/* ================================================================
   app.css — Habiba Nabil English Academy — Master Stylesheet
   Supports: Light mode, Dark mode, LTR (English), RTL (Arabic)
   ================================================================ */

/* ── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=DM+Sans:wght@400;500;700;800&display=swap');

/* ── CSS Custom Properties (Light Mode Defaults) ──────────────── */
:root {
  /* Backgrounds */
  --bg: #f5f7fb;
  --bg-alt: #eef1f7;
  --card: #ffffff;
  --card-hover: #fafbff;

  /* Text */
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --muted-light: #94a3b8;

  /* Borders & Shadows */
  --border: rgba(15, 23, 42, 0.09);
  --border-soft: rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, .08);
  --shadow-lg: 0 8px 32px rgba(15, 23, 42, .10);

  /* Accent / Brand — Habiba Nabil teal palette */
  --accent: #0d4f4f;
  --accent-2: #1a6b5a;
  --accent-mint: #a8e6cf;
  --accent-rgb: 13, 79, 79;

  /* Status Colors */
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --info: #0284c7;
  --info-bg: #f0f9ff;

  /* Shapes */
  --radius-sm: 0.5rem;
  --radius: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;

  /* Navbar */
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-border: rgba(15, 23, 42, 0.08);

  /* Transitions */
  --transition: all 0.2s ease;
}

/* ── Dark Mode Variables ──────────────────────────────────────── */
[data-theme="dark"] {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --card: #1c2230;
  --card-hover: #202840;

  --ink: #e6edf3;
  --ink-soft: #c9d1d9;
  --muted: #8b949e;
  --muted-light: #6e7681;

  --border: rgba(255, 255, 255, 0.10);
  --border-soft: rgba(255, 255, 255, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);

  --success-bg: rgba(22, 163, 74, .12);
  --warning-bg: rgba(217, 119, 6, .12);
  --danger-bg: rgba(220, 38, 38, .12);
  --info-bg: rgba(2, 132, 199, .12);

  --nav-bg: rgba(13, 17, 23, 0.90);
  --nav-border: rgba(255, 255, 255, 0.07);
}

/* ── Base Reset ───────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Cairo', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  background-color: var(--bg);
  color: var(--ink);
  transition: background-color 0.25s ease, color 0.25s ease;
  min-height: 100vh;
}

/* ── Typography ───────────────────────────────────────────────── */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

p {
  color: var(--ink-soft);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  opacity: 0.8;
}

.fw-extrabold {
  font-weight: 800 !important;
}

.fw-black {
  font-weight: 900 !important;
}

.text-muted {
  color: var(--muted) !important;
}

/* ── Navbar ───────────────────────────────────────────────────── */
.app-navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0;
}

.app-navbar .container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink) !important;
  text-decoration: none;
  white-space: nowrap;
}

.brand-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

[data-theme="dark"] .brand-dot {
  background: #a8e6cf;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

[dir="rtl"] .nav-actions {
  margin-left: 0;
  margin-right: auto;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  font-family: 'Cairo', sans-serif;
  font-weight: 600;
  border-radius: var(--radius) !important;
  transition: var(--transition);
  font-size: 0.875rem;
}

.btn-app {
  background: var(--accent);
  color: #fff !important;
  border: none;
  padding: 0.6rem 1.4rem;
}

.btn-app:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: var(--bg-alt);
  border-color: var(--muted-light);
}

/* Theme & Language toggle buttons */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50% !important;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--ink);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  padding: 0;
  line-height: 1;
}

.btn-icon:hover {
  background: var(--border);
  transform: scale(1.05);
}

.lang-toggle {
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  width: auto !important;
  padding: 0 10px !important;
  border-radius: var(--radius-sm) !important;
  height: 32px;
}

/* ── Cards ────────────────────────────────────────────────────── */
.app-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

.app-card:hover {
  box-shadow: var(--shadow-md);
}

.app-card .card-body {
  padding: 1.5rem;
}

.app-card .card-body.card-lg {
  padding: 2rem;
}

/* ── Forms ────────────────────────────────────────────────────── */
.form-control,
.form-select {
  font-family: 'Cairo', sans-serif;
  font-size: 0.9rem;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius) !important;
  padding: 0.6rem 0.9rem;
  transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
  background: var(--card);
  color: var(--ink);
  outline: none;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background: var(--bg-alt);
  color: var(--ink);
  border-color: var(--border);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  background: var(--card);
}

