/* ───────────────────────────────────────────────────────
   Kalio Studio OS — Modern UI (v2.3.0)
   Standalone CSS — no Tailwind dependency
──────────────────────────────────────────────────────── */

/* Google Fonts imported via HTML <link> in header.php */

/* ── Root palette ─────────────────────────────────── */
:root {
  /* New modern defaults */
  --cream:       #F8F9FA;
  --beige:       #F1F3F5;
  --beige-dark:  #DEE2E6;
  --brown:       #1A1A2E;
  --text-dark:   #1A1A2E;
  --text-mid:    #6C757D;
  --text-light:  #ADB5BD;
  --white:       #FFFFFF;

  /* Primary — overridable per studio */
  --primary:     #6B9B7D;
  --primary-rgb: 107, 155, 125;

  /* Sidebar — overridable per studio */
  --sidebar-bg:   #1E2E28;
  --sidebar-bg-rgb: 30, 46, 40;
  --sidebar-text: #F0F0F0;

  /* Accent options (kept for backwards compat) */
  --sage:        #8FA882;
  --sage-light:  #C4D4BB;
  --terracotta:  #C07850;
  --rose:        #D4929A;
  --rose-light:  #F0D4D8;
}

/* ── Base ─────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
  background-color: var(--cream);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--cream);
  background-image:
    radial-gradient(ellipse at 0% 0%, rgba(var(--primary-rgb), 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 0% 100%, rgba(var(--primary-rgb), 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-dark);
  font-family: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

h1, h2, h3, h4, h5 {
  font-family: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  font-weight: 700;
  color: #111111;
  line-height: 1.25;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--brown); }

/* ── Utility colour classes ───────────────────────── */
.bg-cream        { background-color: var(--cream); }
.bg-beige        { background-color: var(--beige); }
.bg-sage         { background-color: var(--sage); }
.bg-sage-light   { background-color: var(--sage-light); }
.bg-terracotta   { background-color: var(--terracotta); }
.bg-rose         { background-color: var(--rose); }
.bg-rose-light   { background-color: var(--rose-light); }
.text-terracotta { color: var(--terracotta); }
.text-rose       { color: var(--rose); }
.text-sage       { color: var(--sage); }
.text-brown      { color: var(--brown); }
.text-mid        { color: var(--text-mid); }
.text-light-muted{ color: var(--text-light); }
.border-beige    { border-color: var(--beige-dark); }

/* ── Navbar ───────────────────────────────────────── */
.navbar {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--beige-dark);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #111111;
  letter-spacing: 0.01em;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-mid);
  transition: color 0.2s;
}
.nav-link:hover,
.nav-link.active { color: var(--primary); }

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.75rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  outline: none;
}
.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), rgba(var(--primary-rgb), 0.85));
  color: var(--white);
}
.btn-primary:hover {
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
  color: var(--white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-secondary:hover { background-color: var(--primary); color: var(--white); }

.btn-sage {
  background-color: var(--sage);
  color: var(--white);
}
.btn-sage:hover { background-color: #6E8B62; }

.btn-rose {
  background-color: var(--rose);
  color: var(--white);
}
.btn-rose:hover { background-color: #B87880; }

.btn-ghost {
  background-color: transparent;
  color: var(--text-mid);
  border: 1.5px solid var(--beige-dark);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

.btn-danger {
  background-color: #C0392B;
  color: var(--white);
}
.btn-danger:hover { background-color: #96281B; }

.btn-sm { padding: 0.35rem 0.9rem; font-size: 0.8rem; }
.btn-lg { padding: 0.85rem 2.2rem; font-size: 0.95rem; }

/* ── Cards ────────────────────────────────────────── */
.card {
  background-color: var(--white);
  border: 1px solid var(--beige-dark);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 24px rgba(0,0,0,0.06);
}

.card-beige {
  background-color: var(--beige);
  border-color: var(--beige-dark);
}

.card-hover {
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.card-hover:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

/* ── Stat cards ───────────────────────────────────── */
.stat-card {
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--primary-rgb), 0.02));
  border: 1px solid var(--beige-dark);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  text-align: center;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.stat-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.stat-card .stat-number {
  font-family: 'Inter', sans-serif;
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.stat-card .stat-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-light);
  margin-top: 0.35rem;
}

/* ── Forms ────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-mid);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 0.65rem 0.9rem;
  background-color: var(--white);
  border: 1.5px solid var(--beige-dark);
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--text-dark);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236C757D' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}

