/**
 * /students/_ui/dh-macos.css
 * 다힘 국어 학생 포털 — macOS Sonoma / Sequoia 하이엔드 디자인 시스템
 *   - macOS Traffic Light 윈도우 컨트롤 (Red / Yellow / Green 주얼 버튼 & 호버 심볼)
 *   - 초정밀 아크릴 블러 & 프로스티드 글래스 (Vibrancy & Frosted Glass)
 *   - Apple SF Pro / Pretendard 기반 타이포그래피 & 커닝
 *   - macOS 스쿼클 카드 (Continuous Corner Smoothing & Inset Specular Rim)
 *   - macOS 세그먼트 컨트롤 (Pill Segmented Controls with Elevated Slider)
 *   - macOS 오버레이 슬림 캡슐 스크롤바
 *   - 햅틱 프레스 & 스프링 애니메이션 (Spring Micro-interactions)
 */

:root {
  --macos-font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Pretendard Variable", Pretendard, system-ui, sans-serif;
  --macos-font-mono: "SF Mono", "SF Pro Display", Menlo, Monaco, Consolas, monospace;
  
  /* macOS Light Palette */
  --macos-bg-canvas: #f5f5f7;
  --macos-bg-acrylic: rgba(255, 255, 255, 0.78);
  --macos-bg-card: rgba(255, 255, 255, 0.85);
  --macos-bg-card-hover: rgba(255, 255, 255, 0.95);
  --macos-bg-elevated: #ffffff;
  --macos-bg-track: rgba(142, 142, 147, 0.12);
  --macos-bg-track-active: #ffffff;
  
  /* Borders & Highlights */
  --macos-border-outer: rgba(0, 0, 0, 0.08);
  --macos-border-inner: rgba(255, 255, 255, 0.85);
  --macos-border-separator: rgba(60, 60, 67, 0.12);
  
  /* Shadows */
  --macos-shadow-window: 0 24px 60px -12px rgba(0, 0, 0, 0.14), 0 8px 20px -4px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.06);
  --macos-shadow-card: 0 6px 20px -3px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --macos-shadow-card-hover: 0 14px 34px -4px rgba(15, 23, 42, 0.1), 0 4px 10px -2px rgba(15, 23, 42, 0.04), inset 0 1px 0 #ffffff;
  --macos-shadow-pill: 0 2px 8px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  
  /* Traffic Lights */
  --macos-tl-red: #ff5f56;
  --macos-tl-red-border: #e0443e;
  --macos-tl-red-icon: #4d0000;
  
  --macos-tl-yellow: #ffbd2e;
  --macos-tl-yellow-border: #dea123;
  --macos-tl-yellow-icon: #5f3f00;
  
  --macos-tl-green: #27c93f;
  --macos-tl-green-border: #1aab29;
  --macos-tl-green-icon: #003e00;
  
  /* Accents */
  --macos-blue: #0071e3;
  --macos-blue-hover: #0077ed;
  --macos-blue-active: #0062c4;
  --macos-text-primary: #1d1d1f;
  --macos-text-secondary: #6e6e73;
  --macos-text-tertiary: #86868b;
  
  /* Radii */
  --macos-r-xs: 6px;
  --macos-r-sm: 9px;
  --macos-r-md: 14px;
  --macos-r-lg: 18px;
  --macos-r-xl: 22px;
  --macos-r-window: 24px;
}

/* macOS Dark Mode 지원 */
[data-theme="dark"], body.dark, .dark-mode, .snav-dark {
  --macos-bg-canvas: #16171d;
  --macos-bg-acrylic: rgba(28, 32, 45, 0.82);
  --macos-bg-card: rgba(33, 38, 54, 0.85);
  --macos-bg-card-hover: rgba(40, 46, 65, 0.95);
  --macos-bg-elevated: #242938;
  --macos-bg-track: rgba(255, 255, 255, 0.1);
  --macos-bg-track-active: rgba(255, 255, 255, 0.18);
  
  --macos-border-outer: rgba(255, 255, 255, 0.12);
  --macos-border-inner: rgba(255, 255, 255, 0.08);
  --macos-border-separator: rgba(255, 255, 255, 0.1);
  
  --macos-shadow-window: 0 28px 70px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12);
  --macos-shadow-card: 0 8px 24px -4px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  --macos-shadow-card-hover: 0 16px 36px -4px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  --macos-shadow-pill: 0 2px 8px rgba(0, 0, 0, 0.4);
  