.form-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.form-text {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── Badges ───────────────────────────────────────────────────── */
.badge {
  font-family: 'Cairo', sans-serif;
  font-weight: 600;
  border-radius: 999px !important;
  font-size: 0.75rem;
  padding: 0.3em 0.85em;
}

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

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

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

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

.badge-muted {
  background: var(--bg-alt);
  color: var(--muted);
}

/* ── Alerts ───────────────────────────────────────────────────── */
.alert {
  border-radius: var(--radius) !important;
  border: 1px solid transparent;
  font-size: 0.9rem;
}

.alert-success {
  background: var(--success-bg);
  color: var(--success);
  border-color: rgba(22, 163, 74, .2);
}

.alert-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border-color: rgba(217, 119, 6, .2);
}

.alert-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: rgba(220, 38, 38, .2);
}

.alert-info {
  background: var(--info-bg);
  color: var(--info);
  border-color: rgba(2, 132, 199, .2);
}

[data-theme="dark"] .alert-success {
  border-color: rgba(22, 163, 74, .3);
}

[data-theme="dark"] .alert-warning {
  border-color: rgba(217, 119, 6, .3);
}

[data-theme="dark"] .alert-danger {
  border-color: rgba(220, 38, 38, .3);
}

[data-theme="dark"] .alert-info {
  border-color: rgba(2, 132, 199, .3);
}

/* ── Tables ───────────────────────────────────────────────────── */
.app-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.app-table thead th {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.app-table tbody tr {
  transition: var(--transition);
}

.app-table tbody tr:hover {
  background: var(--bg-alt);
}

.app-table tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  color: var(--ink);
  font-size: 0.9rem;
  vertical-align: middle;
}

/* ── Step Indicator ───────────────────────────────────────────── */
.step-indicator {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 2rem;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  flex: 1;
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--card);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.step-item.active .step-circle {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.step-item.done .step-circle {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.step-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 4px;
  text-align: center;
}

.step-item.active .step-label {
  color: var(--accent);
}

.step-item.done .step-label {
  color: var(--success);
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin-top: -20px;
}

.step-line.done {
  background: var(--success);
}

/* ── Audio Player ─────────────────────────────────────────────── */
audio {
  width: 100%;
  border-radius: var(--radius);
  accent-color: var(--accent);
}

[data-theme="dark"] audio {
  filter: invert(0.85) hue-rotate(180deg);
}

/* ── Sidebar Layout (Teacher Dashboard) ───────────────────────── */
.dash-shell {
  display: flex;
  min-height: 100vh;
}

.dash-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

[dir="rtl"] .dash-sidebar {
  border-right: none;
  border-left: 1px solid var(--border);
}

.dash-main {
  flex: 1;
  min-width: 0;
}

.dash-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.dash-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #0d4f4f, #1a6b5a);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a8e6cf;
  font-size: 1rem;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.dash-brand-name {
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--ink);
}

.dash-brand-sub {
  font-size: 0.72rem;
  color: var(--muted);
}

.dash-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 0.75rem;
}

.dash-nav a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  text-decoration: none;
}

.dash-nav a:hover,
.dash-nav a.active {
  background: var(--bg-alt);
  color: var(--ink);
}

.dash-nav a.active {
  font-weight: 700;
}

.dash-nav a i {
  font-size: 1rem;
  flex-shrink: 0;
}

.dash-nav-section {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted-light);
  padding: 0.75rem 1.25rem 0.25rem;
}

.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.dash-content {
  padding: 1.5rem;
}

/* KPI Cards */
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.kpi-value {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--ink);
  line-height: 1;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

/* ── Quick summary cards ───────────────────────────────────────── */
.summary-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  height: 100%;
}

.summary-card .s-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-card .s-value {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--ink);
  margin: 0.25rem 0;
}

.summary-card .s-hint {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── Tab navigation ───────────────────────────────────────────── */
.app-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
  margin-bottom: 1.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.app-tabs::-webkit-scrollbar {
  height: 2px;
}

.app-tab, .tab-btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  border: none;
  background: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  transition: var(--transition);
}

.app-tab:hover, .tab-btn:hover {
  color: var(--ink);
}

.app-tab.active, .tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Page hero ────────────────────────────────────────────────── */
.page-hero {
  margin-bottom: 1.5rem;
}

.page-hero h1 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.page-hero p {
  color: var(--muted);
}

/* ── Recording UI ─────────────────────────────────────────────── */
.rec-status {
  font-size: 0.875rem;
  color: var(--muted);
  min-height: 1.5rem;
}