.form-error {
  font-size: 0.82rem;
  color: #C0392B;
  margin-top: 0.3rem;
}

/* ── Alerts ───────────────────────────────────────── */
.alert {
  padding: 0.9rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  border-left: 4px solid;
  margin-bottom: 1rem;
}
.alert-success { background: #EAF5EA; border-color: #4CAF50; color: #2E7D32; }
.alert-error   { background: #FDEAEA; border-color: #C0392B; color: #7B1A1A; }
.alert-warning { background: #FFF8E8; border-color: #F0A030; color: #7A5A00; }
.alert-info    { background: var(--rose-light); border-color: var(--rose); color: var(--brown); }

/* ── Tables ───────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.data-table th {
  background-color: var(--beige);
  color: var(--text-mid);
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--beige-dark);
}
table.data-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--beige);
  color: var(--text-dark);
  vertical-align: middle;
}
table.data-table tbody tr:hover { background-color: var(--beige); }

/* ── Badges ───────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge-green    { background: #DCF5DC; color: #2E7D32; }
.badge-red      { background: #FDEAEA; color: #C0392B; }
.badge-yellow   { background: #FFF8D6; color: #856404; }
.badge-blue     { background: #E3F0FF; color: #1A5276; }
.badge-rose     { background: var(--rose-light); color: #8B3A42; }
.badge-sage     { background: #DCF0D8; color: #3A5E32; }
.badge-gray     { background: #F0F0F2; color: var(--text-mid); }

/* ── Hero ─────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--beige) 0%, var(--cream) 60%, rgba(var(--primary-rgb), 0.08) 100%);
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  color: var(--brown);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-mid);
  margin-top: 1rem;
  font-weight: 400;
}

/* ── Divider ──────────────────────────────────────── */
.divider {
  width: 48px;
  height: 2px;
  background-color: var(--primary);
  margin: 1rem 0;
}
.divider-center { margin: 1rem auto; }

/* ── Section ──────────────────────────────────────── */
.section { padding: 4rem 0; }
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.5rem;
}

/* ── Sidebar layout (admin/teacher/student) ──────── */
.app-layout {
  display: flex;
  align-items: stretch;
  min-height: 100vh;
}

.sidebar-rail {
  width: 240px;
  min-width: 240px;
  align-self: stretch;
  background: rgba(var(--sidebar-bg-rgb, 30,46,40), 0.88);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-right: 1px solid rgba(255,255,255,0.06);
  position: relative;
  z-index: 120;
}

.sidebar {
  width: 240px;
  min-width: 240px;
  background: transparent;
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
  z-index: 200;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-logo span {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--sidebar-text);
}

.sidebar-nav { flex: 1; padding: 1rem 0; }

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--sidebar-text);
  opacity: 0.8;
  transition: background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
  border-left: 3px solid transparent;
}
.sidebar-link:hover {
  background: rgba(255,255,255,0.07);
  color: var(--sidebar-text);
  opacity: 1;
}
.sidebar-link.active {
  background: rgba(var(--primary-rgb), 0.18);
  color: var(--sidebar-text);
  opacity: 1;
  border-left-color: var(--primary);
  font-weight: 600;
}

.sidebar-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--sidebar-text);
  opacity: 0.45;
  padding: 1rem 1.25rem 0.35rem;
}

.main-content {
  padding-left: 0;
  flex: 1;
  min-height: 100vh;
  background-color: var(--cream);
}

.main-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--beige-dark);
  padding: 1rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.main-body { padding: 2rem 1.75rem; }

/* ── Hamburger for mobile sidebar ────────────────── */
.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--brown);
}

@media (max-width: 768px) {
  .sidebar-rail {
    width: 0;
    min-width: 0;
    background: transparent;
    border-right: 0;
    position: relative;
    z-index: 1260;
    pointer-events: none;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(86vw, 280px);
    min-width: min(86vw, 280px);
    height: 100vh;
    max-height: 100vh;
    background: rgba(var(--sidebar-bg-rgb, 30,46,40), 0.985);
    transform: translateX(-100%);
    box-shadow: 18px 0 42px rgba(0,0,0,0.22);
    border-right: 1px solid rgba(255,255,255,0.08);
    pointer-events: auto;
    z-index: 1261;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(12,16,22,0.28);
    z-index: 1250;
  }
  .sidebar-overlay.open { display: block; }
  .main-content { padding-left: 0; }
  .sidebar-toggle { display: flex; }
}