  --macos-text-primary: #f5f5f7;
  --macos-text-secondary: #a1a1a6;
  --macos-text-tertiary: #86868b;
}

/* ─────────────────────────────────────────────────────────────
   1. 글로벌 타이포그래피 & 기본 리셋
   ───────────────────────────────────────────────────────────── */
body {
  font-family: var(--macos-font) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.014em;
  color: var(--macos-text-primary);
}

h1, h2, h3, h4, .title, .heading {
  font-family: var(--macos-font) !important;
  letter-spacing: -0.022em;
  font-weight: 700;
}

/* ─────────────────────────────────────────────────────────────
   2. macOS Traffic Light 윈도우 컨트롤
   ───────────────────────────────────────────────────────────── */
.macos-traffic-lights {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  user-select: none;
  flex-shrink: 0;
  vertical-align: middle;
}

.macos-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: transform 0.15s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.15s ease;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.45), 0 1px 2px rgba(0, 0, 0, 0.1);
}

.macos-dot::after {
  content: '';
  opacity: 0;
  font-size: 8px;
  font-weight: 900;
  line-height: 1;
  transition: opacity 0.12s ease;
  pointer-events: none;
}

.macos-traffic-lights:hover .macos-dot::after {
  opacity: 0.75;
}

.macos-dot:active {
  transform: scale(0.9) !important;
  filter: brightness(0.9);
}

/* Red / Close */
.macos-dot.close,
.macos-close {
  background-color: var(--macos-tl-red);
  border: 1px solid var(--macos-tl-red-border);
}
.macos-dot.close::after,
.macos-close::after {
  content: '✕';
  color: var(--macos-tl-red-icon);
  font-size: 7px;
  transform: scale(0.85);
}

/* Yellow / Minimize */
.macos-dot.min,
.macos-minimize {
  background-color: var(--macos-tl-yellow);
  border: 1px solid var(--macos-tl-yellow-border);
}
.macos-dot.min::after,
.macos-minimize::after {
  content: '—';
  color: var(--macos-tl-yellow-icon);
  font-size: 8px;
  font-weight: bold;
  transform: translateY(-1px);
}

/* Green / Zoom / Fullscreen */
.macos-dot.zoom,
.macos-zoom {
  background-color: var(--macos-tl-green);
  border: 1px solid var(--macos-tl-green-border);
}
.macos-dot.zoom::after,
.macos-zoom::after {
  content: '＋';
  color: var(--macos-tl-green-icon);
  font-size: 8px;
  transform: scale(0.8);
}

/* ─────────────────────────────────────────────────────────────
   3. 헤더 및 상단 윈도우 바 (Window Topbar & Frosted Acrylic)
   ───────────────────────────────────────────────────────────── */
.snav-header,
.top-navbar,
.pl-topbar,
.j-mobile-topbar {
  background: var(--macos-bg-acrylic) !important;
  backdrop-filter: blur(28px) saturate(190%) contrast(102%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) contrast(102%) !important;
  border-bottom: 1px solid var(--macos-border-separator) !important;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.6) !important;
}

.snav-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 브랜드 영역에 macOS 감성 입히기 */
.snav-brand {
  font-family: var(--macos-font) !important;
  font-weight: 700 !important;
  letter-spacing: -0.02em !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 10px !important;
}

.snav-pro-badge {
  background: rgba(0, 113, 227, 0.12) !important;
  color: var(--macos-blue) !important;
  border: 1px solid rgba(0, 113, 227, 0.25) !important;
  border-radius: var(--macos-r-xs) !important;
  font-size: 0.68rem !important;
  font-weight: 800 !important;
  padding: 1px 6px !important;
  letter-spacing: 0.05em !important;
}

/* ─────────────────────────────────────────────────────────────
   4. macOS 스쿼클 카드 (Bento Grid, Dashboards, Panels)
   ───────────────────────────────────────────────────────────── */
.pl-card,
.bento-card,
.card,
.panel,
.dash-card,
.box,
.stat-card,
.quiz-card,
.journey-card,
.pm-gcard,
.daily-tile,
.sd4-card,
.mission-card,
.study-card,
.sq-card,
.wb-card,
.macos-card {
  border-radius: var(--macos-r-lg) !important;
  background: var(--macos-bg-card) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  border: 1px solid var(--macos-border-outer) !important;
  box-shadow: var(--macos-shadow-card) !important;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.22s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease !important;
}