.rec-status.recording {
  color: var(--danger);
  font-weight: 600;
}

.rec-status.done {
  color: var(--success);
  font-weight: 600;
}

/* ── Chip / pill tags ─────────────────────────────────────────── */
.chip {
  display: inline-block;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: default;
  transition: var(--transition);
}

.chip.selected {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Student avatar ───────────────────────────────────────────── */
.student-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}

/* ── Progress bar ─────────────────────────────────────────────── */
.app-progress {
  height: 6px;
  border-radius: 999px;
  background: var(--bg-alt);
  overflow: hidden;
}

.app-progress-bar {
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.4s ease;
}

/* ── Utility ──────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 1rem 0;
}

.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.min-w-0 {
  min-width: 0;
}

/* ── Skeleton loader ──────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-alt) 25%, var(--border) 50%, var(--bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* ── Mobile: Sidebar drawer ───────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1040;
}

@media (max-width: 991.98px) {
  .dash-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1050;
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    box-shadow: var(--shadow-lg);
  }

  [dir="rtl"] .dash-sidebar {
    left: auto;
    right: 0;
    transform: translateX(100%);
  }

  .dash-sidebar.open {
    transform: translateX(0);
  }

  [dir="rtl"] .dash-sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.show {
    display: block;
  }

  .dash-content {
    padding: 1rem;
  }
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 575.98px) {
  .app-card .card-body {
    padding: 1.125rem;
  }

  .page-hero h1 {
    font-size: 1.3rem;
  }

  .kpi-value {
    font-size: 1.5rem;
  }
}

/* ── PWA / Mobile safe areas ─────────────────────────────────── */
body {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.app-navbar {
  padding-left:  env(safe-area-inset-left,  0px);
  padding-right: env(safe-area-inset-right, 0px);
}

/* ── Mobile improvements (<576px) ────────────────────────────── */
@media (max-width: 575.98px) {
  /* Navbar: tighten up on very small screens */
  .app-navbar .container {
    padding-left:  0.75rem;
    padding-right: 0.75rem;
  }

  /* Reduce tab padding so 5 tabs fit */
  .app-tab, .tab-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.78rem;
  }

  /* Summary cards: smaller value text */
  .summary-card .s-value { font-size: 1.3rem; }
  .kpi-value             { font-size: 1.4rem; }

  /* Topbar: wrap on tiny screens */
  .dash-topbar {
    flex-wrap: wrap;
    padding:   0.75rem 1rem;
    gap:       0.5rem;
  }

  /* Card body: tighter padding */
  .app-card .card-body { padding: 1rem; }

  /* Step indicator: smaller circles */
  .step-circle { width: 30px; height: 30px; font-size: 0.75rem; }
  .step-label  { font-size: 0.62rem; }

  /* Buttons: full width on mobile where appropriate */
  .btn-block-mobile { width: 100%; }

  /* Hero: tighter */
  .page-hero { margin-bottom: 1rem; }
  .page-hero h1 { font-size: 1.2rem; }

  /* Tables: font size */
  .app-table tbody td,
  .app-table thead th { font-size: 0.82rem; padding: 0.65rem 0.6rem; }

  /* Modals: full screen on mobile */
  .modal-dialog { margin: 0.5rem; }
}

/* ── Touch targets: minimum 44×44px ──────────────────────────── */
.btn-icon { min-width: 44px; min-height: 44px; }
.btn-sm   { min-height: 36px; }

/* ── Prevent horizontal scroll on body ───────────────────────── */
body { overflow-x: hidden; }

/* ── Bootstrap overrides ──────────────────────────────────────── */
.btn-outline-dark {
  color: var(--ink) !important;
  border-color: var(--border) !important;
}

.btn-outline-dark:hover {
  background: var(--bg-alt) !important;
  border-color: var(--muted-light) !important;
}

[data-theme="dark"] .btn-dark {
  background: #e6edf3 !important;
  color: #0d1117 !important;
  border-color: transparent !important;
}

[data-theme="dark"] .btn-dark:hover {
  background: #fff !important;
}

/* Nav pills override */
.nav-pills .nav-link {
  color: var(--muted);
  font-weight: 600;
  border-radius: var(--radius-sm) !important;
}

.nav-pills .nav-link.active {
  background: var(--accent);
  color: #fff;
}

[data-theme="dark"] .nav-pills .nav-link.active {
  background: #e6edf3;
  color: #0d1117;
}

