/* ==========================================================================
   گام ۱۱ (Gaam11) — Liquid Obsidian Glass Study OS
   Designed for Iranian 11th Graders (نهایی + کنکور)
   Local-First • Sovereign • Dark Glassmorphic
   ========================================================================== */

@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/Vazirmatn-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/Vazirmatn-Medium.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/Vazirmatn-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('/fonts/Vazirmatn-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Geist';
  src: url('/fonts/Geist-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Geist';
  src: url('/fonts/Geist-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'GeistMono';
  src: url('/fonts/GeistMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'GeistMono';
  src: url('/fonts/GeistMono-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

:root {
  --font-persian: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, sans-serif;
  --font-mono: 'GeistMono', 'Geist', monospace;

  /* Obsidian Liquid Glass Palette */
  --bg-deep: #050508;
  --bg-surface: #0a0a0f;
  --bg-card: rgba(20, 20, 26, 0.72);
  --bg-card-solid: #15151c;
  --bg-card-hover: rgba(30, 30, 38, 0.85);

  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-light: rgba(255, 255, 255, 0.16);
  --glass-blur: blur(24px) saturate(190%);

  --text-primary: #ffffff;
  --text-secondary: rgba(235, 235, 245, 0.7);
  --text-tertiary: rgba(235, 235, 245, 0.42);

  /* Functional Accents */
  --accent-konkur: #0A84FF;       /* Apple Blue */
  --accent-konkur-glow: rgba(10, 132, 255, 0.35);
  --accent-nahayi: #BF5AF2;       /* Apple Purple */
  --accent-nahayi-glow: rgba(191, 90, 242, 0.35);
  --accent-success: #30D158;      /* Apple Green */
  --accent-success-glow: rgba(48, 209, 88, 0.35);
  --accent-warning: #FF9F0A;      /* Apple Amber */
  --accent-danger: #FF453A;       /* Apple Red */
  --accent-cyan: #64D2FF;

  /* Spring Physics Curves */
  --spring-snappy: cubic-bezier(0.16, 1, 0.3, 1);
  --spring-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --spring-smooth: cubic-bezier(0.32, 0.72, 0, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-deep);
  background-image: 
    radial-gradient(ellipse at 50% -10%, rgba(10, 132, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 90% 40%, rgba(191, 90, 242, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 10% 90%, rgba(48, 209, 88, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
  font-family: var(--font-persian);
  color: var(--text-primary);
  direction: rtl;
  text-align: right;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Container */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 20px 80px 20px;
}

/* Header & Glass Top Bar */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 12px 24px;
  margin-bottom: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  position: sticky;
  top: 16px;
  z-index: 50;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0A84FF 0%, #BF5AF2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 4px 16px rgba(10, 132, 255, 0.4);
}

.brand-info h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(191, 90, 242, 0.2);
  border: 1px solid rgba(191, 90, 242, 0.4);
  color: #e5a7ff;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-tertiary);
}

.top-middle-clock {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.live-shamsi-date {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.live-digital-time {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 1px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  font-family: var(--font-persian);
  font-size: 13px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s var(--spring-snappy);
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-konkur), #0060df);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-konkur-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2b95ff, #0a84ff);
  box-shadow: 0 6px 20px var(--accent-konkur-glow);
}

.btn-nahayi {
  background: linear-gradient(135deg, var(--accent-nahayi), #9a3cd0);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-nahayi-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-nahayi:hover {
  background: linear-gradient(135deg, #d07afc, #bf5af2);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--glass-border-light);
}

.btn-timer-trigger {
  background: rgba(100, 210, 255, 0.1);
  border: 1px solid rgba(100, 210, 255, 0.3);
  color: var(--accent-cyan);
}
.btn-timer-trigger:hover {
  background: rgba(100, 210, 255, 0.2);
}

/* Nav Tabs */
.nav-tabs {
  display: flex;
  gap: 8px;
  background: rgba(16, 16, 22, 0.6);
  backdrop-filter: var(--glass-blur);
  padding: 6px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-persian);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.22s var(--spring-snappy);
  white-space: nowrap;
}

.tab-icon-wrap {
  font-size: 16px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tab-label {
  font-size: 13px;
}

.tab-badge-dot {
  position: absolute;
  top: -6px;
  left: -8px;
  background: var(--accent-warning);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  min-width: 16px;
  height: 16px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}

.tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

/* Panes */
.tab-pane {
  display: none;
  animation: fadeIn 0.28s var(--spring-snappy);
}
.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Interactive Liquid Mouse Glow Spotlight */
.cursor-glow-spotlight {
  position: fixed;
  top: 0;
  left: 0;
  width: 600px;
  height: 600px;
  margin-left: -300px;
  margin-top: -300px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle, rgba(10, 132, 255, 0.16) 0%, rgba(191, 90, 242, 0.08) 45%, transparent 70%);
  filter: blur(55px);
  opacity: 0;
  transition: opacity 0.4s ease;
  will-change: transform;
}

/* Glass Card with Dynamic Hover Spotlight */
.glass-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  margin-bottom: 24px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.glass-card::after {
  content: '';
  position: absolute;
  top: var(--card-mouse-y, -999px);
  left: var(--card-mouse-x, -999px);
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(10, 132, 255, 0.09) 0%, rgba(191, 90, 242, 0.04) 50%, transparent 80%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.glass-card:hover::after {
  opacity: 1;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 12px;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Milestone Countdowns Grid */
.milestones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.milestone-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.milestone-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
}
.milestone-nahayi::before {
  background: var(--accent-nahayi);
  box-shadow: 0 0 12px var(--accent-nahayi);
}
.milestone-konkur::before {
  background: var(--accent-konkur);
  box-shadow: 0 0 12px var(--accent-konkur);
}
.milestone-exam::before {
  background: var(--accent-warning);
  box-shadow: 0 0 12px var(--accent-warning);
}

.milestone-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}
.milestone-desc {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.milestone-days {
  text-align: left;
}
.milestone-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
}
.milestone-unit {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Vitals Cards Grid */
.vitals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.vital-box {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 18px 20px;
  position: relative;
}

.vital-icon-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
}

.vital-value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.vital-subtext {
  font-family: var(--font-persian);
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 400;
}

.vital-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  margin-top: 12px;
  overflow: hidden;
}

.vital-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-konkur), #58a6ff);
  transition: width 0.4s ease;
}

/* Motivation Banner */
.motivation-banner {
  background: linear-gradient(135deg, rgba(191, 90, 242, 0.15) 0%, rgba(10, 132, 255, 0.1) 100%);
  border: 1px solid rgba(191, 90, 242, 0.3);
  border-radius: 18px;
  padding: 16px 22px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.motivation-icon {
  font-size: 32px;
}

.motivation-content h4 {
  font-size: 14px;
  color: #f1c9ff;
  font-weight: 700;
  margin-bottom: 4px;
}

.motivation-content p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Today's Dual Ratio Box */
.dual-ratio-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.ratio-bar {
  display: flex;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}
.ratio-fill-nahayi {
  background: var(--accent-nahayi);
  transition: width 0.3s ease;
}
.ratio-fill-konkur {
  background: var(--accent-konkur);
  transition: width 0.3s ease;
}
.ratio-fill-review {
  background: var(--accent-warning);
  transition: width 0.3s ease;
}

.ratio-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-tertiary);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}
.badge-nahayi {
  background: rgba(191, 90, 242, 0.15);
  color: #df9bff;
  border: 1px solid rgba(191, 90, 242, 0.3);
}
.badge-konkur {
  background: rgba(10, 132, 255, 0.15);
  color: #70b4ff;
  border: 1px solid rgba(10, 132, 255, 0.3);
}
.badge-timed {
  background: rgba(100, 210, 255, 0.15);
  color: #93e2ff;
  border: 1px solid rgba(100, 210, 255, 0.3);
}
.badge-review {
  background: rgba(255, 159, 10, 0.15);
  color: #ffd080;
  border: 1px solid rgba(255, 159, 10, 0.3);
}

/* Study Logs Table / Cards */
.logs-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.log-item-card {
  background: rgba(26, 26, 34, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.log-item-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(32, 32, 42, 0.7);
  transform: translateY(-2px);
}

.log-main-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.log-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.log-subject-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}

.log-topic {
  font-size: 13px;
  color: var(--text-secondary);
}

.log-metrics-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.log-metric-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.metric-highlight {
  font-family: var(--font-mono);
  font-weight: 600;
  color: #fff;
}

.log-accuracy-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 12px;
}
.accuracy-high {
  background: rgba(48, 209, 88, 0.2);
  color: #4cd964;
  border: 1px solid rgba(48, 209, 88, 0.4);
}
.accuracy-mid {
  background: rgba(255, 159, 10, 0.2);
  color: #ffb340;
  border: 1px solid rgba(255, 159, 10, 0.4);
}
.accuracy-low {
  background: rgba(255, 69, 58, 0.2);
  color: #ff6961;
  border: 1px solid rgba(255, 69, 58, 0.4);
}

.log-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon-danger {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: all 0.15s ease;
}
.btn-icon-danger:hover {
  color: var(--accent-danger);
  background: rgba(255, 69, 58, 0.15);
}