.pl-card:hover,
.bento-card:hover,
.card:hover,
.stat-card:hover,
.journey-card:hover,
.pm-gcard:hover,
.daily-tile:hover,
.macos-card:hover {
  background: var(--macos-bg-card-hover) !important;
  box-shadow: var(--macos-shadow-card-hover) !important;
}

/* ─────────────────────────────────────────────────────────────
   5. macOS 세그먼트 컨트롤 (Segmented Control Tabs)
   ───────────────────────────────────────────────────────────── */
.pl-tabs,
.nav-tabs,
.sd-tabbar,
.tab-container,
.subtabs,
.pill-tabs,
.filter-tabs,
.btn-group.tabs,
.j-tabs,
.pt-tabs,
.macos-segmented {
  background: var(--macos-bg-track) !important;
  padding: 3px !important;
  border-radius: var(--macos-r-md) !important;
  border: 1px solid var(--macos-border-outer) !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 3px !important;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04) !important;
}

.pl-tabs button,
.nav-tabs .nav-link,
.sd-tabbar button,
.subtabs button,
.pill-tabs button,
.j-tabs .j-tab,
.macos-segmented-item {
  border-radius: var(--macos-r-sm) !important;
  border: none !important;
  font-family: var(--macos-font) !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--macos-text-secondary) !important;
  padding: 6px 14px !important;
  background: transparent !important;
  transition: all 0.18s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
  cursor: pointer !important;
  line-height: 1.3 !important;
}

.pl-tabs button.active,
.nav-tabs .nav-link.active,
.sd-tabbar button.active,
.subtabs button.active,
.pill-tabs button.active,
.j-tabs .j-tab.active,
.macos-segmented-item.active {
  background: var(--macos-bg-track-active) !important;
  color: var(--macos-text-primary) !important;
  font-weight: 700 !important;
  box-shadow: var(--macos-shadow-pill) !important;
}

/* ─────────────────────────────────────────────────────────────
   6. macOS 푸시 버튼 (Buttons & Actions)
   ───────────────────────────────────────────────────────────── */
.btn-primary,
.pl-btn-primary,
.macos-btn-primary {
  background: var(--macos-blue) !important;
  color: #ffffff !important;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  border-radius: var(--macos-r-sm) !important;
  font-weight: 600 !important;
  box-shadow: 0 2px 6px rgba(0, 113, 227, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.25) !important;
  transition: all 0.15s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
}

.btn-primary:hover,
.pl-btn-primary:hover {
  background: var(--macos-blue-hover) !important;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.35) !important;
  transform: translateY(-1px);
}

.btn-primary:active,
.pl-btn-primary:active,
button:active:not(.macos-dot) {
  transform: scale(0.97) !important;
}

.btn-secondary,
.btn-outline,
.pl-btn-ghost,
.macos-btn-secondary {
  border-radius: var(--macos-r-sm) !important;
  background: rgba(142, 142, 147, 0.1) !important;
  border: 1px solid var(--macos-border-outer) !important;
  color: var(--macos-text-primary) !important;
  font-weight: 600 !important;
  transition: all 0.15s ease !important;
}

.btn-secondary:hover,
.pl-btn-ghost:hover {
  background: rgba(142, 142, 147, 0.18) !important;
}

/* ─────────────────────────────────────────────────────────────
   7. macOS 오버레이 캡슐 스크롤바
   ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(140, 140, 145, 0.32);
  border-radius: 999px;
  border: 1.5px solid transparent;
  background-clip: content-box;
  transition: background-color 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(140, 140, 145, 0.6);
}

* {
  scrollbar-width: thin;
  scrollbar-color: rgba(140, 140, 145, 0.35) transparent;
}

/* ─────────────────────────────────────────────────────────────
   8. macOS 윈도우 프레임 & 모달 시트 (Window Frame & Modal Sheets)
   ───────────────────────────────────────────────────────────── */
.modal-box,
.modal-content,
.macos-window {
  border-radius: var(--macos-r-window) !important;
  border: 1px solid var(--macos-border-outer) !important;
  box-shadow: var(--macos-shadow-window) !important;
  background: var(--macos-bg-canvas) !important;
  overflow: hidden;
}

.modal-header,
.macos-window-header {
  background: var(--macos-bg-acrylic) !important;
  backdrop-filter: blur(24px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
  border-bottom: 1px solid var(--macos-border-separator) !important;
  padding: 12px 18px !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ─────────────────────────────────────────────────────────────
   9. 반응형 최적화
   ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .macos-traffic-lights {
    gap: 6px;
    padding: 2px 4px;
  }
  .macos-dot {
    width: 10px;
    height: 10px;
  }
}