/* ── Class cards ──────────────────────────────────── */
.class-card {
  background: var(--white);
  border: 1px solid var(--beige-dark);
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.class-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transform: translateY(-1px);
}

.class-card-header {
  background: var(--beige);
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--beige-dark);
}

.class-type-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}
.tag-private { background: var(--rose-light); color: #8B3A42; }
.tag-group2  { background: #DCF0D8; color: #3A5E32; }
.tag-group3  { background: #E3F0FF; color: #1A4080; }
.tag-yoga    { background: #F0F0E8; color: #5A5A30; }

/* ── Pricing table ────────────────────────────────── */
.pricing-card {
  background: var(--white);
  border: 1px solid var(--beige-dark);
  border-radius: 12px;
  overflow: hidden;
}
.pricing-card-header {
  background: var(--brown);
  color: var(--white);
  padding: 1.25rem 1.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}
.pricing-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--beige);
  font-size: 0.9rem;
}
.pricing-row:last-child { border-bottom: none; }
.pricing-row:hover { background: var(--beige); }
.price-regular { color: var(--text-light); text-decoration: line-through; font-size: 0.82rem; }
.price-discount { color: var(--primary); font-weight: 700; font-size: 1rem; }

/* ── Reminder banner ──────────────────────────────── */
.reminder-banner {
  background: var(--rose-light);
  border: 1px solid var(--rose);
  border-radius: 8px;
  padding: 0.85rem 1.25rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--brown);
}

/* ── Calendar/schedule grid ───────────────────────── */
.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
}
@media (max-width: 640px) {
  .week-grid { grid-template-columns: repeat(3, 1fr); }
}

.day-col-header {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-mid);
  padding: 0.5rem;
}

.day-col-today .day-col-header { color: var(--primary); }

/* ── Calendar day columns ────────────────────────── */
.day-col {
  background: var(--white);
  border: 1px solid var(--beige-dark);
  border-radius: 10px;
  overflow: hidden;
  min-height: 180px;
}
.day-col-today {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}
.day-col-classes {
  padding: 0.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

/* Override class-card inside day columns */
.day-col-classes .class-card {
  background: var(--beige);
  padding: 0.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.day-col-classes .class-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* ── Modal ────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26,26,46,0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-box {
  background: var(--white);
  border-radius: 16px;
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(26,26,46,0.25);
  animation: modalIn 0.25s ease;
  max-height: 90vh;
  overflow-y: auto;
}

/* Tall modal: fixed header + scrollable body + sticky footer */
.modal-tall {
  background: var(--white);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 600px;
  box-shadow: 0 -4px 40px rgba(26,26,46,0.2);
  display: flex;
  flex-direction: column;
  max-height: 92vh;
  animation: modalSlideUp 0.28s cubic-bezier(0.34,1.06,0.64,1);
}
.modal-tall-header {
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid var(--beige-dark);
  flex-shrink: 0;
}
.modal-tall-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
  -webkit-overflow-scrolling: touch;
}
.modal-tall-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--beige-dark);
  background: var(--white);
  flex-shrink: 0;
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}
.modal-backdrop.modal-bottom {
  align-items: flex-end;
  padding: 0;
}
@keyframes modalSlideUp {
  from { opacity:0; transform: translateY(40px); }
  to   { opacity:1; transform: translateY(0); }
}
@keyframes modalIn {
  from { opacity:0; transform: translateY(-16px); }
  to   { opacity:1; transform: translateY(0); }
}

/* Mobile: full-screen modals */
@media (max-width: 640px) {
  .modal-backdrop {
    align-items: flex-end;
    padding: 0;
  }
  .modal-box {
    max-width: 100%;
    max-height: 95vh;
    border-radius: 16px 16px 0 0;
    padding: 1.5rem;
    animation: modalSlideUp 0.25s ease;
  }
  .modal-tall {
    max-width: 100%;
    max-height: 95vh;
    border-radius: 16px 16px 0 0;
  }
  .modal-tall-header {
    padding: 1rem 1.25rem 0.75rem;
  }
  .modal-tall-body {
    padding: 1rem 1.25rem;
  }
  .modal-tall-footer {
    padding: 0.75rem 1.25rem;
  }
}

