/* Reonai Studio - Global Styles */
/* =========================================================
   REONAI COLOR SYSTEM (Light & Dark)
   Inspired by Claude's calm balance — "Soft Tech Warmth"
   ========================================================= */

:root {
  /* -----------------------------
       LIGHT MODE - Claude.ai 스타일
       ----------------------------- */
  --reonai-bg: #ffffff; /* 메인 배경 – 밝은 흰색 (Claude.ai 스타일) */
  --reonai-surface: #fafafa; /* 카드, 패널, 입력창 배경 – 매우 밝은 회색 */
  --reonai-surface-secondary: #f7f7f8; /* 보조 서페이스 */
  --reonai-text-primary: #1a1a1a; /* 기본 텍스트 – 깊은 검정 */
  --reonai-text-secondary: #6b6b6b; /* 보조 텍스트 – 중간 회색 */
  --reonai-border: #e5e5e5; /* 경계선 – 부드러운 회색 (Claude.ai 스타일) */
  --reonai-border-light: #f0f0f0; /* 가벼운 경계선 */
  --reonai-primary: #8e1e23; /* 브랜드 포인트 – 리오나이 레드 (유지) */
  --reonai-primary-hover: #a32a30; /* 액션/호버 시 따뜻한 강조 */
  --reonai-accent: #3a5e7c; /* 데이터/링크 포인트 – 잔잔한 네이비블루 */
  --reonai-success: #3d7a52;
  --reonai-warning: #d3a326;
  --reonai-error: #b53a3f;
  --reonai-shadow: rgba(0, 0, 0, 0.05); /* 부드러운 그림자 (Claude.ai 스타일) */
  --reonai-shadow-hover: rgba(0, 0, 0, 0.1);
  --reonai-ivory: #fafafa;

  /* Breakpoints — Tailwind lg(1024) / md(768) 정렬; @media에도 동일 px 사용 */
  --reonai-bp-sm: 480px;
  --reonai-bp-md: 768px;
  --reonai-bp-lg: 1024px;
  --reonai-bp-narrow-max: 1023px; /* max-width: lg 미만 (우측 패널 오버레이) */
  --reonai-bp-compact-max: 768px; /* max-width: md (사이드바·채팅 키보드) */
  --reonai-bp-sidebar-min: 769px; /* min-width: md+1 (데스크톱 사이드바) */

  /* Spacing scale — 4px grid (0.25rem @ 16px root) */
  --reonai-space-1: 0.25rem;
  --reonai-space-2: 0.5rem;
  --reonai-space-3: 0.75rem;
  --reonai-space-4: 1rem;
  --reonai-space-5: 1.25rem;
  --reonai-space-6: 1.5rem;
  --reonai-space-8: 2rem;
  --reonai-space-10: 2.5rem;
  --reonai-space-12: 3rem;

  /* Touch targets (WCAG / Apple HIG) */
  --reonai-touch-min: 2.75rem;
  --reonai-touch-compact: 2.25rem;

  /* Motion — keypad·모달·인터랙션 */
  --reonai-duration-fast: 0.15s;
  --reonai-duration-normal: 0.28s;
  --reonai-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --reonai-keypad-key-h: var(--reonai-touch-min);
  --reonai-keypad-mode-h: 3.5rem;

  /* Typography scale */
  --reonai-text-2xs: 0.6875rem;
  --reonai-text-xs: 0.75rem;
  --reonai-text-sm: 0.875rem;
  --reonai-text-md: 0.9375rem;
  --reonai-text-chat: 1.0625rem;
  --reonai-text-base: 1rem;
  --reonai-text-lg: 1.125rem;
  --reonai-text-xl: 1.25rem;
  --reonai-text-2xl: 1.5rem;
  --reonai-text-3xl: 2.25rem;
  --reonai-text-display-sm: 2.5rem;
  --reonai-text-display: 3.5rem;

  /* Line heights */
  --reonai-leading-tight: 1.1;
  --reonai-leading-snug: 1.3;
  --reonai-leading-normal: 1.5;
  --reonai-leading-relaxed: 1.7;

  /* Roasting dashboard metrics */
  --reonai-metric-hero: 2.875rem;
  --reonai-metric-hero-md: 3.125rem;
  --reonai-metric-hero-sm: 2.5rem;
  --reonai-metric-primary: 1.875rem;
  --reonai-metric-primary-md: 2rem;
  --reonai-metric-primary-sm: 1.625rem;
  --reonai-metric-cooling: 3rem;
  --reonai-metric-cooling-md: 3.25rem;

  /* Semantic badge surfaces */
  --reonai-status-progress-bg: rgba(58, 94, 124, 0.12);
  --reonai-status-success-bg: rgba(61, 122, 82, 0.12);
  --reonai-status-muted-bg: rgba(107, 107, 107, 0.12);

  /* Focus rings — accent 3px (form controls·wrappers 공통) */
  --reonai-focus-border: var(--reonai-accent);
  --reonai-focus-ring: 0 0 0 3px rgba(58, 94, 124, 0.2);
  --reonai-focus-ring-primary: 0 0 0 3px rgba(142, 30, 35, 0.12);
}

.dark {
  /* -----------------------------
       DARK MODE - Claude.ai 스타일
       ----------------------------- */
  --reonai-bg: #1a1a1a; /* 메인 배경 – 어두운 회색 (Claude.ai 다크 모드) */
  --reonai-surface: #252525; /* 카드, 패널 – 살짝 밝은 어두운 회색 */
  --reonai-surface-secondary: #2a2a2a; /* 보조 서페이스 */
  --reonai-text-primary: #e5e5e5; /* 기본 텍스트 – 밝은 회색 */
  --reonai-text-secondary: #a0a0a0; /* 보조 텍스트 – 중간 밝기 회색 */
  --reonai-border: #3a3a3a; /* 경계선 – 어두운 회색 */
  --reonai-border-light: #2f2f2f; /* 가벼운 경계선 */
  --reonai-primary: #9c2b30; /* 브랜드 레드 – 어두운 배경에서도 자연스럽게 빛남 (유지) */
  --reonai-primary-hover: #b7393e; /* 호버 시 부드러운 강조 */
  --reonai-accent: #587c96; /* 다크모드용 네이비톤 포인트 */
  --reonai-success: #4e8f63;
  --reonai-warning: #d9b23a;
  --reonai-error: #c15a5e;
  --reonai-shadow: rgba(0, 0, 0, 0.3);
  --reonai-shadow-hover: rgba(0, 0, 0, 0.5);

  --reonai-status-progress-bg: rgba(88, 124, 150, 0.18);
  --reonai-status-success-bg: rgba(78, 143, 99, 0.18);
  --reonai-status-muted-bg: rgba(160, 160, 160, 0.14);

  --reonai-focus-ring: 0 0 0 3px rgba(88, 124, 150, 0.28);
  --reonai-focus-ring-primary: 0 0 0 3px rgba(156, 43, 48, 0.22);
}

/* ── Unified form focus (REONai Roast) ── */
.reonai-roast-app .reonai-form-control {
  border: 1px solid var(--reonai-border);
  background: var(--reonai-bg);
  color: var(--reonai-text-primary);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.reonai-roast-app .reonai-form-control:focus {
  outline: none;
  border-color: var(--reonai-focus-border);
  box-shadow: var(--reonai-focus-ring);
}

.reonai-roast-app .reonai-focus-within {
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.reonai-roast-app .reonai-focus-within:focus-within {
  border-color: var(--reonai-focus-border);
  box-shadow: var(--reonai-focus-ring);
}

.reonai-roast-app .desired-roast-quick-btn[aria-pressed="true"],
.reonai-roast-app .desired-roast-quick-btn--selected {
  background: rgba(58, 94, 124, 0.14) !important;
  border-color: var(--reonai-accent) !important;
  color: var(--reonai-accent) !important;
}

.reonai-roast-app .desired-roast-quick-btn:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
}

.reonai-roast-app .session-home-field-clear:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
}

@media (max-width: 1023px) {
  .reonai-roast-app .session-home-field-clear {
    width: var(--reonai-touch-min);
    height: var(--reonai-touch-min);
    margin-right: 0;
  }

