/* ==========================================================================
   Dance School — Application styles
   Vanilla CSS, χωρίς preprocessor / framework.
   ========================================================================== */

/* ----- Tokens (CSS custom properties) ----- */
:root {
  --brand-50:  #fdf2f8;
  --brand-100: #fce7f3;
  --brand-200: #fbcfe8;
  --brand-300: #f9a8d4;
  --brand-400: #f472b6;
  --brand-500: #ec4899;
  --brand-600: #db2777;
  --brand-700: #be185d;
  --brand-800: #9d174d;

  --ink-50:  #f8fafc;
  --ink-100: #f1f5f9;
  --ink-200: #e2e8f0;
  --ink-300: #cbd5e1;
  --ink-400: #94a3b8;
  --ink-500: #64748b;
  --ink-600: #475569;
  --ink-700: #334155;
  --ink-800: #1e293b;
  --ink-900: #0f172a;

  --success:  #10b981;
  --success-bg: #ecfdf5;
  --warning:  #f59e0b;
  --warning-bg: #fffbeb;
  --danger:   #ef4444;
  --danger-bg: #fef2f2;
  --info:     #3b82f6;
  --info-bg:  #eff6ff;

  --shadow-soft: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.06);
  --shadow-card: 0 4px 6px -1px rgba(0,0,0,.05), 0 2px 4px -2px rgba(0,0,0,.05);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --sidebar-w: 240px;
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--ink-50);
  color: var(--ink-900);
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
input, select, textarea, button { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--ink-300); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-400); }

/* ==========================================================================
   AUTH LAYOUT (login / register)
   ========================================================================== */
.auth-body { background: linear-gradient(135deg, var(--brand-50), #fff, var(--ink-50)); min-height: 100vh; }
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card-wrap { width: 100%; max-width: 400px; }
.auth-brand { text-align: center; margin-bottom: 32px; }
.auth-brand-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 16px; background: var(--brand-600);
  color: #fff; font-size: 28px; box-shadow: var(--shadow-card); margin-bottom: 16px;
}
.auth-brand h1 { font-size: 22px; margin: 0 0 4px; }
.auth-brand p { color: var(--ink-500); margin: 0; font-size: 14px; }
.auth-card { padding: 28px; }
.auth-footer { text-align: center; margin-top: 24px; color: var(--ink-400); font-size: 12px; }

/* ==========================================================================
   APP SHELL (sidebar + main)
   ========================================================================== */
.app-body { background: var(--ink-50); }
.app-shell { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w); background: #fff; border-right: 1px solid var(--ink-200);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; flex-shrink: 0;
}
.sidebar-brand { padding: 16px; border-bottom: 1px solid var(--ink-200); }
.brand-link { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 12px; background: var(--brand-600);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0;
}
.brand-text strong { display: block; font-size: 14px; color: var(--ink-900); }
.brand-text small { display: block; font-size: 11px; color: var(--ink-500); margin-top: 2px; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 16px 8px; }
.nav-group { margin-bottom: 20px; }
.nav-group-title {
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
  color: var(--ink-400); padding: 0 12px; margin-bottom: 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 8px 12px; border-radius: var(--radius-md);
  color: var(--ink-600); font-size: 14px; font-weight: 500; transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--ink-100); color: var(--ink-900); }
.nav-item.is-active { background: var(--brand-50); color: var(--brand-700); }
.nav-icon { display: inline-flex; width: 18px; height: 18px; flex-shrink: 0; }
.nav-icon svg { width: 18px; height: 18px; }
.nav-label { flex: 1; }

/* Main */
.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-header {
  height: 64px; background: #fff; border-bottom: 1px solid var(--ink-200);
  display: flex; align-items: center; padding: 0 24px; gap: 16px; position: sticky; top: 0; z-index: 30;
}
.header-toggle {
  display: none; background: none; border: none; padding: 6px; border-radius: var(--radius-md);
  color: var(--ink-600);
}
.header-toggle:hover { background: var(--ink-100); }
.header-spacer { flex: 1; }
.app-content { flex: 1; padding: 24px; max-width: 1280px; width: 100%; margin: 0 auto; }