/* Desktop: center the tall modal */
@media (min-width: 768px) {
  .modal-backdrop.modal-bottom {
    align-items: center;
    padding: 1rem;
  }
  .modal-tall {
    border-radius: 16px;
    max-height: 88vh;
  }
}

/* Mobile: bigger touch targets */
@media (max-width: 640px) {
  .modal-tall-body .form-input,
  .modal-tall-body .form-select,
  .modal-tall-body select {
    font-size: 16px; /* prevent iOS zoom */
    min-height: 44px;
  }
  .modal-tall-footer .btn {
    min-height: 48px;
    font-size: 1rem;
  }
  .modal-tall-footer {
    flex-direction: column-reverse;
  }
  .modal-tall-footer .btn {
    width: 100%;
  }
}

/* ── Page header bar ──────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: #111111;
  margin: 0;
}

/* ── Footer ───────────────────────────────────────── */
.site-footer {
  background-color: var(--primary);
  color: #fff;
  padding: 3rem 0 1.5rem;
}
.site-footer a { color: var(--beige-dark); transition: color 0.2s ease; }
.site-footer a:hover { color: var(--white); }
.footer-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

/* ── Loading spinner ──────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar (webkit) ───────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--beige); }
::-webkit-scrollbar-thumb { background: var(--beige-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-light); }

/* ── Print ────────────────────────────────────────── */
@media print {
  .sidebar, .main-header, .btn, .no-print { display: none !important; }
  .main-content { padding-left: 0 !important; }
  body { background: #fff; color: #1A1A2E; }
}

/* ── View tabs ───────────────────────────────────── */
.view-tab {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-mid);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
}
.view-tab:hover {
  color: var(--brown);
  border-bottom-color: var(--beige-dark);
}
.view-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ── Animations ───────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up {
  animation: fadeInUp 0.3s ease both;
}

/* Stagger children */
.fade-in-up:nth-child(1) { animation-delay: 0s; }
.fade-in-up:nth-child(2) { animation-delay: 0.05s; }
.fade-in-up:nth-child(3) { animation-delay: 0.1s; }
.fade-in-up:nth-child(4) { animation-delay: 0.15s; }
.fade-in-up:nth-child(5) { animation-delay: 0.2s; }
.fade-in-up:nth-child(6) { animation-delay: 0.25s; }

/* ── Tailwind replacement utilities ───────────────── */
.max-w-6xl { max-width: 72rem; }
.max-w-2xl { max-width: 42rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.gap-8 { gap: 2rem; }
.pb-8 { padding-bottom: 2rem; }
.border-b { border-bottom: 1px solid var(--beige-dark); }
.pt-6 { padding-top: 1.5rem; }
.text-center { text-align: center; }
.mb-3 { margin-bottom: 0.75rem; }
.w-full { width: 100%; box-sizing: border-box; display: block; text-align: center; max-width: 100%; }
.w-full.btn { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inline-select { display: inline-block; width: auto; }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

/* ── Sidebar today card (app_header) ──────────────── */
.sidebar-today-card {
  background: rgba(var(--primary-rgb), 0.08);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  margin: 0 0.75rem 0.75rem;
}
.sidebar-today-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--sidebar-text);
  opacity: 0.5;
  margin-bottom: 0.4rem;
}
.sidebar-today-stat {
  display: block;
  font-size: 0.85rem;
  color: var(--sidebar-text);
  text-decoration: none;
  padding: 0.15rem 0;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}
.sidebar-today-stat:hover { opacity: 1; }
.sidebar-today-warning { color: #E8603C; }
.sidebar-today-warning:hover { color: #C04020; }

/* ── Header action bar (app_header) ───────────────── */
.header-actions { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; }
.header-icon-btn {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 6px;
  transition: background 0.2s ease;
}
.header-icon-btn:hover { background: rgba(0,0,0,0.05); }

.logout-dropdown { position: relative; }
.logout-confirm-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--white);
  border: 1px solid var(--beige-dark);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  min-width: 160px;
  z-index: 1000;
}
.logout-confirm-dropdown p { margin: 0 0 0.5rem; font-size: 0.9rem; color: var(--text-dark); }
.logout-confirm-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }

.lang-pill {
  background: var(--beige);
  border: 1px solid var(--beige-dark);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.lang-pill:hover { background: var(--beige-dark); border-color: var(--text-light); }

