@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;700;800&family=Sora:wght@500;600;700&display=swap");

:root {
  --bg: #f3f5f8;
  --bg-strong: #e9eef4;
  --ink: #122033;
  --ink-soft: #556273;
  --line: rgba(18, 32, 51, 0.1);
  --card: rgba(255, 255, 255, 0.92);
  --card-strong: #ffffff;
  --navy: #12304a;
  --navy-deep: #0c2236;
  --teal: #0f766e;
  --gold: #ca8a04;
  --rose: #d9485f;
  --success: #18794e;
  --danger: #b42318;
  --shadow: 0 24px 50px rgba(18, 32, 51, 0.1);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Manrope", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, rgba(15, 118, 110, 0.08), transparent 36%), var(--bg);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.page-backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at top left, rgba(18, 48, 74, 0.18), transparent 32%),
    radial-gradient(circle at right 10% top 20%, rgba(15, 118, 110, 0.14), transparent 26%),
    linear-gradient(180deg, #f7f9fc 0%, #eef3f8 100%);
}

.page-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(18, 32, 51, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 32, 51, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 90%);
}

.app-root {
  min-height: 100vh;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hidden {
  display: none !important;
}

.loading-screen,
.auth-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.loading-card,
.auth-layout,
.workspace-shell,
.admin-shell {
  width: min(1200px, 100%);
}

.loading-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 36px;
}

.auth-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.auth-panel,
.auth-card,
.app-card,
.workspace-main,
.workspace-sidebar,
.flash-card,
.modal-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.auth-panel {
  padding: 40px;
  background:
    linear-gradient(150deg, rgba(12, 34, 54, 0.97), rgba(18, 48, 74, 0.94)),
    var(--navy);
  color: #f7fafc;
  position: relative;
  overflow: hidden;
}

.auth-panel::after {
  content: "";
  position: absolute;
  inset: auto -60px -100px auto;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(202, 138, 4, 0.24), transparent 68%);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-family: "Sora", sans-serif;
  font-weight: 700;
  margin-bottom: 18px;
}

.auth-panel h1,
.auth-card h2,
.section-header h2,
.section-header h3,
.card-title h3,
.card-title h4,
.stat-value,
.nav-pill,
.workspace-brand h1,
.admin-brand h1 {
  margin: 0;
  font-family: "Sora", sans-serif;
  letter-spacing: -0.03em;
}

.auth-panel h1 {
  font-size: clamp(2.3rem, 4vw, 3.6rem);
  line-height: 1.02;
}

.auth-panel p {
  max-width: 640px;
  color: rgba(247, 250, 252, 0.82);
}

.feature-stack {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.feature-item {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.feature-item strong {
  display: block;
  margin-bottom: 6px;
}

.auth-card {
  padding: 34px 30px;
  align-self: center;
}

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

.form-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.single {
  grid-template-columns: minmax(0, 1fr);
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid rgba(18, 32, 51, 0.14);
  background: rgba(255, 255, 255, 0.98);
  color: var(--ink);
  border-radius: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.field textarea {
  min-height: 100px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(15, 118, 110, 0.5);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.12);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
}

.checkbox-row label {
  font-weight: 600;
}

.button-row,
.toolbar-row,
.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-button,
.secondary-button,
.ghost-button,
.danger-button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  transition: transform 120ms ease, opacity 120ms ease, filter 120ms ease;
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.danger-button:hover {
  transform: translateY(-1px);
  filter: saturate(1.05);
}

.primary-button {
  color: white;
  background: linear-gradient(135deg, var(--navy), #1c4f77);
}

.secondary-button {
  color: var(--navy);
  background: rgba(18, 48, 74, 0.08);
}

.ghost-button {
  color: var(--ink);
  background: transparent;
  border: 1px solid rgba(18, 32, 51, 0.1);
}

.danger-button {
  color: white;
  background: linear-gradient(135deg, #b42318, #d4443a);
}

.helper {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.flash-wrap {
  position: sticky;
  top: 14px;
  z-index: 9;
  padding: 14px 18px 0;
}

.flash-card {
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.flash-card.info {
  background: rgba(18, 48, 74, 0.08);
}

.flash-card.success {
  background: rgba(24, 121, 78, 0.08);
}

.flash-card.error {
  background: rgba(180, 35, 24, 0.08);
}

.shell-frame {
  min-height: 100vh;
  padding: 18px;
  display: grid;
  gap: 18px;
}

.admin-shell,
.workspace-shell {
  display: grid;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.topbar-copy {
  min-width: 0;
}

.topbar-copy p {
  margin: 6px 0 0;
  color: var(--ink-soft);
}

.topbar-badges,
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.chip {
  background: rgba(18, 48, 74, 0.07);
  color: var(--navy);
}

.status-chip.active {
  background: rgba(24, 121, 78, 0.1);
  color: var(--success);
}

.status-chip.suspended {
  background: rgba(180, 35, 24, 0.1);
  color: var(--danger);
}