/* User menu */
.user-menu { position: relative; }
.user-trigger {
  display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-radius: var(--radius-md);
  background: none; border: none; transition: background .15s;
}
.user-trigger:hover { background: var(--ink-100); }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--brand-100); color: var(--brand-700);
  display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600;
}
.user-meta { text-align: left; display: flex; flex-direction: column; line-height: 1.15; }
.user-email { font-size: 13px; font-weight: 500; color: var(--ink-900); }
.user-role { font-size: 11px; color: var(--ink-500); margin-top: 2px; }
.user-dropdown {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 220px;
  background: #fff; border: 1px solid var(--ink-200); border-radius: var(--radius-md);
  box-shadow: var(--shadow-card); overflow: hidden; z-index: 50;
  animation: fadeIn .15s ease-out;
}
.user-dropdown-header { padding: 12px; border-bottom: 1px solid var(--ink-100); }
.user-dropdown-header strong { display: block; font-size: 13px; color: var(--ink-900); }
.user-dropdown-header small { display: block; font-size: 11px; color: var(--ink-500); margin-top: 2px; }
.user-dropdown-item {
  display: flex; align-items: center; gap: 8px; width: 100%; text-align: left;
  padding: 10px 12px; background: none; border: none; font-size: 14px; color: var(--ink-700);
}
.user-dropdown-item:hover { background: var(--ink-50); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }

/* ==========================================================================
   PAGE STRUCTURE
   ========================================================================== */
.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-header h1 { font-size: 24px; margin: 0 0 4px; color: var(--ink-900); }
.page-header p { margin: 0; color: var(--ink-500); font-size: 14px; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ==========================================================================
   CARDS
   ========================================================================== */
.card { background: #fff; border: 1px solid var(--ink-200); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); overflow: hidden; }
.card-header { padding: 20px; border-bottom: 1px solid var(--ink-100); display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.card-header h3 { margin: 0; font-size: 16px; font-weight: 600; color: var(--ink-900); }
.card-header p { margin: 4px 0 0; font-size: 13px; color: var(--ink-500); }
.card-body { padding: 20px; }

/* ==========================================================================
   GRID
   ========================================================================== */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   STATS
   ========================================================================== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { display: block; background: #fff; border: 1px solid var(--ink-200); border-radius: var(--radius-lg); padding: 20px; text-decoration: none; transition: box-shadow .15s; }
.stat-card:hover { box-shadow: var(--shadow-card); }
.stat-icon { width: 40px; height: 40px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.stat-icon svg { width: 20px; height: 20px; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; font-weight: 600; color: var(--ink-500); }
.stat-value { font-size: 28px; font-weight: 600; color: var(--ink-900); margin-top: 4px; }
.stat-card-brand .stat-icon { background: var(--brand-50); color: var(--brand-700); }
.stat-card-info .stat-icon { background: var(--info-bg); color: var(--info); }
.stat-card-success .stat-icon { background: var(--success-bg); color: var(--success); }
.stat-card-warning .stat-icon { background: var(--warning-bg); color: var(--warning); }
.stat-card-danger .stat-icon { background: var(--danger-bg); color: var(--danger); }

/* ==========================================================================
   LIST (rows inside card)
   ========================================================================== */
.list { display: flex; flex-direction: column; }
.list-row { display: flex; align-items: center; gap: 12px; padding: 12px 20px; border-top: 1px solid var(--ink-100); color: var(--ink-800); transition: background .15s; }
.list-row:hover { background: var(--ink-50); }
.list-row:first-child { border-top: none; }
.list-icon { width: 36px; height: 36px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.list-icon-brand { background: var(--brand-50); color: var(--brand-700); }
.list-main { flex: 1; min-width: 0; }
.list-main strong { display: block; font-size: 14px; color: var(--ink-900); }
.list-main small { display: block; font-size: 12px; color: var(--ink-500); margin-top: 2px; }

/* Empty state */
.empty-state { padding: 40px 20px; text-align: center; color: var(--ink-500); }
.empty-state svg { margin: 0 auto 12px; color: var(--ink-400); }
.empty-state p { margin: 0; font-size: 14px; }