/* Table overrides */
.table {
  color: var(--ink);
}

.table> :not(caption)>*>* {
  background: transparent;
  border-bottom-color: var(--border-soft);
}

/* Input group */
.input-group-text {
  background: var(--bg-alt);
  border-color: var(--border);
  color: var(--ink);
}

/* ── RTL specific adjustments ─────────────────────────────────── */
[dir="rtl"] .ms-auto {
  margin-left: 0 !important;
  margin-right: auto !important;
}

[dir="rtl"] .me-1 {
  margin-right: 0 !important;
  margin-left: 0.25rem !important;
}

[dir="rtl"] .me-2 {
  margin-right: 0 !important;
  margin-left: 0.5rem !important;
}

/* ── Habiba Nabil Logo Icon Component ────────────────────────── */
.hn-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d4f4f 0%, #1a6b5a 100%);
  border-radius: 9px;
  flex-shrink: 0;
}

.hn-icon.hn-sm {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.hn-icon.hn-md {
  width: 44px;
  height: 44px;
  border-radius: 11px;
}

.hn-icon.hn-lg {
  width: 72px;
  height: 72px;
  border-radius: 18px;
}

.hn-icon.hn-xl {
  width: 96px;
  height: 96px;
  border-radius: 22px;
}

.hn-icon .hn-sq {
  position: absolute;
  border: 1.5px solid rgba(168, 230, 207, 0.55);
  border-radius: 4px;
  transform: rotate(45deg);
  inset: 20%;
}

.hn-icon.hn-lg .hn-sq {
  border-width: 2px;
  border-radius: 6px;
  inset: 18%;
}

.hn-icon.hn-xl .hn-sq {
  border-width: 2.5px;
  border-radius: 8px;
  inset: 16%;
}

.hn-icon .hn-sq2 {
  transform: rotate(22.5deg);
  border-color: rgba(168, 230, 207, 0.28);
}

.hn-icon .hn-letter {
  font-family: 'Cairo', serif;
  font-weight: 800;
  color: #a8e6cf;
  line-height: 1;
  position: relative;
  z-index: 1;
  font-size: 13px;
}

.hn-icon.hn-md .hn-letter {
  font-size: 18px;
}

.hn-icon.hn-lg .hn-letter {
  font-size: 30px;
}

.hn-icon.hn-xl .hn-letter {
  font-size: 40px;
}

/* Brand name typography */
.hn-brand-name {
  font-family: 'DM Sans', 'Cairo', sans-serif;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--ink);
}

/* ── Global Animation Keyframes ───────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.90);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes floatY {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

@keyframes rotateLoop {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes pulseRing {
  0% {
    box-shadow: 0 0 0 0 rgba(13, 79, 79, .4);
  }

  70% {
    box-shadow: 0 0 0 12px rgba(13, 79, 79, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(13, 79, 79, 0);
  }
}

/* ── Animation utility classes ────────────────────────────────── */
.anim-fade-up {
  animation: fadeInUp 0.55s cubic-bezier(.22, .68, 0, 1.2) both;
}

.anim-fade-down {
  animation: fadeInDown 0.45s ease both;
}

.anim-fade {
  animation: fadeIn 0.4s ease both;
}

.anim-fade-left {
  animation: fadeInLeft 0.5s ease both;
}

.anim-fade-right {
  animation: fadeInRight 0.5s ease both;
}

.anim-scale {
  animation: scaleIn 0.4s cubic-bezier(.22, .68, 0, 1.2) both;
}

.anim-float {
  animation: floatY 3.5s ease-in-out infinite;
}

.anim-pulse {
  animation: pulseRing 2s ease-in-out infinite;
}

/* Delay helpers */
.delay-1 {
  animation-delay: 0.08s;
}

.delay-2 {
  animation-delay: 0.16s;
}

.delay-3 {
  animation-delay: 0.26s;
}

.delay-4 {
  animation-delay: 0.36s;
}

.delay-5 {
  animation-delay: 0.48s;
}

.delay-6 {
  animation-delay: 0.60s;
}

/* Scroll-reveal: hidden until JS adds .is-visible */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(.22, .68, 0, 1.2);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal.delay-1 {
  transition-delay: 0.08s;
}

.reveal.delay-2 {
  transition-delay: 0.16s;
}

.reveal.delay-3 {
  transition-delay: 0.26s;
}

.reveal.delay-4 {
  transition-delay: 0.36s;
}

/* Smooth page transitions */
.app-card {
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn {
  transition: all 0.2s cubic-bezier(.22, .68, 0, 1.2) !important;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}