.logout-text-btn {
  background: none;
  border: none;
  font-size: 0.85rem;
  color: var(--text-mid);
  cursor: pointer;
  padding: 0.3rem 0;
  transition: color 0.2s ease;
}
.logout-text-btn:hover { color: var(--rose); }


/* Teacher schedule and private 1:1 booking */
.teacher-schedule-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1rem}.teacher-schedule-toolbar h2{margin:0;color:var(--brown);font-size:1.35rem}.teacher-schedule-toolbar p{margin:.3rem 0 0;color:var(--text-mid)}.teacher-private-cta{min-height:44px;white-space:normal}.teacher-private-cta-mobile{display:none;width:100%;margin-bottom:1rem}.teacher-filter-bar{background:var(--cream);padding:1rem;border-radius:8px;margin-bottom:1rem}.teacher-filter-controls{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}.teacher-filter-label{font-weight:600;color:var(--text-mid);font-size:.9rem}.teacher-filter-controls .filter-dropdown{position:relative}.teacher-filter-controls .filter-menu{position:absolute;top:calc(100% + 4px);left:0;z-index:100;min-width:190px;padding:.5rem;background:#fff;border:1px solid var(--beige-dark);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.13)}.teacher-filter-controls .filter-menu[hidden]{display:none}.teacher-filter-controls .filter-menu label{display:flex;align-items:center;gap:.5rem;min-height:44px;padding:.5rem;border-radius:6px;cursor:pointer}.teacher-filter-controls .filter-menu label:hover,.teacher-filter-controls .filter-menu label:focus-within{background:var(--cream)}.teacher-week-nav{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.teacher-week-scroll{max-width:100%;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;padding:0 0 .65rem;scrollbar-gutter:stable}.teacher-week-grid{display:grid;grid-template-columns:repeat(7,minmax(110px,1fr));gap:.5rem;min-width:780px;align-items:stretch}.teacher-day-column{display:flex;min-width:0;flex-direction:column}.teacher-day-classes{flex:1;height:auto!important;max-height:none!important;overflow:visible!important}.teacher-day-header{text-align:center;padding:.55rem;border-radius:6px 6px 0 0;background:var(--beige-dark);color:var(--text-dark);font-size:.78rem;font-weight:700}.teacher-day-header.is-today{background:var(--terracotta);color:#fff}.teacher-day-header span{display:block;margin-top:.15rem;font-weight:400}.teacher-day-classes{min-height:164px;padding:.3rem;background:var(--cream);border:1px solid var(--beige-dark);border-top:0;border-radius:0 0 6px 6px}.teacher-class-card{margin-bottom:.4rem;padding:.5rem;border:1px solid color-mix(in srgb,var(--type-color) 35%,transparent);border-left:4px solid var(--location-color);border-radius:5px;background:color-mix(in srgb,var(--type-color) 13%,#fff);overflow-wrap:anywhere}.teacher-class-card.is-cancelled{opacity:.62;text-decoration:line-through}.teacher-class-card.is-highlighted{outline:3px solid var(--terracotta);outline-offset:2px;animation:teacher-highlight 1.6s ease-out}.teacher-class-time{font-size:.78rem;font-weight:700;color:var(--brown)}.teacher-class-title{font-size:.78rem;color:var(--text-dark);line-height:1.35}.teacher-class-meta,.teacher-class-students{font-size:.72rem;color:var(--text-mid);margin-top:.15rem}.teacher-class-students{font-style:italic}.teacher-empty-day{text-align:center;padding:1rem;color:var(--text-light)}.teacher-week-affordance{display:none;margin:0 0 .35rem;color:var(--text-mid);font-size:.8rem;text-align:right}.teacher-mobile-agenda{display:none}@keyframes teacher-highlight{0%,45%{background:#fff3c4}100%{background:color-mix(in srgb,var(--type-color) 13%,#fff)}}