  .reonai-roast-app .send-button,
  .reonai-roast-app .tts-toggle-button {
    width: var(--reonai-touch-min);
    height: var(--reonai-touch-min);
    min-width: var(--reonai-touch-min);
    min-height: var(--reonai-touch-min);
  }
}

/* ── Sidebar utility + chat controls ── */
.reonai-roast-app .sidebar-utility-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-width: var(--reonai-touch-min);
  min-height: var(--reonai-touch-min);
  padding: 0;
  border-radius: 0.625rem;
  background: var(--reonai-surface);
  border: 1px solid var(--reonai-border);
  color: var(--reonai-text-primary);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.reonai-roast-app .sidebar-utility-btn:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
}

@media (hover: hover) {
  .reonai-roast-app .sidebar-utility-btn:hover {
    background: var(--reonai-surface-secondary);
    border-color: var(--reonai-accent);
  }
}

.reonai-roast-app .user-profile {
  text-decoration: none;
  color: inherit;
}

.reonai-roast-app .user-profile:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
  border-radius: 0.5rem;
}

.reonai-roast-app .send-button:focus-visible,
.reonai-roast-app .tts-toggle-button:focus-visible,
.reonai-roast-app .font-size-btn:focus-visible,
.reonai-roast-app .font-size-reset:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring-primary);
}

@media (hover: hover) {
  .reonai-roast-app .tts-toggle-button:hover {
    transform: none;
  }
}

/* 기본 텍스트 및 배경 */
body {
  background-color: var(--reonai-bg);
  color: var(--reonai-text-primary);
  font-family:
    "Inter",
    "Noto Sans Thai",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Apple SD Gothic Neo",
    "Noto Sans KR",
    sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* 카드 */
.card {
  background-color: var(--reonai-surface);
  border: 1px solid var(--reonai-border);
  box-shadow: 0 2px 10px var(--reonai-shadow);
  border-radius: 12px;
  padding: 1.2rem;
  transition: all 0.3s ease;
}

/* 버튼 */
.btn-primary {
  background-color: var(--reonai-primary);
  color: var(--reonai-ivory);
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  font-weight: 500;
  transition: background-color 0.25s ease;
  border: none;
}

.btn-primary:hover {
  background-color: var(--reonai-primary-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--reonai-ivory);
  border: 2px solid var(--reonai-border);
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  font-weight: 500;
  transition: all 0.25s ease;
}

.btn-outline:hover {
  background-color: var(--reonai-surface);
  border-color: var(--reonai-primary);
}

/* ── REONai CTA 계층 (Primary / Secondary / Tertiary / Destructive) ── */
.reonai-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0.875rem;
  padding: 0.875rem 1.25rem;
  min-height: 3rem;
  font-size: var(--reonai-text-sm);
  font-weight: 700;
  line-height: var(--reonai-leading-snug);
  cursor: pointer;
  border: none;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.12s ease,
    filter 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}

.reonai-cta:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
}

.reonai-cta:disabled,
.reonai-cta[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.reonai-cta--block {
  width: 100%;
}

.reonai-cta--compact {
  min-height: var(--reonai-touch-compact);
  padding: 0.5rem 0.75rem;
  border-radius: 0.625rem;
  font-size: var(--reonai-text-xs);
  font-weight: 600;
}

@media (max-width: 1023px) {
  .reonai-cta--compact {
    min-height: var(--reonai-touch-min);
    padding: 0.625rem 0.875rem;
  }
}

@media (min-width: 640px) {
  :root {
    --reonai-keypad-mode-h: 4rem;
    --reonai-keypad-key-h: 3.5rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --reonai-keypad-mode-h: 4.5rem;
    --reonai-keypad-key-h: 4rem;
  }
}

/* ── Modal close (44px) ── */
.reonai-roast-app .reonai-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: var(--reonai-touch-min);
  height: var(--reonai-touch-min);
  min-width: var(--reonai-touch-min);
  min-height: var(--reonai-touch-min);
  padding: 0;
  border-radius: 9999px;
  border: 1px solid var(--reonai-border);
  background: var(--reonai-border);
  color: var(--reonai-text-secondary);
  cursor: pointer;
  transition:
    background var(--reonai-duration-fast) var(--reonai-ease-out),
    border-color var(--reonai-duration-fast) var(--reonai-ease-out),
    color var(--reonai-duration-fast) var(--reonai-ease-out),
    transform var(--reonai-duration-fast) var(--reonai-ease-out),
    box-shadow var(--reonai-duration-fast) var(--reonai-ease-out);
}

.reonai-roast-app .reonai-modal-close:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring);
  border-color: var(--reonai-focus-border);
}

@media (hover: hover) {
  .reonai-roast-app .reonai-modal-close:hover {
    background: var(--reonai-surface-secondary);
    border-color: var(--reonai-accent);
    color: var(--reonai-text-primary);
  }
}

.reonai-roast-app .reonai-modal-close:active {
  transform: scale(0.96);
}

.reonai-roast-app .reonai-modal-panel {
  transition: transform var(--reonai-duration-normal) var(--reonai-ease-out);
}

/* showCustomConfirm 계열 — 직각 클리핑 방지, 키패드 모달과 동일 라운드 */
.reonai-roast-app #showCustomConfirm-modal .reonai-modal-panel,
.reonai-roast-app #showCustomCheck-modal .reonai-modal-panel,
.reonai-roast-app #showCustomDiposalSecond-modal .reonai-modal-panel,
.reonai-roast-app #reloadConfirmModal .reonai-modal-panel,
#showCustomConfirm-modal .reonai-modal-panel,
#showCustomCheck-modal .reonai-modal-panel,
#showCustomDiposalSecond-modal .reonai-modal-panel,
#reloadConfirmModal .reonai-modal-panel {
  border-radius: 1.25rem !important;
  overflow: hidden !important;
}

@media (min-width: 640px) {
  .reonai-roast-app #showCustomConfirm-modal .reonai-modal-panel,
  .reonai-roast-app #showCustomCheck-modal .reonai-modal-panel,
  .reonai-roast-app #showCustomDiposalSecond-modal .reonai-modal-panel,
  .reonai-roast-app #reloadConfirmModal .reonai-modal-panel,
  #showCustomConfirm-modal .reonai-modal-panel,
  #showCustomCheck-modal .reonai-modal-panel,
  #showCustomDiposalSecond-modal .reonai-modal-panel,
  #reloadConfirmModal .reonai-modal-panel {
    border-radius: 1.5rem !important;
  }
}

/* ── Keypad touch + motion ── */
.reonai-roast-app .reonai-roast-keypad .keypad-mode-btn {
  min-height: var(--reonai-keypad-mode-h);
  height: auto;
}

.reonai-roast-app .reonai-roast-keypad .keypad-btn,
.reonai-roast-app .reonai-roast-keypad .data-keypad-btn,
.reonai-roast-app .reonai-roast-keypad #keypadBackspace,
.reonai-roast-app .reonai-roast-keypad #keypadClear,
.reonai-roast-app .reonai-roast-keypad #keypadReset,
.reonai-roast-app .reonai-roast-keypad #keypadApplyAll,
.reonai-roast-app .reonai-roast-keypad #keypadCancelAll,
.reonai-roast-app .reonai-roast-keypad #dataKeypadBackspace,
.reonai-roast-app .reonai-roast-keypad #dataKeypadClear,
.reonai-roast-app .reonai-roast-keypad #dataKeypadReset,
.reonai-roast-app .reonai-roast-keypad #dataKeypadApply,
.reonai-roast-app .reonai-roast-keypad #dataKeypadCancel,
.reonai-roast-app .reonai-roast-keypad .grid button {
  min-height: var(--reonai-keypad-key-h);
}

.reonai-roast-app .reonai-roast-keypad .reonai-cta {
  min-height: var(--reonai-touch-min);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .reonai-roast-app .reonai-roast-keypad .keypad-btn:hover,
  .reonai-roast-app .reonai-roast-keypad .data-keypad-btn:hover,
  .reonai-roast-app .reonai-roast-keypad .keypad-mode-btn:hover,
  .reonai-roast-app .reonai-roast-keypad .grid button:hover {
    transform: scale(1.03);
  }
}

.reonai-roast-app .reonai-roast-keypad .keypad-btn:active,
.reonai-roast-app .reonai-roast-keypad .data-keypad-btn:active,
.reonai-roast-app .reonai-roast-keypad .keypad-mode-btn:active,
.reonai-roast-app .reonai-roast-keypad .grid button:active {
  transform: scale(0.97);
}

