/* Palette ported from my-school (public/assets/css/main.css) */
:root {
  --fiord: #002147;
  --java: #4c7fc3;
  --athens-gray: #f2f4f8;
  --catskill: #f8f9fc;
  --abbey: #6b7280;
  --mischka: #d1d5e8;
  --alto: #d1d5db;
  --zest: #f59e0b;
  --jungle: #16a34a;
  --cinnabar: #ef4444;
  --amethyst: #9333ea;

  --header-h: 56px;
  --sidebar-width: 240px;
  --text-muted: var(--abbey);
}

body {
  background: var(--athens-gray);
  color: var(--fiord);
}

/* ── Login screen ── */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--athens-gray);
}

.login-card {
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 33, 71, 0.12);
  padding: 2.25rem 2rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.login-icon {
  width: 64px;
  height: 64px;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--java) 0%, var(--fiord) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 1rem;
  color: #fff;
}

.login-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--fiord);
  margin-bottom: 0.3rem;
}

.login-subtitle {
  font-size: 0.85rem;
  color: var(--abbey);
  margin-bottom: 1.5rem;
}

.login-subtitle.is-error {
  color: var(--cinnabar);
  font-weight: 600;
}

.login-card form {
  text-align: left;
}

.login-card .btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--java) 0%, var(--fiord) 100%) !important;
  border: none !important;
  padding: 0.65rem 0;
  font-weight: 700;
}

.login-footer {
  font-size: 0.75rem;
  color: var(--abbey);
  margin-top: 1.5rem;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--fiord);
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 1.1rem 0.75rem;
  transition: transform 0.25s ease;
  z-index: 1000;
  box-shadow: 2px 0 12px rgba(0, 0, 0, 0.25);
}

.sidebar-brand-icon {
  font-size: 1.2rem;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
  margin-bottom: 1.25rem;
  padding: 0.3rem 0.5rem;
}

.sidebar-section-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.35);
  margin: 1rem 0.6rem 0.35rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.6rem;
  border-radius: 0.4rem;
  color: var(--alto);
  text-decoration: none;
  font-size: 0.88rem;
  border-left: 3px solid transparent;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar-link.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-weight: 600;
  border-left-color: var(--java);
}

.sidebar-badge {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-radius: 999px;
  font-size: 0.7rem;
  padding: 0.05rem 0.5rem;
  min-width: 1.5rem;
  text-align: center;
}

.sidebar-link.active .sidebar-badge {
  background: var(--java);
}

/* ── Topbar ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  height: var(--header-h);
  padding: 0 1.5rem;
  background: var(--fiord);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 900;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.topbar-menu {
  display: none;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  margin-right: auto;
}

.topbar-user {
  font-size: 0.85rem;
  color: var(--mischka);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.sidebar-overlay {
  display: none;
}

.main-content {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-width);
}

.page-body {
  padding: 1.5rem;
}

/* ── Stat / panel cards ── */
.stat-card {
  background: #fff;
  border-radius: 0.6rem;
  padding: 1rem 1.15rem;
  border: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
  border-left: 4px solid var(--java);
}

.stat-card .stat-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--abbey);
}

.stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0.2rem 0;
  color: var(--fiord);
}

.stat-card .stat-sub {
  font-size: 0.76rem;
  color: var(--abbey);
}

.panel {
  background: #fff;
  border-radius: 0.6rem;
  border: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
  padding: 1.1rem 1.25rem;
}

/* ── Form card: wraps add/edit forms so inputs don't stretch full-bleed ── */
.form-card {
  background: #fff;
  border-radius: 0.6rem;
  border: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
  padding: 1.5rem 1.75rem;
  max-width: 480px;
}

/* ── Forms (native elements, no extra classes needed) ── */
form label,
.form-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--abbey);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
  margin-top: 0.8rem;
}

form input[type="text"],
form input[type="password"],
form input[type="email"],
form input[type="number"],
form input[type="date"],
form input[type="datetime-local"],
form select,
form textarea,
.form-control {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid #e0e0e0;
  border-radius: 0.35rem;
  font-size: 0.85rem;
  color: var(--fiord);
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
}

form input:focus,
form select:focus,
form textarea:focus {
  border-color: var(--java);
}

form .btn,
.btn-primary {
  background: var(--java) !important;
  border-color: var(--java) !important;
}

form .btn:hover,
.btn-primary:hover {
  opacity: 0.88;
}

/* ── Tables: scroll on tablet, card-flip on phone ── */
.page-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
  background: #fff;
}

.page-body thead {
  background: var(--catskill);
}

.page-body th {
  padding: 0.6rem 0.85rem;
  text-align: left;
  font-weight: 600;
  color: var(--abbey);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--athens-gray);
}

.page-body td {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--athens-gray);
  color: var(--fiord);
}

.page-body tbody tr:hover {
  background: var(--catskill);
}

/* ── Responsive ── */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(calc(-1 * var(--sidebar-width)));
    z-index: 1100;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .topbar-menu {
    display: flex;
  }
  .topbar {
    padding: 0 1rem;
    gap: 0.5rem;
  }
  .topbar-user {
    max-width: 38vw;
  }
  .sidebar-overlay.open {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1050;
  }
}

@media (max-width: 768px) {
  .page-body {
    padding: 1rem;
  }
  .row.g-3 > [class^="col-"],
  .row.g-3 > [class*=" col-"] {
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 480px) {
  .topbar-user {
    display: none;
  }
  .form-card {
    padding: 1.1rem 1.25rem;
  }
}

/* Card-flip responsive tables on phones — data-label injected by static/js/main.js */
@media (max-width: 640px) {
  .page-body table,
  .page-body thead,
  .page-body tbody,
  .page-body tfoot,
  .page-body tr,
  .page-body th,
  .page-body td {
    display: block;
  }

  .page-body thead tr {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }

  .page-body tbody tr {
    background: #fff;
    border: 1px solid var(--athens-gray);
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    overflow: hidden;
  }

  .page-body tbody tr:hover {
    background: #fff;
  }

  .page-body td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.4rem;
    text-align: right;
    min-height: 2.4rem;
    padding: 0.5rem 0.85rem;
  }

  .page-body td form {
    display: inline-flex;
  }

  .page-body td:last-child {
    border-bottom: none;
  }

  .page-body td::before {
    content: attr(data-label);
    font-weight: 600;
    font-size: 0.68rem;
    color: var(--abbey);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: left;
    flex-shrink: 0;
    max-width: 45%;
  }

  .page-body td:not([data-label])::before {
    display: none;
  }

  .page-body td:not([data-label]) {
    justify-content: flex-end;
  }
}