/* Quick actions */
.quick-actions { padding: 12px; display: flex; flex-direction: column; gap: 4px; }
.quick-action { display: block; padding: 10px 12px; border-radius: var(--radius-md); font-size: 14px; color: var(--ink-700); }
.quick-action:hover { background: var(--ink-100); }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 0 16px; height: 40px; border-radius: var(--radius-md); font-size: 14px;
  font-weight: 500; border: none; cursor: pointer; transition: background .15s, opacity .15s;
  text-decoration: none; white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; border-radius: var(--radius-sm); }
.btn-lg { height: 44px; padding: 0 20px; font-size: 15px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--brand-600); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--brand-700); }
.btn-secondary { background: var(--ink-100); color: var(--ink-800); }
.btn-secondary:hover:not(:disabled) { background: var(--ink-200); }
.btn-outline { background: #fff; color: var(--ink-700); border: 1px solid var(--ink-300); }
.btn-outline:hover:not(:disabled) { background: var(--ink-50); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-ghost { background: transparent; color: var(--ink-700); }
.btn-ghost:hover:not(:disabled) { background: var(--ink-100); }

/* ==========================================================================
   FORMS
   ========================================================================== */
.form { display: flex; flex-direction: column; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-size: 13px; font-weight: 500; color: var(--ink-700); }
.form-field .required { color: var(--danger); margin-left: 2px; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="number"],
.form-field input[type="date"],
.form-field input[type="time"],
.form-field input[type="url"],
.form-field select,
.form-field textarea {
  width: 100%; height: 40px; padding: 0 12px;
  border: 1px solid var(--ink-300); border-radius: var(--radius-md);
  background: #fff; color: var(--ink-900);
  transition: border-color .15s, box-shadow .15s;
}
.form-field textarea { height: auto; padding: 10px 12px; min-height: 80px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none; border-color: var(--brand-500);
  box-shadow: 0 0 0 3px var(--brand-100);
}
.form-field .hint { font-size: 11px; color: var(--ink-500); }
.form-field .error { font-size: 12px; color: var(--danger); }
.form-row { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 600px) { .form-row { grid-template-columns: 1fr 1fr; } }
.form-row-3 { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 600px) { .form-row-3 { grid-template-columns: repeat(3, 1fr); } }

/* Checkbox */
.form-check { display: flex; align-items: flex-start; gap: 10px; }
.form-check input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--brand-600); cursor: pointer; }
.form-check label { font-size: 14px; cursor: pointer; }
.form-check small { display: block; color: var(--ink-500); font-size: 12px; margin-top: 2px; }

/* ==========================================================================
   ALERTS / FLASH
   ========================================================================== */
.alert { padding: 10px 12px; border-radius: var(--radius-md); font-size: 14px; border-left: 4px solid; }
.alert-error   { background: var(--danger-bg); border-color: var(--danger); color: #991b1b; }
.alert-success { background: var(--success-bg); border-color: var(--success); color: #065f46; }
.alert-warning { background: var(--warning-bg); border-color: var(--warning); color: #92400e; }
.alert-info    { background: var(--info-bg); border-color: var(--info); color: #1e40af; }

/* ==========================================================================
   BADGES
   ========================================================================== */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: var(--radius-sm);
         font-size: 11px; font-weight: 500; line-height: 1.5; }
.badge-neutral { background: var(--ink-100); color: var(--ink-700); }
.badge-brand   { background: var(--brand-50); color: var(--brand-700); }
.badge-success { background: var(--success-bg); color: #065f46; }
.badge-warning { background: var(--warning-bg); color: #92400e; }
.badge-danger  { background: var(--danger-bg); color: #991b1b; }
.badge-info    { background: var(--info-bg); color: #1e40af; }