@media (prefers-reduced-motion: reduce) {
  .reonai-roast-app .reonai-modal-close,
  .reonai-roast-app .reonai-modal-panel,
  .reonai-roast-app .reonai-roast-keypad button {
    transition: none !important;
    animation: none !important;
  }

  .reonai-roast-app .reonai-modal-close:hover,
  .reonai-roast-app .reonai-modal-close:active,
  .reonai-roast-app .reonai-roast-keypad button:hover,
  .reonai-roast-app .reonai-roast-keypad button:active {
    transform: none !important;
  }

  .reonai-roast-app .reonai-modal-panel {
    transform: none !important;
  }

  .reonai-roast-app #keypadInputCursor,
  .reonai-roast-app #dataKeypadInputCursor {
    animation: none !important;
    opacity: 1 !important;
  }

  .reonai-roast-app #keypadModal,
  .reonai-roast-app #preheatKeypadModal,
  .reonai-roast-app #dataKeypadModal,
  .reonai-roast-app .reonai-roast-dialog {
    backdrop-filter: none !important;
  }
}

/* ── Touch target utility ── */
.reonai-touch-target {
  min-width: var(--reonai-touch-min);
  min-height: var(--reonai-touch-min);
}

@media (max-width: 1023px) {
  .reonai-roast-app button:not(.reonai-touch-exempt),
  .reonai-roast-app [role="button"]:not(.reonai-touch-exempt),
  .reonai-roast-app a.reonai-touch-target,
  .reonai-roast-app .session-home-filter-btn,
  .reonai-roast-app .session-home-item,
  .reonai-roast-app .desired-roast-quick-btn,
  .reonai-roast-app .optimizing-fan-btn,
  .reonai-roast-app .chat-font-size-btn,
  .reonai-roast-app .admin-panel-item,
  .reonai-roast-app .back-to-session-btn {
    min-height: var(--reonai-touch-min);
  }

  .reonai-roast-app .optimizing-fan-btn,
  .reonai-roast-app .chat-font-size-btn,
  .reonai-roast-app .mobile-sidebar-toggle,
  .reonai-roast-app #toggleRightPanelBtn {
    min-width: var(--reonai-touch-min);
  }

  .reonai-roast-app .desired-roast-quick-btn {
    min-width: var(--reonai-touch-min);
    padding: 0.5rem 0.75rem;
  }

  .reonai-roast-app select,
  .reonai-roast-app .session-home-search-input {
    min-height: var(--reonai-touch-min);
  }
}

.reonai-cta--pill {
  border-radius: 9999px;
  min-height: auto;
  padding: var(--reonai-space-2) var(--reonai-space-4);
}

/* Primary — 브랜드 레드 솔리드 */
.reonai-cta--primary,
.session-primary-cta,
.session-landing-btn.primary,
.new-chat-button,
.new-roasting-button {
  background: var(--reonai-primary);
  color: var(--reonai-ivory);
  box-shadow: 0 4px 14px rgba(142, 30, 35, 0.22);
}

.reonai-cta--primary:hover:not(:disabled),
.session-primary-cta:hover:not(:disabled),
.session-landing-btn.primary:hover:not(:disabled),
.new-chat-button:hover:not(:disabled),
.new-roasting-button:hover:not(:disabled) {
  background: var(--reonai-primary-hover);
  filter: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(142, 30, 35, 0.28);
}

.reonai-cta--primary:active:not(:disabled),
.session-primary-cta:active:not(:disabled),
.session-landing-btn.primary:active:not(:disabled),
.new-chat-button:active:not(:disabled),
.new-roasting-button:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(142, 30, 35, 0.2);
}

.reonai-cta--primary:focus-visible,
.session-primary-cta:focus-visible {
  box-shadow: var(--reonai-focus-ring-primary);
}

/* Pairing 등 → 최근 항목(세션 홈) 복귀 */
.reonai-roast-app .back-to-session-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.65rem;
  margin: 0;
  border: none;
  border-radius: 0.625rem;
  background: transparent;
  color: var(--reonai-text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.reonai-roast-app .back-to-session-btn:hover {
  background: rgba(58, 94, 124, 0.08);
  color: var(--reonai-accent);
}

.reonai-roast-app .back-to-session-btn:focus-visible {
  outline: none;
  box-shadow: var(--reonai-focus-ring, 0 0 0 3px rgba(58, 94, 124, 0.28));
}

/* Secondary — accent 아웃라인 */
.reonai-cta--secondary,
.session-secondary-cta,
.session-home-new-btn,
#generateProfileBtn,
#generateProfileBtnDesktop,
#connectBtn {
  background: transparent;
  color: var(--reonai-accent);
  border: 1.5px solid rgba(58, 94, 124, 0.38);
  box-shadow: none;
}

.reonai-cta--secondary:hover:not(:disabled),
.session-secondary-cta:hover:not(:disabled),
.session-home-new-btn:hover:not(:disabled),
#generateProfileBtn:not(:disabled):hover,
#generateProfileBtnDesktop:not(:disabled):hover,
#connectBtn:hover:not(:disabled) {
  background: rgba(58, 94, 124, 0.08);
  border-color: rgba(58, 94, 124, 0.52);
  filter: none;
  transform: translateY(-1px);
}

.reonai-cta--secondary:active:not(:disabled),
.session-secondary-cta:active:not(:disabled),
.session-home-new-btn:active:not(:disabled),
#generateProfileBtn:not(:disabled):active,
#generateProfileBtnDesktop:not(:disabled):active,
#connectBtn:active:not(:disabled) {
  background: rgba(58, 94, 124, 0.12);
  transform: scale(0.98);
}

.reonai-cta--secondary:disabled,
.session-secondary-cta:disabled,
#generateProfileBtn:disabled,
#generateProfileBtnDesktop:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  border-color: var(--reonai-border);
  color: var(--reonai-text-secondary);
  background: transparent;
  transform: none;
  box-shadow: none;
}

/* Tertiary — ghost */
.reonai-cta--tertiary,
.welcome-cta {
  background: rgba(58, 94, 124, 0.08);
  color: var(--reonai-accent);
  border: 1px solid rgba(58, 94, 124, 0.28);
  box-shadow: none;
  min-height: auto;
}

.reonai-cta--tertiary:hover:not(:disabled),
.welcome-cta:hover:not(:disabled) {
  background: rgba(58, 94, 124, 0.14);
  border-color: rgba(58, 94, 124, 0.38);
}

.reonai-cta--tertiary:active:not(:disabled),
.welcome-cta:active:not(:disabled) {
  transform: scale(0.98);
}

/* Destructive — 위험 액션 */
.reonai-cta--destructive,
#coolingStartBtn,
#forceDisposeBtn,
#confirmModalAction,
.session-home-delete-confirm-btn {
  background: var(--reonai-error);
  color: var(--reonai-ivory);
  border: 1.5px solid var(--reonai-error);
  box-shadow: 0 4px 14px rgba(181, 58, 63, 0.25);
}

.reonai-cta--destructive:hover:not(:disabled),
#coolingStartBtn:hover:not(:disabled),
#forceDisposeBtn:hover:not(:disabled),
#confirmModalAction:hover:not(:disabled),
.session-home-delete-confirm-btn:hover:not(:disabled) {
  background: #c94a4f;
  border-color: #c94a4f;
  filter: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(181, 58, 63, 0.32);
}

.reonai-cta--destructive:active:not(:disabled),
#coolingStartBtn:active:not(:disabled),
#forceDisposeBtn:active:not(:disabled),
#confirmModalAction:active:not(:disabled),
.session-home-delete-confirm-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(181, 58, 63, 0.22);
}

.session-home-delete-cancel,
.session-home-delete-confirm-btn {
  min-height: var(--reonai-space-8);
  padding: var(--reonai-space-2) var(--reonai-space-3);
  font-size: var(--reonai-text-xs);
  font-weight: 600;
  border-radius: var(--reonai-space-2);
  line-height: 1.2;
}

/* Ghost — 취소·보조 */
.reonai-cta--ghost,
#confirmModalCancel,
.session-home-delete-cancel {
  background: var(--reonai-surface);
  color: var(--reonai-text-primary);
  border: 1px solid var(--reonai-border);
  box-shadow: none;
}