.layout-grid {
  display: grid;
  gap: 18px;
}

.layout-grid.admin {
  grid-template-columns: 1.1fr 0.9fr;
}

.layout-grid.workspace {
  grid-template-columns: 290px minmax(0, 1fr);
}

.workspace-sidebar {
  padding: 22px;
  align-self: start;
  position: sticky;
  top: 18px;
}

.workspace-brand {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.workspace-brand p {
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.sidebar-nav {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.nav-pill {
  padding: 13px 15px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 16px;
  background: rgba(18, 48, 74, 0.05);
  color: var(--ink);
}

.nav-pill.is-active {
  background: linear-gradient(135deg, rgba(18, 48, 74, 0.14), rgba(15, 118, 110, 0.12));
  border-color: rgba(18, 48, 74, 0.12);
}

.sidebar-note {
  margin-top: 20px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(15, 118, 110, 0.06);
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.workspace-main {
  padding: 22px;
}

.section-stack {
  display: grid;
  gap: 18px;
}

.section-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}

.section-header p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  max-width: 760px;
}

.stats-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.app-card {
  padding: 20px;
}

.stat-value {
  margin-top: 8px;
  font-size: 2rem;
}

.split-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.triple-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(18, 32, 51, 0.08);
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.card-title {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.color-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(18, 48, 74, 0.06);
}

.swatch {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(18, 32, 51, 0.16);
}

.availability-grid table td,
.availability-grid table th {
  text-align: center;
  padding: 8px;
}

.alert-stack {
  display: grid;
  gap: 12px;
}

.alert-card {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.alert-card.error {
  background: rgba(180, 35, 24, 0.06);
  border-color: rgba(180, 35, 24, 0.16);
}

.alert-card.warning {
  background: rgba(202, 138, 4, 0.08);
  border-color: rgba(202, 138, 4, 0.16);
}

.selection-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.selection-panel {
  padding: 16px;
  border-radius: 18px;
  background: rgba(18, 48, 74, 0.05);
  border: 1px solid rgba(18, 48, 74, 0.08);
}

.checkbox-list {
  display: grid;
  gap: 10px;
  max-height: 220px;
  overflow: auto;
}

.checkbox-list label {
  display: flex;
  align-items: center;
  gap: 10px;
}

.timetable-grid {
  overflow-x: auto;
}

.timetable-grid table {
  min-width: 940px;
  border-collapse: separate;
  border-spacing: 0;
}

.timetable-grid th,
.timetable-grid td {
  border: 1px solid rgba(18, 32, 51, 0.08);
  padding: 0;
}

.slot-head {
  min-width: 180px;
  width: 180px;
  padding: 12px;
  background: rgba(247, 249, 252, 0.96);
}

.slot-head strong {
  display: block;
  font-family: "Sora", sans-serif;
}

.cell {
  min-width: 180px;
  min-height: 128px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.8);
}

.cell-stack {
  display: grid;
  gap: 8px;
}

.session-card {
  width: 100%;
  text-align: left;
  border: 1px solid rgba(18, 32, 51, 0.1);
  background: #fff;
  border-radius: 14px;
  padding: 10px 12px;
  box-shadow: 0 8px 18px rgba(18, 32, 51, 0.06);
}

.session-card.continuation {
  opacity: 0.84;
}

.session-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
}

.session-meta,
.session-extra {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.manual-panel {
  padding: 16px;
  border-radius: 18px;
  background: rgba(15, 118, 110, 0.06);
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.manual-panel dl {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 8px 16px;
  margin: 0;
}

.manual-panel dt {
  font-weight: 800;
}

.credential-panel {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(18, 48, 74, 0.08), rgba(15, 118, 110, 0.08));
  border: 1px solid rgba(18, 48, 74, 0.1);
}

.credential-code {
  display: inline-flex;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(18, 32, 51, 0.1);
  font-weight: 800;
}

.muted {
  color: var(--ink-soft);
}

.footer-note {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

@media (max-width: 1200px) {
  .stats-grid,
  .triple-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .auth-layout,
  .layout-grid.admin,
  .layout-grid.workspace,
  .split-grid,
  .selection-grid {
    grid-template-columns: 1fr;
  }

  .workspace-sidebar {
    position: static;
  }
}

@media (max-width: 720px) {
  .shell-frame {
    padding: 12px;
  }

  .auth-panel,
  .auth-card,
  .workspace-sidebar,
  .workspace-main,
  .app-card {
    padding: 18px;
  }

  .stats-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .button-row,
  .toolbar-row,
  .stack-row,
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}

@media print {
  .workspace-sidebar,
  .topbar,
  .flash-wrap,
  .no-print {
    display: none !important;
  }

  .shell-frame,
  .workspace-main {
    padding: 0;
  }

  .workspace-main,
  .app-card {
    box-shadow: none;
    border: 1px solid #d7dce2;
  }
}