.private-booking-open{overflow:hidden}.private-booking-overlay{position:fixed;inset:0;z-index:1600;display:flex;align-items:center;justify-content:center;padding:24px;background:rgba(38,27,20,.55)}.private-booking-overlay[hidden]{display:none}.private-booking-dialog{display:flex;flex-direction:column;width:min(540px,100%);max-height:min(860px,calc(100vh - 48px));max-height:min(860px,calc(100dvh - 48px));overflow:hidden;background:#fff;border-radius:14px;box-shadow:0 24px 70px rgba(0,0,0,.3)}.private-booking-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1.25rem;border-bottom:1px solid var(--beige-dark)}.private-booking-header h2{margin:0;color:var(--brown);font-size:1.3rem}.private-booking-header p{margin:.3rem 0 0;color:var(--text-mid);line-height:1.45}.private-booking-close{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;border:0;border-radius:50%;background:var(--cream);font-size:1.6rem;cursor:pointer}.private-booking-dialog form{display:flex;flex:1;min-height:0;flex-direction:column}.private-booking-body{flex:1;min-height:0;overflow-y:auto;padding:1.25rem}.private-booking-field{margin-bottom:1rem}.private-booking-field label{display:block;margin-bottom:.4rem;font-weight:650;color:var(--text-dark)}.private-booking-field input,.private-booking-field select{width:100%;min-height:44px;padding:.65rem .75rem;border:1px solid var(--beige-dark);border-radius:8px;background:#fff;font:inherit}.private-booking-field input:focus,.private-booking-field select:focus{outline:3px solid color-mix(in srgb,var(--terracotta) 30%,transparent);border-color:var(--terracotta)}.field-help,.field-error{margin:.35rem 0 0;font-size:.84rem;line-height:1.4}.field-help{color:var(--text-mid)}.field-error{color:#9c2f2f}.private-student-combobox{position:relative}.private-student-results{position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:10;max-height:230px;overflow-y:auto;padding:.3rem;background:#fff;border:1px solid var(--beige-dark);border-radius:8px;box-shadow:0 10px 25px rgba(0,0,0,.15)}.private-student-results[hidden]{display:none}.private-student-option{display:flex;min-height:48px;width:100%;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem;border:0;border-radius:6px;background:#fff;text-align:left;cursor:pointer}.private-student-option:hover,.private-student-option:focus{background:var(--cream);outline:2px solid var(--terracotta)}.private-student-option span{color:var(--text-mid)}.private-selected-student{display:flex;align-items:center;justify-content:flex-start;gap:.75rem;min-height:44px;margin-top:.5rem;padding:.65rem .75rem;border-radius:8px;background:var(--cream)}.private-selected-student[hidden]{display:none}.private-selected-student span{color:var(--text-mid)}.private-selected-check{display:grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--sage);color:#fff!important;font-weight:800}.private-selected-details{display:grid;min-width:0;gap:.12rem}.private-selected-details small{font-size:.72rem;color:var(--text-mid)}.private-selected-details strong{color:var(--text-dark)}.private-booking-retry[hidden]{display:none!important}.private-booking-message,.private-package-summary{margin-bottom:1rem;padding:.75rem;border:1px solid;border-radius:8px;line-height:1.45}.private-booking-message.is-error{color:#7d2525;background:#fff0f0;border-color:#d88}.private-booking-message.is-success{color:#245f35;background:#effaf2;border-color:#82ba90}.private-package-summary{color:#245f35;background:#effaf2;border-color:#82ba90}.private-booking-retry{min-height:44px;margin-top:.5rem}.private-booking-footer{display:flex;justify-content:flex-end;gap:.75rem;padding:1rem 1.25rem calc(1rem + env(safe-area-inset-bottom));border-top:1px solid var(--beige-dark);background:#fff}.private-booking-footer .btn{min-height:44px}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
@media (max-width:1024px) and (min-width:641px){.teacher-filter-controls .btn,.teacher-week-nav .btn{min-height:44px}.teacher-week-affordance{display:block}.teacher-week-scroll{width:100%;contain:inline-size}.teacher-week-grid{grid-template-columns:repeat(7,minmax(126px,1fr));min-width:920px}.main-content:has(.teacher-week-scroll){min-width:0;overflow-x:clip}}