/* ==========================================================================
   TABLE
   ========================================================================== */
.table-wrap { overflow-x: auto; }
.table { font-size: 14px; }
.table thead th {
  background: var(--ink-50); border-bottom: 1px solid var(--ink-200);
  text-align: left; padding: 12px 16px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-600);
}
.table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--ink-100); color: var(--ink-800); }
.table tbody tr:hover { background: rgba(248, 250, 252, .8); }
.table .text-right { text-align: right; }
.table .text-center { text-align: center; }
.table .empty-row td { padding: 48px 16px; text-align: center; color: var(--ink-500); }

/* ==========================================================================
   TOASTS
   ========================================================================== */
.toasts { position: fixed; top: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 100; max-width: 360px; }
.toast { display: flex; align-items: flex-start; gap: 12px; padding: 14px; background: #fff;
         border: 1px solid var(--ink-200); border-left-width: 4px; border-radius: var(--radius-md);
         box-shadow: var(--shadow-card); animation: slideIn .25s ease-out; }
.toast-success { border-left-color: var(--success); }
.toast-error   { border-left-color: var(--danger); }
.toast-info    { border-left-color: var(--info); }
.toast-warning { border-left-color: var(--warning); }
.toast strong { display: block; font-size: 14px; color: var(--ink-900); margin: 0; }
.toast p { margin: 4px 0 0; font-size: 13px; color: var(--ink-600); }
.toast-close { background: none; border: none; color: var(--ink-400); padding: 2px; cursor: pointer; }
.toast-close:hover { color: var(--ink-700); }
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 23, 42, .4); backdrop-filter: blur(2px);
                  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 80;
                  animation: fadeIn .15s ease-out; }
.modal { background: #fff; border-radius: var(--radius-xl); box-shadow: var(--shadow-card);
         width: 100%; max-width: 500px; max-height: 90vh; display: flex; flex-direction: column; }
.modal-sm { max-width: 400px; }
.modal-lg { max-width: 700px; }
.modal-xl { max-width: 900px; }
.modal-header { padding: 20px; border-bottom: 1px solid var(--ink-100); display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.modal-header h2 { font-size: 18px; font-weight: 600; margin: 0; color: var(--ink-900); }
.modal-header p { margin: 4px 0 0; font-size: 13px; color: var(--ink-500); }
.modal-close { background: none; border: none; color: var(--ink-400); padding: 4px; cursor: pointer; }
.modal-close:hover { color: var(--ink-700); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--ink-100); background: rgba(248, 250, 252, .5);
                display: flex; justify-content: flex-end; gap: 8px; border-radius: 0 0 var(--radius-xl) var(--radius-xl); }

/* ==========================================================================
   ERROR PAGES
   ========================================================================== */
.error-body { background: var(--ink-50); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.error-wrap { text-align: center; padding: 32px; max-width: 480px; }
.error-code { font-size: 96px; font-weight: 700; color: var(--brand-200); line-height: 1; margin-bottom: 16px; }
.error-wrap h1 { font-size: 24px; margin: 0 0 8px; }
.error-wrap p { color: var(--ink-500); margin: 0 0 24px; }

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.muted      { color: var(--ink-500); }
.text-right { text-align: right; }
.text-center{ text-align: center; }
.flex-2     { flex: 2; }
.inline-form{ display: inline; }

/* Colored swatch / dot indicators */
.color-swatch { display: inline-block; width: 24px; height: 24px; border-radius: var(--radius-sm); border: 1px solid var(--ink-200); vertical-align: middle; }
.color-dot    { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }

/* Row link inside tables (covers the entire cell text) */
.row-link { color: var(--ink-900); }
.row-link:hover { color: var(--brand-700); }

/* Notes text (preserves line breaks) */
.notes-text { color: var(--ink-700); font-size: 14px; margin: 0; white-space: pre-wrap; }

/* Detail list (dl/dt/dd) for record cards */
.detail-list { margin: 0; padding: 20px; display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; font-size: 14px; }
.detail-list dt { color: var(--ink-500); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; align-self: center; }
.detail-list dd { margin: 0; color: var(--ink-800); }

/* Compact empty state for cards inside grids */
.empty-state-sm { padding: 20px; text-align: center; color: var(--ink-500); }
.empty-state-sm p { margin: 0; font-size: 13px; }