.reonai-cta--ghost:hover:not(:disabled),
#confirmModalCancel:hover:not(:disabled),
.session-home-delete-cancel:hover:not(:disabled) {
  background: var(--reonai-surface-secondary);
  border-color: rgba(58, 94, 124, 0.28);
}

/* Primary — 로스팅 시작 */
#roastInfoStartBtn:not(:disabled),
#roastInfoStartBtnDesktop:not(:disabled) {
  background: var(--reonai-primary);
  color: var(--reonai-ivory);
  border: none;
  box-shadow: 0 4px 14px rgba(142, 30, 35, 0.22);
}

#roastInfoStartBtn:not(:disabled):hover,
#roastInfoStartBtnDesktop:not(:disabled):hover {
  background: var(--reonai-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(142, 30, 35, 0.28);
}

/* Neutral — 로스팅 퀵 액션 (Yellow/Crack) */
.reonai-cta--neutral {
  background: var(--reonai-bg);
  color: var(--reonai-text-primary);
  border: 1px solid var(--reonai-border);
  box-shadow: none;
  min-height: 2.25rem;
  padding: 0.5rem 0.5rem;
  border-radius: 0.5rem;
  font-size: var(--reonai-text-xs);
  font-weight: 600;
}

.reonai-cta--neutral:hover:not(:disabled) {
  background: var(--reonai-surface-secondary);
  border-color: rgba(58, 94, 124, 0.28);
}

.reonai-cta--neutral:active:not(:disabled) {
  transform: scale(0.95);
}

/* Success — 완료·저장·확인 */
.reonai-cta--success,
#puttingCompleteBtnMobile,
#puttingCompleteBtnDesktop,
#coolingSaveBtn,
#Check,
#preheatKeypadModal button[onclick="confirmPreheatTemp()"] {
  background: var(--reonai-success);
  color: var(--reonai-ivory);
  border: 1.5px solid var(--reonai-success);
  box-shadow: 0 4px 14px rgba(61, 122, 82, 0.2);
}

.reonai-cta--success:hover:not(:disabled),
#puttingCompleteBtnMobile:hover:not(:disabled),
#puttingCompleteBtnDesktop:hover:not(:disabled),
#coolingSaveBtn:hover:not(:disabled),
#Check:hover:not(:disabled),
#preheatKeypadModal button[onclick="confirmPreheatTemp()"]:hover:not(:disabled) {
  background: #4a9162;
  border-color: #4a9162;
  filter: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(61, 122, 82, 0.28);
}

.reonai-cta--success:active:not(:disabled),
#puttingCompleteBtnMobile:active:not(:disabled),
#puttingCompleteBtnDesktop:active:not(:disabled),
#coolingSaveBtn:active:not(:disabled),
#Check:active:not(:disabled),
#preheatKeypadModal button[onclick="confirmPreheatTemp()"]:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(61, 122, 82, 0.18);
}

/* Warning — 주의·중지 */
.reonai-cta--warning,
#CoolDowndStopBtn,
#preheatKeypadModal button[onclick="clearPreheatInput()"] {
  background: var(--reonai-warning);
  color: var(--reonai-ivory);
  border: 1.5px solid var(--reonai-warning);
  box-shadow: 0 4px 14px rgba(211, 163, 38, 0.22);
}

.reonai-cta--warning:hover:not(:disabled),
#CoolDowndStopBtn:hover:not(:disabled),
#preheatKeypadModal button[onclick="clearPreheatInput()"]:hover:not(:disabled) {
  background: #d9b23a;
  border-color: #d9b23a;
  filter: none;
  transform: translateY(-1px);
}

.reonai-cta--warning:active:not(:disabled),
#CoolDowndStopBtn:active:not(:disabled),
#preheatKeypadModal button[onclick="clearPreheatInput()"]:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

/* 워크플로우 Primary (로스팅 진행·준비) */
#roastPrepareStartBtn,
#roastingStartBtnForOptimizingMobile,
#roastingStartBtnForOptimizing,
#roastingStartBtnForPuttingMobile,
#roastingStartBtnForPuttingDesktop,
#optimizingCompleteStartBtn,
#roastingStartBtnForNoneOptima,
#continueRoastingBtn,
#reloadConfirm-ok,
#beanOptimizationBtn,
#beanOptimizationBtnDesktop {
  background: var(--reonai-primary);
  color: var(--reonai-ivory);
  border: none;
  box-shadow: 0 4px 14px rgba(142, 30, 35, 0.22);
}

#roastPrepareStartBtn:hover:not(:disabled),
#roastingStartBtnForOptimizingMobile:hover:not(:disabled),
#roastingStartBtnForOptimizing:hover:not(:disabled),
#roastingStartBtnForPuttingMobile:hover:not(:disabled),
#roastingStartBtnForPuttingDesktop:hover:not(:disabled),
#optimizingCompleteStartBtn:hover:not(:disabled),
#roastingStartBtnForNoneOptima:hover:not(:disabled),
#continueRoastingBtn:hover:not(:disabled),
#reloadConfirm-ok:hover:not(:disabled),
#beanOptimizationBtn:hover:not(:disabled),
#beanOptimizationBtnDesktop:hover:not(:disabled) {
  background: var(--reonai-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(142, 30, 35, 0.28);
}

/* 워크플로우 Secondary (설정·프리히트) */
#basicPreheatBtnReady,
#basicPreheatBtnReadyDesktop,
#confirmManualFanSetupBtn,
#disposalModeBtn,
#diposalSecond-4s,
#diposalSecond-6s,
#diposalSecond-8s,
#diposalSecond-10s,
#diposalSecond-12s,
#roastingSendButton {
  background: transparent;
  color: var(--reonai-accent);
  border: 1.5px solid rgba(58, 94, 124, 0.38);
  box-shadow: none;
}

#basicPreheatBtnReady:hover:not(:disabled),
#basicPreheatBtnReadyDesktop:hover:not(:disabled),
#confirmManualFanSetupBtn:hover:not(:disabled),
#disposalModeBtn:hover:not(:disabled),
#diposalSecond-4s:hover:not(:disabled),
#diposalSecond-6s:hover:not(:disabled),
#diposalSecond-8s:hover:not(:disabled),
#diposalSecond-10s:hover:not(:disabled),
#diposalSecond-12s:hover:not(:disabled),
#roastingSendButton:hover:not(:disabled) {
  background: rgba(58, 94, 124, 0.08);
  border-color: rgba(58, 94, 124, 0.52);
  transform: translateY(-1px);
}

/* 워크플로우 Destructive (중지) */
#preheatStopBtnReady,
#preheatStopBtnReadyDesktop,
#confirm-yes {
  background: var(--reonai-error);
  color: var(--reonai-ivory);
  border: 1.5px solid var(--reonai-error);
  box-shadow: 0 4px 14px rgba(181, 58, 63, 0.25);
}

#preheatStopBtnReady:hover:not(:disabled),
#preheatStopBtnReadyDesktop:hover:not(:disabled),
#confirm-yes:hover:not(:disabled) {
  background: #c94a4f;
  border-color: #c94a4f;
  transform: translateY(-1px);
}

/* 모달 Ghost */
#confirm-no,
#disposal-cancel,
#reloadConfirm-cancel,
#preheatKeypadModal button[onclick="closePreheatKeypad()"] {
  background: var(--reonai-surface);
  color: var(--reonai-text-primary);
  border: 1.5px solid var(--reonai-border);
  box-shadow: none;
}

#confirm-no:hover:not(:disabled),
#disposal-cancel:hover:not(:disabled),
#reloadConfirm-cancel:hover:not(:disabled),
#preheatKeypadModal button[onclick="closePreheatKeypad()"]:hover:not(:disabled) {
  background: var(--reonai-surface-secondary);
  border-color: rgba(58, 94, 124, 0.28);
}

/* 링크 / 포인트 */
a.link {
  color: var(--reonai-accent);
  text-decoration: none;
  transition: all 0.25s ease;
}

a.link:hover {
  text-decoration: underline;
}

/* ==========================================
   COMMUNITY BOARD STYLES
   ========================================== */

/* Filter Tabs */
.filter-tab {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background-color: transparent;
  color: var(--reonai-text-secondary);
  border: 1px solid var(--reonai-border);
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.filter-tab:hover {
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
}