/* Private scheduling settings + durable admin private-lesson notifications */
.private-scheduling-card legend{font-size:1.1rem;font-weight:700;color:var(--brown);padding:0 .5rem}.private-scheduling-intro{margin:.35rem 0 1rem;color:var(--text-mid);font-size:.88rem}.private-location-list{display:grid;gap:.75rem}.private-location-section{border:1px solid var(--beige-dark);border-radius:10px;overflow:hidden}.private-location-section>h3{margin:0;padding:.85rem 1rem;font-size:1rem;color:var(--brown);background:var(--beige)}.private-location-toggle{width:100%;min-height:44px;display:flex;align-items:center;justify-content:space-between;padding:.7rem 1rem;border:0;background:var(--beige);color:var(--brown);font:inherit;font-weight:700;cursor:pointer;text-align:left}.private-location-toggle[aria-expanded="true"] span:last-child{transform:rotate(180deg)}.private-location-panel{padding:1rem;display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.8fr);gap:1rem 1.5rem;align-items:center}.private-location-panel[hidden]{display:none}.private-checkbox-row{display:flex;align-items:flex-start;gap:.7rem;min-height:44px;cursor:pointer}.private-checkbox-row input{flex:0 0 auto;width:22px;height:22px;margin:1px 0 0;accent-color:var(--primary)}.private-checkbox-row span,.private-capacity-control>span{display:grid;gap:.2rem}.private-checkbox-row small,.private-capacity-control small{font-size:.78rem;line-height:1.4;color:var(--text-light)}.private-capacity-control{display:flex;align-items:center;justify-content:space-between;gap:1rem}.private-stepper{display:grid;grid-template-columns:44px 54px 44px;align-items:center}.private-stepper button{min-width:44px;min-height:44px;border:1px solid var(--beige-dark);background:#fff;color:var(--brown);font-size:1.2rem;cursor:pointer}.private-stepper input{width:54px;height:44px;border:1px solid var(--beige-dark);border-left:0;border-right:0;text-align:center;font:inherit;font-weight:700}.private-rule-summary{grid-column:1/-1;margin:0;padding:.65rem .75rem;border-radius:8px;background:rgba(var(--primary-rgb),.08);color:var(--text-mid);font-size:.82rem;line-height:1.45}.private-admin-notify{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--beige-dark)}.private-manage-link{display:inline-flex;align-items:center;min-height:44px;margin-top:.55rem;color:var(--primary);font-weight:700;text-decoration:none}.admin-notification-banner{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem;padding:.9rem 1rem;border:1px solid rgba(var(--primary-rgb),.35);border-radius:12px;background:rgba(var(--primary-rgb),.08)}.admin-notification-banner-copy{min-width:0}.admin-notification-banner-copy p{margin:.25rem 0;font-size:.88rem;line-height:1.45}.admin-notification-banner-copy small{color:var(--text-mid)}.admin-notification-actions{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.admin-notification-actions form{margin:0}.admin-notification-actions button{min-height:44px}.admin-private-activity{margin-bottom:1.5rem}.admin-private-activity-header{margin-bottom:.75rem}.admin-private-activity-header h3{font-size:1.1rem;margin:0}.admin-private-activity-header p{margin:.2rem 0 0;color:var(--text-mid);font-size:.84rem}.admin-private-activity-list{display:grid;gap:.55rem}.admin-private-activity-item{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem;border:1px solid var(--beige-dark);border-radius:9px}.admin-private-activity-item.is-unread{border-left:4px solid var(--primary);background:rgba(var(--primary-rgb),.06)}.admin-private-activity-copy{display:grid;gap:.2rem;min-width:0;font-size:.84rem}.admin-private-activity-copy span{color:var(--text-mid)}.admin-private-unread{font-size:.72rem!important;font-weight:800;color:var(--primary)!important;text-transform:uppercase}.admin-private-activity-item form{margin:0;flex-shrink:0}.admin-private-activity-item button{min-height:44px}.admin-private-activity-empty{margin:0;color:var(--text-light)}.admin-class-highlight{outline:3px solid var(--primary);outline-offset:-3px;background:rgba(var(--primary-rgb),.08)!important}
@media (max-width:1024px) and (min-width:761px){
  .main-content:has(.admin-notification-banner){min-width:0;overflow-x:clip}
  .admin-notification-banner{min-width:0;max-width:100%;flex-wrap:wrap;box-sizing:border-box}
  .admin-notification-banner-copy{flex:1 1 100%;min-width:0;overflow-wrap:anywhere}
  .admin-notification-actions{flex:1 1 100%;justify-content:flex-end;flex-wrap:wrap}
  .admin-private-activity-item{min-width:0;flex-wrap:wrap}
}
@media(max-width:1024px){
  .private-location-panel{grid-template-columns:1fr;padding:.9rem}
  .private-capacity-control{align-items:flex-start;flex-direction:column}
  .private-stepper{width:100%;grid-template-columns:44px minmax(54px,1fr) 44px}
  .private-stepper input{width:100%;box-sizing:border-box}
}