/* Extra badge variant */
.badge-muted { background: var(--ink-100); color: var(--ink-600); }

/* Button text-link variant */
.btn-link { background: none; color: var(--ink-600); padding: 0 8px; }
.btn-link:hover:not(:disabled) { color: var(--brand-700); text-decoration: underline; }

/* Stat card "see more" link */
.stat-link { display: inline-block; margin-top: 12px; font-size: 13px; color: var(--brand-700); }
.stat-link:hover { text-decoration: underline; }

/* ==========================================================================
   TOOLBAR (search + filter form above tables)
   ========================================================================== */
.toolbar {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 12px 16px; border-bottom: 1px solid var(--ink-100); background: rgba(248, 250, 252, .5);
}
.toolbar-search {
  flex: 1; min-width: 200px; height: 36px; padding: 0 12px;
  border: 1px solid var(--ink-300); border-radius: var(--radius-md);
  background: #fff; font-size: 14px;
}
.toolbar-search:focus { outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 3px var(--brand-100); }
.toolbar-filter {
  height: 36px; padding: 0 12px; border: 1px solid var(--ink-300);
  border-radius: var(--radius-md); background: #fff; font-size: 14px;
}
.toolbar-filter:focus { outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 3px var(--brand-100); }
.toolbar .btn { height: 36px; }

/* ==========================================================================
   FORM EXTRAS (cards, inline, divider, errors)
   ========================================================================== */
.form-card { padding: 20px; }
.form-card .card-header { margin: -20px -20px 20px; padding: 16px 20px; border-bottom: 1px solid var(--ink-100); }
.form-card .form-row,
.form .form-row { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 600px) {
  .form-card .form-row,
  .form .form-row { grid-template-columns: 1fr 1fr; }
  .form-row .flex-2 { grid-column: span 2; }
}
.form-divider { border: none; border-top: 1px solid var(--ink-100); margin: 16px 0; }
.form-help    { font-size: 12px; color: var(--ink-500); }
.form-error   { font-size: 12px; color: var(--danger); }
.form-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }

/* Inline form (for in-table actions) */
.form-inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; padding: 16px 20px 4px; }
.form-inline .form-field { flex: 1; min-width: 180px; }
.form-inline .form-actions { margin-top: 0; }

/* Checkbox label wrapper */
.checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; padding: 8px 0; }
.checkbox input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--brand-600); cursor: pointer; }

/* Color picker sizing fix */
.form-field input[type="color"] {
  width: 56px; height: 40px; padding: 4px; border: 1px solid var(--ink-300);
  border-radius: var(--radius-md); background: #fff; cursor: pointer;
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */
.pagination {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 12px 16px; border-top: 1px solid var(--ink-100); flex-wrap: wrap;
}
.pagination-info { font-size: 13px; color: var(--ink-500); }
.pagination-actions { display: flex; gap: 8px; align-items: center; }
.pagination-page { font-size: 13px; color: var(--ink-600); }

/* ==========================================================================
   WEEK GRID (Schedules — εβδομαδιαία προβολή)
   ========================================================================== */
.week-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 1px;
  background: var(--ink-200); border-bottom: 1px solid var(--ink-200);
}
.week-col { background: #fff; min-height: 200px; display: flex; flex-direction: column; }
.week-col-head {
  padding: 10px 12px; font-size: 12px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .04em; color: var(--ink-600); background: var(--ink-50);
  border-bottom: 1px solid var(--ink-100); text-align: center;
}
.week-col-body { padding: 8px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.week-empty { color: var(--ink-300); text-align: center; font-size: 13px; padding: 20px 0; }
.week-chip {
  display: flex; flex-direction: column; gap: 2px;
  padding: 8px 10px; border-radius: var(--radius-sm); background: var(--ink-50);
  border-left: 3px solid var(--brand-500); font-size: 12px; color: var(--ink-800);
  transition: background .15s;
}
.week-chip:hover { background: var(--brand-50); }
.week-chip.is-inactive { opacity: .5; }
.week-chip strong { font-size: 13px; color: var(--ink-900); }
.week-chip small { font-size: 11px; color: var(--ink-500); }

