:root {
  --bg: #f5f5f5;
  --paper: #ffffff;
  --paper-strong: #ffffff;
  --ink: #243a5e;
  --muted: #6a7688;
  --line: #e0e0e0;
  --accent: #f2c230;
  --accent-hover: #f4c842;
  --accent-ink: #1a1a1a;
  --alert: #243a5e;
  --alert-soft: #fff8df;
  --shadow: none;
  font-family: "Aptos", "Segoe UI", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
}

button,
input {
  font: inherit;
}

.layout {
  max-width: 1320px;
  margin: 0 auto;
  padding: 16px;
}

.admin-button {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--accent-ink);
  background: var(--accent);
}

.hero-card,
.mini-card,
.agenda-card,
.setup-hint,
.sleep-card,
.admin-card,
.pin-form {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 16px 18px;
}

.hero-lessons {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.hero-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.eyebrow,
.section-label,
.meta-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.74rem;
  color: var(--ink);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 3.4vw, 2.55rem);
}

.clock-block {
  text-align: right;
}

.clock-time {
  font-size: clamp(1.7rem, 5.4vw, 3.45rem);
  line-height: 0.95;
  font-weight: 700;
}

.clock-date,
.muted {
  color: var(--muted);
}

.muted-light {
  color: rgba(255, 255, 255, 0.75);
}

.lesson-focus {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 14px;
  align-items: stretch;
}

.lesson-focus-secondary {
  grid-template-columns: 132px 1fr;
}

.countdown-ring {
  display: grid;
  place-items: center;
  padding: 14px;
  border-radius: 28px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.countdown-label,
.countdown-unit {
  color: var(--muted);
}

.countdown-minutes {
  font-size: clamp(2.5rem, 7.2vw, 4.7rem);
  font-weight: 800;
  line-height: 1;
  color: var(--ink);
}

.countdown-minutes-warning {
  color: #b93c2c;
}

.countdown-ring-secondary {
  background: var(--paper-strong);
}

.countdown-room {
  font-size: clamp(1.5rem, 4.2vw, 2.7rem);
  font-weight: 800;
  line-height: 1;
  color: var(--ink);
}

.lesson-focus-current .lesson-title {
  font-size: clamp(1.2rem, 2.1vw, 1.8rem);
}

.lesson-focus-current .lesson-range {
  font-size: 0.95rem;
}

.lesson-focus-current .meta-chip {
  min-width: 150px;
}

.lesson-focus-current .meta-chip strong {
  font-size: clamp(1rem, 2vw, 1.3rem);
}

.lesson-panel {
  padding: 2px 0;
}

.lesson-title {
  margin: 4px 0 8px;
  font-size: clamp(1.4rem, 3.2vw, 2.45rem);
  line-height: 1;
}

.lesson-range {
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-chip {
  min-width: 180px;
  padding: 9px 11px;
  border-radius: 22px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.meta-chip strong {
  display: block;
  margin-top: 5px;
  font-size: clamp(0.92rem, 2vw, 1.2rem);
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
  color: var(--ink);
}

.setup-hint {
  padding: 20px 24px;
  margin-top: 20px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.mini-card,
.agenda-card {
  padding: 18px;
}

.mini-card h3 {
  min-height: 58px;
  margin: 6px 0;
  font-size: 1.35rem;
}

.summary-card {
  min-width: 0;
}

.break-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 4px;
}

.break-grid-stacked {
  grid-template-columns: 1fr;
}

.break-block {
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.break-label {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.break-countdown {
  margin: 0 0 4px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
}

.summary-list {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.summary-item {
  display: grid;
  gap: 6px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.summary-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.summary-head .muted {
  white-space: nowrap;
}

.summary-compact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 0.98rem;
}

.mini-card-alert {
  background: var(--alert-soft);
  border-color: var(--accent);
}

.mini-card-alert .section-label,
.mini-card-alert h3,
.mini-card-alert .mini-pill {
  color: var(--ink);
}

.mini-card-alert .mini-pill {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.agenda-card {
  margin-top: 14px;
}

.meeting-row {
  margin-top: 14px;
}

.notes-form {
  display: grid;
  grid-template-columns: 180px 1fr auto auto;
  gap: 10px;
  margin-top: 14px;
}

.exams-form {
  grid-template-columns: 1fr 1fr 180px auto;
}

.note-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--paper-strong);
  color: var(--ink);
}

.note-input-wide {
  min-width: 0;
}

.note-flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 6px;
  color: var(--ink);
  white-space: nowrap;
}

.summary-item-important strong,
.agenda-item-important strong {
  color: #b93c2c;
}

.summary-item-important,
.agenda-item-important {
  border-color: rgba(185, 60, 44, 0.22);
}

.agenda-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
}

.agenda-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.agenda-item {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 22px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.agenda-item strong,
.agenda-time strong {
  display: block;
}

.agenda-time {
  text-align: right;
}

.sleep-overlay,
.admin-panel {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  z-index: 30;
}

.sleep-overlay {
  background: #050505;
}

.sleep-card {
  max-width: 560px;
  padding: 28px;
  text-align: center;
  color: #fff;
  background: #243a5e;
}

.sleep-button {
  margin-top: 20px;
}

.admin-panel {
  background: rgba(36, 58, 94, 0.18);
}

.admin-card {
  width: min(460px, 100%);
  padding: 26px;
}

.pin-dialog {
  border: 0;
  padding: 0;
  background: transparent;
}

.pin-dialog::backdrop {
  background: rgba(36, 58, 94, 0.24);
}

.pin-form {
  width: min(420px, 92vw);
  padding: 26px;
}

.pin-input {
  width: 100%;
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--paper-strong);
  color: var(--ink);
}

.pin-error {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--ink);
}

.pin-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 18px;
}

.ghost-button,
.solid-button {
  border-radius: 999px;
  padding: 12px 18px;
  border: 1px solid #243a5e;
}

.ghost-button {
  background: #ffffff;
  color: var(--ink);
}

.solid-button {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.hidden {
  display: none;
}

code {
  padding: 0.2rem 0.35rem;
  border-radius: 8px;
  background: #fff8df;
  color: var(--ink);
}

@media (max-width: 980px) {
  .hero-lessons,
  .lesson-focus,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .break-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero-topline,
  .agenda-header,
  .agenda-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .summary-head .muted {
    white-space: normal;
  }

  .clock-block,
  .agenda-time {
    text-align: left;
  }
}