:root {
  --bg: #07120b;
  --panel: #0d1b10;
  --panel2: #102416;
  --text: #d8ffe2;
  --muted: #8fd8a6;
  --line: rgba(143, 216, 166, .35);
  --amber: #f0c36a;
  --red: #ff6b6b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at top left, #14371d 0, var(--bg) 42rem);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
}

.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(20px, 4vw, 56px);
}

.hero-card,
.projector,
.mobile-card,
.admin-card {
  border: 1px solid var(--line);
  background: rgba(13, 27, 16, .88);
  border-radius: 28px;
  padding: clamp(24px, 5vw, 56px);
  box-shadow: 0 20px 80px rgba(0,0,0,.35);
}

.admin-card + .admin-card { margin-top: 28px; }

.eyebrow {
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 800;
  margin-bottom: .75rem;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(3rem, 8vw, 7.5rem);
  line-height: .95;
}

.admin-card h1 { font-size: clamp(2rem, 4vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 3rem); margin: 0 0 1rem; }

.time-line,
.jumbo {
  font-size: clamp(1.7rem, 3vw, 3.5rem);
  margin: .5rem 0 2rem;
}

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

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 2rem 0;
}

.status-box {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
}

.label {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.7rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.value {
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 900;
}

.actions-card {
  background: rgba(16, 36, 22, .95);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
}

.inline-form {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin: 1rem 0;
}

input {
  background: #061108;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 16px;
  padding: 16px 18px;
  font-size: 1.25rem;
}

button {
  border: 0;
  border-radius: 16px;
  padding: 16px 22px;
  font-size: 1.25rem;
  font-weight: 900;
  cursor: pointer;
}

.primary { background: var(--amber); color: #161000; }
.secondary { background: #9ee8b2; color: #061108; }
.danger { background: var(--red); color: #190000; }
.full { width: 100%; margin-top: 1rem; }

.projector-grid {
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(320px, .8fr);
  gap: 44px;
  align-items: center;
}

.qr-wrap {
  background: white;
  padding: clamp(18px, 3vw, 40px);
  border-radius: 28px;
}

.qr-wrap img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.projector-stats {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 32px;
}

.huge {
  font-size: clamp(4rem, 10vw, 10rem);
  font-weight: 1000;
  line-height: .9;
}

.stat-line {
  font-size: clamp(1.5rem, 3vw, 3rem);
  margin-top: 1rem;
}

.mobile-card {
  max-width: 680px;
  margin: 0 auto;
}

.checkin-form label {
  display: block;
  font-size: 1.3rem;
  color: var(--muted);
  margin: 1rem 0 .5rem;
}

.checkin-form input {
  width: 100%;
  font-size: 2rem;
}

.success-card { text-align: center; }

.flash-stack { margin-bottom: 18px; }
.flash {
  border-radius: 16px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--panel2);
  border: 1px solid var(--line);
  font-weight: 700;
}
.flash.error { border-color: var(--red); color: #ffd5d5; }
.flash.success { border-color: #9ee8b2; color: #d8ffe2; }

.admin-form { display: grid; gap: 18px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.admin-form label { color: var(--muted); font-weight: 800; }
.admin-form input:not([type="checkbox"]) { display: block; width: 100%; margin-top: 8px; }
.checkbox-row { display: flex; align-items: center; gap: 10px; }
.checkbox-row input { width: 24px; height: 24px; }

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  font-size: 1rem;
}
th, td { border-bottom: 1px solid var(--line); padding: 12px; text-align: left; }
th { color: var(--amber); background: #061108; }
.danger-zone { margin-top: 20px; }

@media (max-width: 820px) {
  .status-grid, .projector-grid { grid-template-columns: 1fr; }
  .inline-form input, .inline-form button { width: 100%; }
}


.student-action-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: rgba(16, 36, 22, .95);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px 28px;
  margin: 2rem 0 1rem;
}

.student-action-card h2 {
  margin: 0 0 .35rem;
}

.student-action-card p {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.6rem);
}

.student-action-card.inactive {
  opacity: .65;
}

.big-button {
  display: inline-block;
  text-decoration: none;
  border-radius: 18px;
  padding: 20px 30px;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 1000;
  white-space: nowrap;
}

.teacher-controls {
  margin-top: 24px;
  max-width: 560px;
  opacity: .45;
  font-size: .9rem;
}

.teacher-controls[open] {
  opacity: .95;
}

.teacher-controls summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .95rem;
}

.teacher-controls .inline-form {
  margin-top: 12px;
}

.teacher-controls input {
  font-size: .95rem;
  padding: 10px 12px;
  max-width: 240px;
  border-radius: 12px;
}

.teacher-controls button {
  font-size: .95rem;
  padding: 10px 14px;
  border-radius: 12px;
}


.small-note {
  font-size: .95rem;
}

.text-link {
  color: var(--amber);
  font-weight: 800;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin: 1.5rem 0;
}

.summary-box {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}

.summary-value {
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 1000;
  line-height: 1;
}

.calendar-list {
  display: grid;
  gap: 10px;
  margin-top: 1rem;
}

.meeting-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  background: rgba(16, 36, 22, .75);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px 18px;
}

.meeting-status {
  text-align: right;
}

.pill {
  display: inline-block;
  border-radius: 999px;
  padding: 6px 12px;
  background: var(--amber);
  color: #161000;
  font-weight: 1000;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}

.muted-pill {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.status-late .pill {
  background: #ffcf7a;
}

.status-absent .pill {
  background: var(--red);
  color: #190000;
}

@media (max-width: 700px) {
  .meeting-row {
    grid-template-columns: 1fr;
  }
  .meeting-status {
    text-align: left;
  }
}