.filter-tab.active {
  background-color: var(--reonai-primary);
  color: white;
  border-color: var(--reonai-primary);
}

/* Badges */
.badge-primary {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  background-color: rgba(142, 30, 35, 0.15);
  color: var(--reonai-primary);
}

.dark .badge-primary {
  background-color: rgba(156, 43, 48, 0.2);
  color: var(--reonai-primary);
}

.badge-notice {
  background-color: rgba(220, 38, 38, 0.15);
  color: #dc2626;
  font-weight: 700;
}

.badge-question {
  background-color: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
}

.badge-tip {
  background-color: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.badge-talk {
  background-color: rgba(234, 179, 8, 0.15);
  color: #eab308;
}

.badge-share {
  background-color: rgba(168, 85, 247, 0.15);
  color: #a855f7;
}

.badge-review {
  background-color: rgba(249, 115, 22, 0.15);
  color: #f97316;
}

.dark .badge-notice {
  background-color: rgba(220, 38, 38, 0.25);
  color: #f87171;
  font-weight: 700;
}

.dark .badge-question {
  background-color: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.dark .badge-tip {
  background-color: rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

.dark .badge-talk {
  background-color: rgba(234, 179, 8, 0.2);
  color: #facc15;
}

.dark .badge-share {
  background-color: rgba(168, 85, 247, 0.2);
  color: #c084fc;
}

.dark .badge-review {
  background-color: rgba(249, 115, 22, 0.2);
  color: #fb923c;
}

/* Origin Badges */
.badge-ethiopia {
  background-color: rgba(234, 179, 8, 0.15);
  color: #eab308;
}

.badge-colombia {
  background-color: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
}

.badge-brazil {
  background-color: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.badge-kenya {
  background-color: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.badge-other {
  background-color: rgba(156, 163, 175, 0.15);
  color: #9ca3af;
}

.dark .badge-ethiopia {
  background-color: rgba(234, 179, 8, 0.2);
  color: #fbbf24;
}

.dark .badge-colombia {
  background-color: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.dark .badge-brazil {
  background-color: rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

/* ==========================================
  LANGUAGE SWITCHER
  ========================================== */
[data-lang-switcher] {
  width: 100%;
  min-width: 0;
}

[data-lang-switcher] .reonai-lang-select {
  width: 100%;
  min-width: 0;
  height: 2.5rem;
  padding: 0 2.25rem 0 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid var(--reonai-border);
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  box-shadow: 0 1px 2px var(--reonai-shadow);
  color-scheme: light;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

[data-lang-switcher] .reonai-lang-select option {
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
}

[data-lang-switcher] .reonai-lang-select:hover {
  border-color: var(--reonai-accent);
  background-color: var(--reonai-surface-secondary);
}

[data-lang-switcher] .reonai-lang-select:focus {
  outline: none;
  border-color: var(--reonai-accent);
  box-shadow: var(--reonai-focus-ring);
}

html.dark [data-lang-switcher] .reonai-lang-select,
.dark [data-lang-switcher] .reonai-lang-select,
[data-theme='dark'] [data-lang-switcher] .reonai-lang-select {
  color-scheme: dark;
}

html.dark [data-lang-switcher] .reonai-lang-select option,
.dark [data-lang-switcher] .reonai-lang-select option,
[data-theme='dark'] [data-lang-switcher] .reonai-lang-select option {
  background-color: #252525;
  color: #e5e5e5;
}

html.dark [data-lang-switcher] .reonai-lang-select:focus,
.dark [data-lang-switcher] .reonai-lang-select:focus,
[data-theme='dark'] [data-lang-switcher] .reonai-lang-select:focus {
  box-shadow: var(--reonai-focus-ring);
}

/* ==========================================
  AI PROVIDER SWITCHER
  ========================================== */
[data-ai-provider-switcher] {
  width: 100%;
  min-width: 0;
}

[data-ai-provider-switcher] .reonai-ai-provider-select {
  width: 100%;
  min-width: 0;
  height: 2.5rem;
  padding: 0 2.25rem 0 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid var(--reonai-border);
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  box-shadow: 0 1px 2px var(--reonai-shadow);
  color-scheme: light;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

[data-ai-provider-switcher] .reonai-ai-provider-select option {
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
}

[data-ai-provider-switcher] .reonai-ai-provider-select:hover {
  border-color: var(--reonai-accent);
  background-color: var(--reonai-surface-secondary);
}

[data-ai-provider-switcher] .reonai-ai-provider-select:focus {
  outline: none;
  border-color: var(--reonai-accent);
  box-shadow: var(--reonai-focus-ring);
}

html.dark [data-ai-provider-switcher] .reonai-ai-provider-select,
.dark [data-ai-provider-switcher] .reonai-ai-provider-select,
[data-theme='dark'] [data-ai-provider-switcher] .reonai-ai-provider-select {
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
  border-color: var(--reonai-border);
  color-scheme: dark;
  box-shadow: 0 1px 2px var(--reonai-shadow);
}

html.dark [data-ai-provider-switcher] .reonai-ai-provider-select option,
.dark [data-ai-provider-switcher] .reonai-ai-provider-select option,
[data-theme='dark'] [data-ai-provider-switcher] .reonai-ai-provider-select option {
  background-color: #252525;
  color: #e5e5e5;
}

html.dark [data-ai-provider-switcher] .reonai-ai-provider-select:hover,
.dark [data-ai-provider-switcher] .reonai-ai-provider-select:hover,
[data-theme='dark'] [data-ai-provider-switcher] .reonai-ai-provider-select:hover {
  border-color: var(--reonai-accent);
  background-color: var(--reonai-surface-secondary);
}

html.dark [data-ai-provider-switcher] .reonai-ai-provider-select:focus,
.dark [data-ai-provider-switcher] .reonai-ai-provider-select:focus,
[data-theme='dark'] [data-ai-provider-switcher] .reonai-ai-provider-select:focus {
  border-color: var(--reonai-accent);
  box-shadow: var(--reonai-focus-ring);
}

.dark .badge-kenya {
  background-color: rgba(239, 68, 68, 0.2);
  color: #f87171;
}

.dark .badge-other {
  background-color: rgba(156, 163, 175, 0.2);
  color: #d1d5db;
}

/* Mode Badges */
.badge-expert {
  background-color: rgba(142, 30, 35, 0.15);
  color: #8e1e23;
}

.badge-balance {
  background-color: rgba(58, 94, 124, 0.15);
  color: #3a5e7c;
}

.badge-simple {
  background-color: rgba(61, 122, 82, 0.15);
  color: #3d7a52;
}

.badge-pilot {
  background-color: rgba(211, 163, 38, 0.15);
  color: #d3a326;
}

.dark .badge-expert {
  background-color: rgba(156, 43, 48, 0.2);
  color: #9c2b30;
}

.dark .badge-balance {
  background-color: rgba(88, 124, 150, 0.2);
  color: #587c96;
}

.dark .badge-simple {
  background-color: rgba(78, 143, 99, 0.2);
  color: #4e8f63;
}

.dark .badge-pilot {
  background-color: rgba(217, 178, 58, 0.2);
  color: #d9b23a;
}

/* Modern Button Styles */
.btn-modern {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-modern-primary {
  background-color: var(--reonai-primary);
  color: white;
}

.btn-modern-primary:hover {
  background-color: var(--reonai-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(142, 30, 35, 0.3);
}

.btn-modern-outline {
  background-color: transparent;
  color: var(--reonai-text-primary);
  border: 1px solid var(--reonai-border);
}

.btn-modern-outline:hover {
  background-color: var(--reonai-surface);
  border-color: var(--reonai-primary);
}

/* Scrollbar Hide */
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

/* Line Clamp */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Prose (for content display) */
.prose {
  line-height: 1.75;
}

.prose p {
  margin-bottom: 1em;
}

/* Utility Classes */
.text-primary {
  color: var(--reonai-text-primary);
}

.text-secondary {
  color: var(--reonai-text-secondary);
}

.text-text-primary {
  color: var(--reonai-text-primary);
}

.text-text-secondary {
  color: var(--reonai-text-secondary);
}

.bg-background {
  background-color: var(--reonai-bg);
}

.bg-surface {
  background-color: var(--reonai-surface);
}

.bg-surface-hover {
  background-color: var(--reonai-surface);
  filter: brightness(0.95);
}