/* Leitner Review Stations */
.leitner-stages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.leitner-stage-box {
  background: rgba(22, 22, 28, 0.7);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 16px;
  text-align: center;
}

.stage-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.stage-subtitle {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}
.stage-count {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-warning);
  margin: 8px 0;
}

.leitner-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.leitner-item-row {
  background: rgba(26, 26, 32, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all 0.2s ease;
}

.leitner-item-row.is-done {
  opacity: 0.5;
  border-color: rgba(48, 209, 88, 0.2);
}

.leitner-check-btn {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  transition: all 0.18s ease;
}
.leitner-check-btn.checked {
  background: var(--accent-success);
  border-color: var(--accent-success);
  color: #fff;
}

/* Exam Mock Analysis */
.exams-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 18px;
}

.exam-card {
  background: rgba(24, 24, 32, 0.75);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 20px;
}

.exam-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.exam-taraz-badge {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-konkur);
  background: rgba(10, 132, 255, 0.15);
  padding: 4px 12px;
  border-radius: 8px;
  border: 1px solid rgba(10, 132, 255, 0.3);
}

.exam-subject-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin-bottom: 14px;
}
.exam-subject-table th, .exam-subject-table td {
  padding: 6px 8px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.exam-subject-table th:first-child, .exam-subject-table td:first-child {
  text-align: right;
}

.exam-insights-box {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 12px;
  padding: 12px;
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.insight-item strong {
  color: #ffd080;
}

/* Premium Floating Glass Toast */
.app-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translate(-50%, -40px) scale(0.95);
  background: rgba(22, 22, 28, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(24px) saturate(190%);
  -webkit-backdrop-filter: blur(24px) saturate(190%);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  transition: all 0.28s var(--spring-snappy);
}
.app-toast.active {
  transform: translate(-50%, 0) scale(1);
  opacity: 1;
  pointer-events: auto;
}
.app-toast.error {
  border-color: rgba(255, 69, 58, 0.4);
  background: rgba(36, 16, 16, 0.92);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s var(--spring-snappy);
}

.modal-window {
  background: var(--bg-card-solid);
  border: 1px solid var(--glass-border-light);
  border-radius: 24px;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  padding: 26px;
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.15s ease;
}
.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(20, 20, 28, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-persian);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-konkur);
  box-shadow: 0 0 16px var(--accent-konkur-glow);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}
.form-row-4 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 8px;
}

/* Radio Cards */
.radio-cards-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 8px;
}
.radio-card-label {
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  padding: 8px;
  text-align: center;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s ease;
  user-select: none;
}
.radio-card-label input {
  display: none;
}
.radio-card-label:has(input:checked) {
  border-color: var(--accent-konkur);
  background: rgba(10, 132, 255, 0.18);
  color: #fff;
  font-weight: 600;
}

/* Focus Pomodoro Timer Overlay */
.timer-modal {
  text-align: center;
}
.timer-display {
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 700;
  color: #fff;
  margin: 20px 0;
  text-shadow: 0 0 30px rgba(100, 210, 255, 0.4);
}
.timer-mode-pills {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.timer-pill {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
}
.timer-pill.active {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
}

/* Weekly Chart Container */
.chart-container {
  width: 100%;
  height: 240px;
  position: relative;
  margin-top: 16px;
}

/* Print Sheet */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .top-nav, .nav-tabs, .top-actions, .btn, .modal-overlay {
    display: none !important;
  }
  .app-container {
    max-width: 100% !important;
    padding: 0 !important;
  }
  .glass-card {
    background: #ffffff !important;
    border: 1px solid #cccccc !important;
    box-shadow: none !important;
    color: #000000 !important;
  }
  .vital-value, .card-title, .log-subject-name {
    color: #000000 !important;
  }
}

/* Responsive adjustments for Mobile & Tablets */
@media (max-width: 768px) {
  .app-container {
    padding: 10px 12px 105px 12px; /* ample space for fixed bottom bar */
  }

  /* Compact Header on Mobile */
  .top-nav {
    flex-direction: column;
    align-items: stretch;
    padding: 10px 14px;
    gap: 10px;
    border-radius: 16px;
    margin-bottom: 14px;
    position: static;
  }

  .brand-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .brand-logo-icon {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

  .brand-info h1 {
    font-size: 16px;
  }

  .brand-badge {
    font-size: 10px;
  }

  .brand-subtitle {
    font-size: 11px;
  }

  .top-middle-clock {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 10px;
  }

  .live-shamsi-date {
    font-size: 12px;
  }

  .live-digital-time {
    font-size: 13px;
  }

  .top-actions {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr;
    gap: 8px;
  }