/* ==========================================================================
   CALENDAR (Lessons — μηνιαία προβολή)
   ========================================================================== */
.cal-nav { display: flex; gap: 6px; }
.calendar { padding: 16px; }
.cal-weekdays {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 1px; margin-bottom: 4px;
}
.cal-weekday {
  padding: 8px 0; text-align: center; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .04em; color: var(--ink-500);
}
.cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); grid-auto-rows: minmax(110px, auto);
  gap: 1px; background: var(--ink-200); border: 1px solid var(--ink-200); border-radius: var(--radius-md);
  overflow: hidden;
}
.cal-cell {
  background: #fff; padding: 6px 8px; display: flex; flex-direction: column; gap: 4px;
  min-height: 110px; transition: background .15s;
}
.cal-cell.is-out { background: var(--ink-50); color: var(--ink-400); }
.cal-cell.is-today { background: var(--brand-50); }
.cal-cell.is-holiday { background: #fafafa; }
.cal-cell.is-holiday::before {
  content: ''; position: absolute; inset: 0; background-image: repeating-linear-gradient(45deg, transparent 0, transparent 6px, rgba(0,0,0,.02) 6px, rgba(0,0,0,.02) 12px);
  pointer-events: none;
}
.cal-cell { position: relative; }
.cal-cell-head { display: flex; justify-content: space-between; align-items: center; }
.cal-day { font-size: 13px; font-weight: 600; color: var(--ink-700); }
.cal-cell.is-today .cal-day {
  background: var(--brand-600); color: #fff; width: 22px; height: 22px;
  border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 12px;
}
.cal-cell.is-out .cal-day { color: var(--ink-400); }
.cal-tag { font-size: 11px; }
.cal-cell-body { display: flex; flex-direction: column; gap: 3px; }
.cal-chip {
  display: flex; gap: 4px; padding: 3px 6px; border-radius: 4px;
  background: var(--ink-50); border-left: 3px solid var(--brand-500);
  font-size: 11px; color: var(--ink-800); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: background .15s;
}
.cal-chip:hover { background: var(--brand-50); }
.cal-chip strong { color: var(--ink-900); }
.cal-chip span { overflow: hidden; text-overflow: ellipsis; }
.cal-chip.is-cancelled { opacity: .55; text-decoration: line-through; }
.cal-chip.is-completed { border-left-color: var(--success); }
.cal-more { font-size: 11px; color: var(--ink-500); padding: 0 6px; }

/* ==========================================================================
   ATTENDANCE TABLE
   ========================================================================== */
.attendance-table { font-size: 13px; }
.attendance-table .attendance-select {
  height: 32px; padding: 0 8px; border: 1px solid var(--ink-300);
  border-radius: var(--radius-sm); background: #fff; font-size: 13px;
}
.attendance-table .attendance-notes {
  height: 32px; padding: 0 8px; border: 1px solid var(--ink-300);
  border-radius: var(--radius-sm); background: #fff; font-size: 13px; width: 100%; min-width: 160px;
}
.attendance-table td { vertical-align: middle; }

/* ==========================================================================
   UTILITIES (cont.)
   ========================================================================== */
.hidden { display: none !important; }

/* Checkbox grid (για eligible classes selection) */
.checkbox-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px 16px; padding: 16px 20px;
}
.checkbox-grid .checkbox { padding: 4px 0; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 768px) {
  .sidebar { position: fixed; left: -100%; transition: left .25s; z-index: 60; }
  .sidebar.is-open { left: 0; }
  .header-toggle { display: inline-flex; }
  .app-content { padding: 16px; }
  .user-meta { display: none; }
  .page-header { flex-direction: column; align-items: stretch; }
  .detail-list { grid-template-columns: 1fr; gap: 4px 0; }
  .detail-list dt { margin-top: 8px; }
  .week-grid { grid-template-columns: 1fr; }
  .cal-grid { grid-auto-rows: minmax(80px, auto); font-size: 11px; }
  .cal-cell { min-height: 80px; padding: 4px; }
  .cal-chip { font-size: 10px; padding: 2px 4px; }
}