.dark .bg-surface-hover {
  filter: brightness(1.1);
}

.bg-primary {
  background-color: var(--reonai-primary);
}

.bg-primary-hover {
  background-color: var(--reonai-primary-hover);
}

.border-border {
  border-color: var(--reonai-border);
}

/* 색상 유틸리티 클래스 */
.text-primary {
  color: var(--reonai-primary);
}

.text-secondary {
  color: var(--reonai-text-secondary);
}

.text-text-primary {
  color: var(--reonai-text-primary);
}

.text-error {
  color: var(--reonai-error);
}

.bg-surface {
  background-color: var(--reonai-surface);
}

.border-border {
  border-color: var(--reonai-border);
}

/* Modern Floating Navbar with Glassmorphism */
.nav-modern {
  background: rgba(250, 247, 243, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(216, 210, 202, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .nav-modern {
  background: rgba(29, 27, 26, 0.8);
  border-bottom: 1px solid rgba(43, 40, 38, 0.5);
}

/* Navbar on scroll effect */
.nav-modern.scrolled {
  box-shadow: 0 8px 32px var(--reonai-shadow);
}

/* Logo with gradient text */
.logo-gradient {
  background: linear-gradient(
    135deg,
    var(--reonai-primary) 0%,
    var(--reonai-accent) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* Modern nav link style */
.nav-link-modern {
  position: relative;
  color: var(--reonai-text-primary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 12px;
  transition: all 0.3s ease;
  /* Add invisible padding for better hover area */
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.nav-link-modern:hover {
  background-color: var(--reonai-surface);
  transform: translateY(-2px);
}

.nav-link-modern::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--reonai-primary),
    var(--reonai-accent)
  );
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link-modern:hover::after {
  width: 80%;
}

/* Pill-shaped action buttons */
.btn-modern {
  padding: 0.625rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-modern::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2));
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn-modern:hover::before {
  transform: translateX(100%);
}

.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--reonai-shadow);
}

.btn-modern-outline {
  background: transparent;
  border: 2px solid var(--reonai-border);
  color: var(--reonai-text-primary);
}

.btn-modern-outline:hover {
  border-color: var(--reonai-primary);
  background: var(--reonai-primary);
  color: var(--reonai-ivory);
}

.btn-modern-primary {
  background: linear-gradient(
    135deg,
    var(--reonai-primary),
    var(--reonai-primary-hover)
  );
  color: var(--reonai-ivory);
  border: none;
}

/* Feature cards */
.feature-card {
  background-color: var(--reonai-surface);
  border: 1px solid var(--reonai-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.feature-card:hover {
  box-shadow: 0 8px 24px var(--reonai-shadow);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Theme toggle button */
.theme-toggle {
  position: relative;
  width: 56px;
  height: 28px;
  background-color: var(--reonai-border);
  border-radius: 14px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.theme-toggle-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background-color: var(--reonai-ivory);
  border-radius: 50%;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.dark .theme-toggle-slider {
  transform: translateX(28px);
}

.dark .theme-toggle {
  background-color: var(--reonai-primary);
}

/* Text colors */
.text-primary {
  color: var(--reonai-text-primary);
}

.text-secondary {
  color: var(--reonai-text-secondary);
}

.text-reonai {
  color: var(--reonai-primary);
}

/* Smooth transitions */
* {
  transition-duration: 200ms;
}

/* Modern Dropdown with Glassmorphism */
.dropdown-modern {
  position: absolute;
  background: rgba(250, 247, 243, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(216, 210, 202, 0.3);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
  padding: 0.5rem;
  min-width: 220px;
  margin-top: 0.75rem;
  transform-origin: top left;
  /* Add invisible padding to create larger hover area */
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  /* Position at left edge of parent */
  left: 0;
  right: auto;
}

.dark .dropdown-modern {
  background: rgba(29, 27, 26, 0.95);
  border: 1px solid rgba(43, 40, 38, 0.5);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

/* Desktop: position relative for dropdown parent */
@media (min-width: 768px) {
  .nav-menu li {
    position: relative;
  }

  /* Position dropdown below the button */
  .dropdown-modern {
    left: 0;
    right: auto;
    transform-origin: top left;
  }

  /* For right-aligned menu items, align dropdown to the right */
  .nav-menu li:nth-last-child(-n + 2) .dropdown-modern {
    left: auto;
    right: 0;
    transform-origin: top right;
  }
}

/* Mobile: full width dropdown */
@media (max-width: 767px) {
  .dropdown-modern {
    position: static;
    width: 100%;
    margin-top: 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--reonai-surface);
    backdrop-filter: none;
  }

  .dropdown-modern a {
    padding-left: 2rem !important;
  }
}

.dropdown-modern ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dropdown-modern li {
  margin: 0;
}

.dropdown-modern a {
  display: flex;
  align-items: center;
  color: var(--reonai-text-primary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.dropdown-modern a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(
    180deg,
    var(--reonai-primary),
    var(--reonai-accent)
  );
  transform: scaleY(0);
  transition: transform 0.2s ease;
}

.dropdown-modern a:hover {
  background: linear-gradient(
    135deg,
    var(--reonai-primary),
    var(--reonai-primary-hover)
  );
  color: var(--reonai-ivory);
  transform: translateX(4px);
  padding-left: 1.25rem;
}

.dropdown-modern a:hover::before {
  transform: scaleY(1);
}

/* Dropdown animation - Smooth entrance */
@keyframes dropdownSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-8px) scale(0.95);
    visibility: hidden;
  }
  1% {
    visibility: visible;
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
  }
}

@keyframes dropdownSlideOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
  }
  99% {
    opacity: 0;
    transform: translateY(-8px) scale(0.95);
    visibility: visible;
  }
  100% {
    opacity: 0;
    transform: translateY(-8px) scale(0.95);
    visibility: hidden;
  }
}

/* Apply animations */
@media (min-width: 768px) {
  .dropdown-modern {
    animation: dropdownSlideOut 0.2s cubic-bezier(0.4, 0, 1, 1) forwards;
  }

  .dropdown-modern.show {
    animation: dropdownSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
}

/* Mobile: no animation */
@media (max-width: 767px) {
  .dropdown-modern {
    animation: none !important;
  }
}

/* Navigation dropdown button with arrow rotation */
.nav-link-dropdown {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.nav-link-dropdown svg {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  width: 16px;
  height: 16px;
}

.nav-link-dropdown[aria-expanded='true'] svg {
  transform: rotate(180deg);
}

/* Mobile menu with modern styling */
@media (max-width: 767px) {
  .mobile-menu-container {
    background: var(--reonai-surface);
    border-radius: 20px;
    padding: 1rem;
    margin-top: 1rem;
    border: 1px solid var(--reonai-border);
  }

  .nav-menu button,
  .dropdown-modern a {
    min-height: 44px;
  }
}

/* Mobile menu toggle animation */
.hamburger-line {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-open .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translateY(6px);
}

.hamburger-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-open .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translateY(-6px);
}

/* Prevent body scroll when mobile menu is open */
body.menu-open {
  overflow: hidden;
}

/* Z-index management */
.dropdown-modern {
  z-index: 50;
}

nav {
  z-index: 1000;
}

/* Badge for "Soon" items */
.badge-soon {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  background: linear-gradient(
    135deg,
    var(--reonai-primary),
    var(--reonai-accent)
  );
  color: white;
  margin-left: 0.5rem;
}

/* =========================================================
   EXPERT MODE CONTROL CARDS
   Modern, touch-friendly design for roasting controls
   ========================================================= */

.control-card {
  @apply bg-white dark:bg-gray-800 rounded-xl p-4 shadow-lg border border-gray-200 dark:border-gray-700;
  background-color: var(--reonai-surface);
  border-color: var(--reonai-border);
  transition: all 0.3s ease;
}

.control-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.control-header {
  @apply flex items-center justify-center space-x-2 mb-3;
}

.control-icon {
  @apply w-8 h-8 rounded-full flex items-center justify-center shadow-md;
  transition: all 0.3s ease;
}

.control-icon:hover {
  transform: scale(1.1);
}

.control-label {
  @apply text-sm font-semibold uppercase tracking-wide;
  font-weight: 600;
}