  .top-actions .btn {
    padding: 9px 6px;
    font-size: 11px;
    border-radius: 10px;
    white-space: nowrap;
  }

  /* Native Mobile Bottom Navigation Bar (5 tabs) */
  .nav-tabs {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    margin-bottom: 0;
    border-radius: 20px 20px 0 0;
    border-bottom: none;
    border-left: none;
    border-right: none;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(14, 14, 18, 0.95);
    backdrop-filter: blur(28px) saturate(200%);
    -webkit-backdrop-filter: blur(28px) saturate(200%);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.7);
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px)) 10px;
    display: flex;
    justify-content: space-around;
    gap: 4px;
    overflow-x: hidden;
  }

  .tab-btn {
    flex: 1;
    min-width: 0;
    max-width: 72px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 2px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    transition: all 0.18s ease;
  }

  .tab-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--text-tertiary);
    transition: color 0.18s ease, transform 0.18s ease;
  }

  .tab-icon-wrap svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    display: block;
  }

  .tab-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: -0.2px;
    white-space: nowrap;
    color: var(--text-tertiary);
    transition: color 0.18s ease;
  }

  .tab-btn.active {
    background: rgba(10, 132, 255, 0.15);
  }

  .tab-btn.active .tab-icon-wrap {
    color: var(--accent-konkur);
    transform: translateY(-1px);
  }

  .tab-btn.active .tab-icon-wrap svg {
    stroke: var(--accent-konkur);
  }

  .tab-btn.active .tab-label {
    color: #fff;
    font-weight: 700;
  }

  .tab-badge-dot {
    position: absolute;
    top: -3px;
    right: -8px;
    background: var(--accent-warning);
    color: #000;
    font-size: 9px;
    font-weight: 800;
    min-width: 14px;
    height: 14px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
    line-height: 1;
  }

  .milestones-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 16px;
  }

  .milestone-card {
    padding: 12px 16px;
    border-radius: 14px;
  }

  .milestone-number {
    font-size: 22px;
  }

  .vitals-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
  }

  .vital-box {
    padding: 12px 14px;
    border-radius: 14px;
  }

  .vital-value {
    font-size: 22px;
  }

  .glass-card {
    padding: 16px;
    border-radius: 16px;
    margin-bottom: 16px;
  }

  .log-item-card {
    flex-direction: column;
    align-items: stretch;
    padding: 12px 14px;
    gap: 10px;
  }

  .form-row-2, .form-row-3, .form-row-4 {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Bottom sheet modal on mobile */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal-window {
    border-radius: 22px 22px 0 0;
    max-height: 88vh;
    padding: 20px 16px;
    border-bottom: none;
  }
}

/* ==========================================================================
   AI Study Advisor (مشاور هوشمند تحصیلی) — Obsidian Glass Styling
   ========================================================================== */

.floating-advisor-fab {
  position: fixed;
  bottom: 84px;
  left: 20px;
  z-index: 950;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(25, 20, 36, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(191, 90, 242, 0.4);
  border-radius: 9999px;
  color: #fff;
  font-family: var(--font-persian);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(191, 90, 242, 0.25), 0 0 1px 1px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s var(--spring-bounce), box-shadow 0.3s ease, border-color 0.3s ease;
}

.floating-advisor-fab:hover {
  transform: translateY(-3px) scale(1.04);
  border-color: rgba(191, 90, 242, 0.8);
  box-shadow: 0 14px 40px rgba(191, 90, 242, 0.45);
}

.floating-advisor-fab:active {
  transform: translateY(0) scale(0.96);
}

.floating-advisor-fab .fab-icon {
  font-size: 18px;
  animation: pulse-spin 6s ease-in-out infinite;
}

@keyframes pulse-spin {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.advisor-container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.advisor-header-card {
  padding: 18px 22px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(30, 24, 45, 0.85) 0%, rgba(15, 15, 22, 0.85) 100%);
  border: 1px solid rgba(191, 90, 242, 0.25);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.advisor-avatar-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.advisor-avatar {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: radial-gradient(circle at 30% 30%, #BF5AF2 0%, #5E5CE6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 0 20px rgba(191, 90, 242, 0.4);
}

.advisor-avatar::after {
  content: '';
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  background: var(--accent-success);
  border: 2px solid var(--bg-deep);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-success);
}

.advisor-title-group h2 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.advisor-title-group p {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.advisor-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(48, 209, 88, 0.12);
  border: 1px solid rgba(48, 209, 88, 0.3);
  border-radius: 9999px;
  font-size: 11px;
  color: var(--accent-success);
  font-weight: 500;
}

.advisor-model-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(191, 90, 242, 0.12);
  border: 1px solid rgba(191, 90, 242, 0.3);
  border-radius: 9999px;
  font-size: 11px;
  color: var(--accent-nahayi);
  font-family: var(--font-mono);
  font-weight: 600;
}

.advisor-live-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.advisor-live-card {
  padding: 10px 14px;
  background: rgba(18, 18, 24, 0.65);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.advisor-live-card .icon {
  font-size: 18px;
  padding: 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
}

.advisor-live-card .label {
  font-size: 11px;
  color: var(--text-tertiary);
}

.advisor-live-card .val {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.advisor-chips-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.advisor-chips-row::-webkit-scrollbar {
  display: none;
}

.advisor-chip {
  flex-shrink: 0;
  padding: 8px 14px;
  background: rgba(25, 25, 34, 0.7);
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.advisor-chip:hover {
  background: rgba(191, 90, 242, 0.15);
  border-color: rgba(191, 90, 242, 0.4);
  color: #fff;
  transform: translateY(-1px);
}

.advisor-chat-window {
  min-height: 420px;
  max-height: 62vh;
  overflow-y: auto;
  padding: 16px 12px;
  background: rgba(10, 10, 15, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.advisor-msg-row {
  display: flex;
  gap: 12px;
  max-width: 88%;
}

.advisor-msg-row.user {
  align-self: flex-start; /* RTL: start is right */
  flex-direction: row;
}

.advisor-msg-row.model {
  align-self: flex-end; /* RTL: end is left */
  max-width: 94%;
  width: 100%;
}

.advisor-msg-avatar {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
  margin-top: 2px;
}

.advisor-msg-row.user .advisor-msg-avatar {
  background: rgba(10, 132, 255, 0.25);
  border: 1px solid rgba(10, 132, 255, 0.4);
}

.advisor-msg-row.model .advisor-msg-avatar {
  background: rgba(191, 90, 242, 0.25);
  border: 1px solid rgba(191, 90, 242, 0.4);
}

.advisor-msg-content {
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  word-break: break-word;
}

.advisor-msg-row.user .advisor-msg-content {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.2) 0%, rgba(30, 30, 45, 0.8) 100%);
  border: 1px solid rgba(10, 132, 255, 0.35);
  color: #fff;
  border-top-right-radius: 4px;
}

.advisor-msg-row.model .advisor-msg-content {
  background: rgba(18, 18, 25, 0.85);
  border: 1px solid var(--glass-border);
  color: rgba(245, 245, 250, 0.95);
  border-top-left-radius: 4px;
  width: 100%;
}

.advisor-msg-content p {
  margin-bottom: 8px;
}

.advisor-msg-content p:last-child {
  margin-bottom: 0;
}

.advisor-msg-content ul, .advisor-msg-content ol {
  margin: 6px 18px 10px 18px;
}

.advisor-msg-content li {
  margin-bottom: 4px;
}

.advisor-msg-content strong {
  color: #fff;
  font-weight: 600;
}

.advisor-action-card {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(48, 209, 88, 0.08);
  border: 1px solid rgba(48, 209, 88, 0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.advisor-action-card .action-text {
  font-size: 12px;
  color: var(--accent-success);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

.advisor-msg-time {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 4px;
  text-align: left;
  direction: ltr;
  font-family: var(--font-mono);
}

.advisor-input-dock {
  position: sticky;
  bottom: 16px;
  z-index: 90;
  background: rgba(18, 18, 26, 0.94);
  backdrop-filter: blur(24px) saturate(190%);
  border: 1px solid var(--glass-border-light);
  border-radius: 20px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.65), 0 0 1px 1px rgba(255, 255, 255, 0.08);
}

.advisor-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.advisor-textarea {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  font-family: var(--font-persian);
  font-size: 14px;
  resize: none;
  min-height: 44px;
  max-height: 140px;
  padding: 8px 6px;
  outline: none;
  line-height: 1.6;
}

.advisor-textarea::placeholder {
  color: var(--text-tertiary);
}

.advisor-send-btn {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, #BF5AF2 0%, #0A84FF 100%);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.2s var(--spring-bounce), box-shadow 0.2s ease;
  box-shadow: 0 4px 15px rgba(191, 90, 242, 0.35);
}

.advisor-send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(191, 90, 242, 0.55);
}

.advisor-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.advisor-typing-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(18, 18, 25, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  width: fit-content;
}

.advisor-typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-nahayi);
  animation: typing-bounce 1.4s infinite ease-in-out both;
}

.advisor-typing-dot:nth-child(1) { animation-delay: -0.32s; }
.advisor-typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing-bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}