.control-value {
  @apply mb-4;
}

.value-input {
  @apply w-full h-12 text-center text-lg font-bold rounded-lg border-2 transition-all duration-300;
  background-color: var(--reonai-bg);
  border-color: var(--reonai-border);
  color: var(--reonai-text-primary);
}

.value-input:focus {
  outline: none;
  border-color: var(--reonai-accent);
  box-shadow: 0 0 0 3px rgba(58, 94, 124, 0.1);
}

.control-buttons {
  @apply flex justify-center space-x-3;
}

.control-btn {
  @apply w-12 h-12 rounded-full flex items-center justify-center transition-all duration-300 shadow-md;
  background-color: var(--reonai-bg);
  border: 2px solid var(--reonai-border);
  color: var(--reonai-text-primary);
}

.control-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.control-btn:active {
  transform: scale(0.95);
}

.control-btn-plus:hover {
  background-color: var(--reonai-success);
  border-color: var(--reonai-success);
  color: white;
}

.control-btn-minus:hover {
  background-color: var(--reonai-error);
  border-color: var(--reonai-error);
  color: white;
}

.control-slider {
  @apply w-full h-2 rounded-lg cursor-pointer;
  background: linear-gradient(
    to right,
    var(--reonai-border),
    var(--reonai-accent)
  );
  outline: none;
  -webkit-appearance: none;
}

.control-slider::-webkit-slider-thumb {
  @apply w-5 h-5 rounded-full cursor-pointer;
  background-color: var(--reonai-accent);
  border: 2px solid white;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  -webkit-appearance: none;
}

.control-slider::-moz-range-thumb {
  @apply w-5 h-5 rounded-full cursor-pointer;
  background-color: var(--reonai-accent);
  border: 2px solid white;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* 반응형 디자인 */
@media (max-width: 640px) {
  .control-card {
    @apply p-3;
  }

  .control-icon {
    @apply w-6 h-6;
  }

  .control-label {
    @apply text-xs;
  }

  .value-input {
    @apply h-10 text-base;
  }

  .control-btn {
    @apply w-10 h-10;
  }
}

/* 다크모드 특별 스타일 */
.dark .control-card {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.dark .control-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.dark .value-input:focus {
  box-shadow: 0 0 0 3px rgba(88, 124, 150, 0.2);
}

.dark .control-btn:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* =========================================================
   MODERN TOGGLE SWITCH
   Sleek toggle design for AUTO Roasting
   ========================================================= */

.modern-toggle-container {
  @apply flex justify-center items-center p-4 rounded-xl shadow-lg;
  background-color: var(--reonai-surface);
  border: 1px solid var(--reonai-border);
  transition: all 0.3s ease;
}

.modern-toggle-container:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.modern-toggle-label {
  @apply flex items-center space-x-3 cursor-pointer;
}

.modern-toggle-input {
  @apply sr-only;
}

.modern-toggle-slider {
  @apply relative w-14 h-7 rounded-full transition-all duration-300;
  background-color: var(--reonai-border);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.modern-toggle-thumb {
  @apply absolute top-0.5 left-0.5 w-6 h-6 rounded-full transition-all duration-300;
  background-color: white;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.modern-toggle-input:checked + .modern-toggle-slider {
  background: linear-gradient(
    135deg,
    var(--reonai-success),
    var(--reonai-accent)
  );
  box-shadow: 0 0 0 3px rgba(61, 122, 82, 0.2);
}

.modern-toggle-input:checked + .modern-toggle-slider .modern-toggle-thumb {
  transform: translateX(1.75rem);
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.modern-toggle-text {
  @apply text-sm font-semibold;
  color: var(--reonai-text-primary);
  transition: color 0.3s ease;
}

.modern-toggle-input:checked ~ .modern-toggle-text {
  color: var(--reonai-success);
}

/* 다크모드 토글 스타일 */
.dark .modern-toggle-container {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.dark .modern-toggle-container:hover {
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
}

.dark .modern-toggle-slider {
  background-color: var(--reonai-border);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.dark .modern-toggle-thumb {
  background-color: var(--reonai-text-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.dark .modern-toggle-input:checked + .modern-toggle-slider {
  box-shadow: 0 0 0 3px rgba(78, 143, 99, 0.3);
}

.dark
  .modern-toggle-input:checked
  + .modern-toggle-slider
  .modern-toggle-thumb {
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.dark .modern-toggle-input:checked ~ .modern-toggle-text {
  color: var(--reonai-success);
}

/* =========================================================
   CUSTOM SCROLLBAR for indicatorDiv
   Modern, minimal scrollbar design
   ========================================================= */

.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: var(--reonai-bg);
  border-radius: 10px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: linear-gradient(
    135deg,
    var(--reonai-accent),
    var(--reonai-primary)
  );
  border-radius: 10px;
  transition: all 0.3s ease;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    135deg,
    var(--reonai-primary),
    var(--reonai-primary-hover)
  );
}

/* Firefox */
.custom-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: var(--reonai-accent) var(--reonai-bg);
}

/* =========================================================
   ENHANCED SHADOWS for modern depth
   ========================================================= */

.shadow-3xl {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.dark .shadow-3xl {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* =========================================================
   RGB COLOR VARIABLES for rgba() usage
   ========================================================= */

:root {
  --reonai-surface-rgb: 250, 247, 243;
  --reonai-bg-rgb: 244, 238, 229;
  --reonai-error-rgb: 181, 58, 63;
  --reonai-warning-rgb: 211, 163, 38;
  --reonai-border-rgb: 216, 210, 202;
}

.dark {
  --reonai-surface-rgb: 29, 27, 26;
  --reonai-bg-rgb: 21, 19, 19;
  --reonai-error-rgb: 193, 90, 94;
  --reonai-warning-rgb: 217, 178, 58;
  --reonai-border-rgb: 43, 40, 38;
}

/* =========================================================
   CHATGPT-STYLE NAVBAR
   ========================================================= */

.chatgpt-nav {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.dark .chatgpt-nav {
  background: rgba(21, 19, 19, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chatgpt-nav-links a,
.chatgpt-nav-links button {
  position: relative;
  color: var(--reonai-text-primary);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.chatgpt-nav-links a:hover,
.chatgpt-nav-links button:hover {
  background-color: var(--reonai-surface);
}

.dark .chatgpt-nav-links a:hover,
.dark .chatgpt-nav-links button:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

/* ChatGPT Dropdown */
.chatgpt-dropdown {
  position: absolute;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  padding: 1rem;
  width: 320px;
  margin-top: 1rem;
  z-index: 1000;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.2s ease;
}

.chatgpt-dropdown.show {
  opacity: 1;
  transform: translateY(0);
}

.chatgpt-dropdown.hidden {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.dark .chatgpt-dropdown {
  background: rgba(29, 27, 26, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.chatgpt-dropdown-category {
  color: var(--reonai-text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--reonai-border);
}

.chatgpt-dropdown-item {
  display: block;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
  color: var(--reonai-text-primary);
}

.chatgpt-dropdown-item:last-of-type {
  margin-bottom: 0;
}

.chatgpt-dropdown-item:hover {
  background-color: var(--reonai-surface);
}

.dark .chatgpt-dropdown-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.chatgpt-dropdown-item div:first-child {
  color: var(--reonai-text-primary);
  font-weight: 500;
}

.chatgpt-dropdown-item div:last-child {
  color: var(--reonai-text-secondary);
  margin-top: 0.375rem;
}

/* ChatGPT CTA Button */
.chatgpt-cta-btn {
  background: var(--reonai-primary);
  color: white;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  border: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.chatgpt-cta-btn:hover {
  background: var(--reonai-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(142, 30, 35, 0.3);
}

.dark .chatgpt-cta-btn {
  box-shadow: 0 4px 12px rgba(142, 30, 35, 0.4);
}

.chatgpt-cta-btn:active {
  transform: translateY(0);
}

/* Mobile Dropdown (full width) */
@media (max-width: 767px) {
  .chatgpt-dropdown {
    position: static;
    width: 100%;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
  }
}

/* =========================================================
   FEY-STYLE NAVIGATION
   Clean, minimal navigation inspired by fey.com
   ========================================================= */

/* Fey Navbar Base */
.fey-nav {
  background: rgba(var(--reonai-surface-rgb), 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(var(--reonai-border-rgb), 0.5);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .fey-nav {
  background: rgba(var(--reonai-surface-rgb), 0.85);
  border-bottom: 1px solid rgba(var(--reonai-border-rgb), 0.6);
}

.fey-nav.scrolled {
  background: rgba(var(--reonai-surface-rgb), 0.95);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.dark .fey-nav.scrolled {
  background: rgba(var(--reonai-surface-rgb), 0.98);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* Fey Logo */
.fey-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

/* Fey Nav Links */
.fey-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.fey-nav-links li {
  display: inline-block;
}

.fey-nav-link {
  position: relative;
  color: var(--reonai-text-primary);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.625rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.fey-nav-link:hover {
  background-color: rgba(var(--reonai-primary-rgb), 0.08);
  color: var(--reonai-primary);
}

.dark .fey-nav-link:hover {
  background-color: rgba(var(--reonai-primary-rgb), 0.12);
}

/* Fey Theme Toggle */
/* AI Assistant Toggle Button */
.fey-ai-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--reonai-border);
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  font-size: 14px;
  font-weight: 500;
}

.fey-ai-toggle:hover {
  background-color: var(--reonai-bg);
  border-color: var(--reonai-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--reonai-shadow);
}

.fey-ai-toggle:active {
  transform: translateY(0);
}

.dark .fey-ai-toggle {
  background-color: var(--reonai-surface);
  border-color: var(--reonai-border);
}

.dark .fey-ai-toggle:hover {
  background-color: var(--reonai-bg);
  border-color: var(--reonai-accent);
}

/* Mobile AI Assistant Button */
.fey-mobile-ai {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--reonai-border);
  background-color: var(--reonai-surface);
  color: var(--reonai-text-primary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 12px;
}

.fey-mobile-ai:hover {
  background-color: var(--reonai-bg);
  border-color: var(--reonai-accent);
  transform: translateX(4px);
}

.dark .fey-mobile-ai {
  background-color: var(--reonai-surface);
  border-color: var(--reonai-border);
}

.dark .fey-mobile-ai:hover {
  background-color: var(--reonai-bg);
  border-color: var(--reonai-accent);
}

.fey-theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  background: transparent;
  border: none;
  transition: all 0.2s ease;
}

.fey-theme-toggle:hover {
  background-color: rgba(var(--reonai-primary-rgb), 0.08);
}

/* Fey CTA Button */
.fey-cta-btn {
  background: linear-gradient(
    135deg,
    var(--reonai-primary),
    var(--reonai-primary-hover)
  );
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
  border-radius: 8px;
  border: none;
  transition: all 0.2s ease;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(var(--reonai-primary-rgb), 0.2);
  white-space: nowrap;
  flex-shrink: 0;
}

.login-btn {
  flex-shrink: 0;
}

.fey-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--reonai-primary-rgb), 0.3);
}

.fey-cta-btn:active {
  transform: translateY(0);
}

/* Fey User Button */
.fey-user-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--reonai-border);
  color: var(--reonai-text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.fey-user-btn:hover {
  background-color: var(--reonai-surface);
}

/* Fey Hamburger (Mobile) */
.fey-hamburger {
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.2s ease;
  position: relative;
  z-index: 1;
}

.fey-hamburger:hover,
.fey-hamburger:focus-visible {
  background-color: rgba(var(--reonai-primary-rgb), 0.08);
}

.fey-hamburger-icon {
  width: 20px;
  height: 14px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.fey-hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--reonai-text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.fey-hamburger.open .fey-hamburger-line:first-child {
  transform: rotate(45deg) translateY(6px);
}

.fey-hamburger.open .fey-hamburger-line:last-child {
  transform: rotate(-45deg) translateY(-6px);
}

/* Keep hamburger above fullscreen overlay so it can close */
body.menu-open #mainNav {
  z-index: 9100;
}

body.menu-open #mainNav.fey-nav {
  background: var(--reonai-bg, #fff);
  border-bottom: 1px solid var(--reonai-border, #e5e5e5);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}

.dark body.menu-open #mainNav.fey-nav {
  background: #121212;
  border-bottom-color: rgba(243, 240, 235, 0.12);
}

/* Fey Mobile Overlay */
.fey-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--reonai-bg, #fff);
  z-index: 9000;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  animation: feyFadeIn 0.2s ease;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.dark .fey-mobile-overlay {
  background: #121212;
}

/* 로그인 모달은 모바일 메뉴보다 위에 표시 */
#loginModal {
  z-index: 10000 !important;
}

@keyframes feyFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fey-mobile-overlay.hidden {
  display: none;
}

.fey-mobile-topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: calc(0.65rem + env(safe-area-inset-top, 0px)) 1.15rem 0.65rem;
  background: color-mix(in srgb, var(--reonai-bg, #fff) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--reonai-border, #e5e5e5);
}

.dark .fey-mobile-topbar {
  background: color-mix(in srgb, #121212 92%, transparent);
  border-bottom-color: rgba(243, 240, 235, 0.12);
}

.fey-mobile-topbar-brand {
  font-family: "Outfit", "Noto Sans KR", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  color: var(--reonai-primary, #8e1e23);
}

.dark .fey-mobile-topbar-brand {
  color: #f3f0eb;
}

.fey-mobile-close {
  min-height: 44px;
  padding: 0 0.85rem;
  border-radius: 0.55rem;
  border: 1px solid var(--reonai-border, #e5e5e5);
  background: transparent;
  color: var(--reonai-text-primary, #1a1a1a);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.fey-mobile-close:hover,
.fey-mobile-close:focus-visible {
  border-color: var(--reonai-primary, #8e1e23);
  color: var(--reonai-primary, #8e1e23);
}

.fey-mobile-container {
  max-width: 480px;
  margin: 0 auto;
  padding: 1.15rem 1.15rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.fey-mobile-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.fey-mobile-section {
  margin: 0.85rem 0 0.2rem;
  padding: 0 0.35rem;
  font-family: "Outfit", "Noto Sans KR", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--reonai-primary, #8e1e23);
}

.fey-mobile-links > li:first-child .fey-mobile-section {
  margin-top: 0.15rem;
}

.fey-mobile-subsection {
  margin: 0.45rem 0 0.1rem;
  padding: 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--reonai-text-secondary, #6b6b6b);
}

.fey-mobile-divider {
  height: 1px;
  margin: 0.75rem 0.35rem;
  background: var(--reonai-border, #e5e5e5);
}

.fey-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 48px;
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  color: var(--reonai-text-primary);
  font-size: 1.05rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.fey-mobile-link--sub {
  min-height: 44px;
  padding-left: 1.35rem;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--reonai-text-primary);
}

.fey-mobile-link:hover,
.fey-mobile-link:focus-visible {
  background-color: rgba(var(--reonai-primary-rgb), 0.08);
}

.fey-mobile-link.is-soon {
  color: var(--reonai-text-secondary, #6b6b6b);
  opacity: 0.9;
}

.fey-mobile-soon {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--reonai-text-secondary, #6b6b6b);
  border: 1px solid var(--reonai-border, #e5e5e5);
  border-radius: 999px;
  padding: 0.15rem 0.5rem;
}

.fey-mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--reonai-border);
}

.fey-mobile-ai {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: var(--reonai-surface, #fafafa);
  border: 1px solid var(--reonai-border);
  color: var(--reonai-text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.fey-mobile-theme {
  width: 100%;
  min-height: 48px;
  padding: 0.85rem;
  border-radius: 12px;
  background: var(--reonai-surface);
  border: 1px solid var(--reonai-border);
  font-size: 1.35rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fey-mobile-theme:hover {
  background-color: rgba(var(--reonai-primary-rgb), 0.08);
}

.fey-mobile-lang {
  width: 100%;
}

.fey-mobile-cta {
  width: 100%;
}

.fey-mobile-cta .fey-cta-btn {
  min-height: 48px;
  width: 100%;
}

/* Prevent body scroll when mobile menu is open */
body.menu-open {
  overflow: hidden;
}

/* Mobile responsive adjustments */
@media (max-width: 767px) {
  .fey-nav {
    min-height: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fey-mobile-overlay {
    animation: none;
  }

  .fey-hamburger-line,
  .fey-mobile-link {
    transition: none;
  }
}