:root {
  --bg: #f6efe2;
  --card: #fffdf8;
  --ink: #2f2117;
  --muted: #725949;
  --line: #dcccb7;
  --primary: #5c3b24;
  --primary-dark: #3e2718;
  --accent: #8b5e3c;
  --danger: #9e2f18;
  --success: #556b2f;
  --warn: #a46b2a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}

/* ── Header / Nav ── */
header {
  background: var(--primary);
  color: #fff;
  padding: 0.8rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 3px solid var(--accent);
}

header h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

header h1::before {
  content: "✦ ";
  color: #ecd8b7;
  font-size: 0.9rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

nav a {
  color: #f5e8d3;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.28rem 0.65rem;
  border-radius: 5px;
  font-size: 0.88rem;
  transition: background 0.15s;
}

nav a:hover {
  background: rgba(255,255,255,0.18);
  color: #fff;
}

/* ── Layout ── */
main {
  max-width: 1100px;
  margin: 1.2rem auto;
  padding: 0 1rem 2rem;
}

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.2rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 4px rgba(92,59,36,0.08);
}

.card h2, .card h3 {
  margin-top: 0;
  color: var(--primary);
  border-bottom: 2px solid var(--line);
  padding-bottom: 0.4rem;
}

.narrow { max-width: 520px; }

.item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
  background: #fcf7ef;
}

/* ── Forms ── */
label {
  display: block;
  margin: 0.4rem 0 0.2rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
}

input, textarea, select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  margin-bottom: 0.7rem;
  border: 1px solid #b0c4d8;
  border-radius: 6px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(139,94,60,0.18);
}

textarea { min-height: 90px; resize: vertical; }

button, .btn {
  background: var(--primary);
  color: #fff;
  border: 0;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
  width: auto;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.15s;
}

button:hover, .btn:hover { background: var(--primary-dark); }

.btn-secondary { background: #3d5566; }
.btn-secondary:hover { background: #2e4253; }

.btn-sm { padding: 0.28rem 0.6rem; font-size: 0.82rem; }

.inline-form {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.inline-form select, .inline-form button { width: auto; margin: 0; }

/* ── Stats grid ── */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.stats > div {
  background: var(--bg);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 8px;
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
}

/* ── Hero / Landing ── */
.hero {
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  padding: 1.6rem 1.4rem;
  border-radius: 10px;
  margin-bottom: 1rem;
}

.hero h1 { margin: 0 0 0.4rem; font-size: 1.6rem; }
.hero p { margin: 0 0 0.8rem; opacity: 0.9; }
.hero-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.hero .btn { background: #fff; color: var(--primary); font-weight: 700; }
.hero .btn-secondary { background: rgba(255,255,255,0.2); color: #fff; border: 1px solid rgba(255,255,255,0.5); }

/* ── Cambridge school banner (student dashboard) ── */
.school-banner {
  background: linear-gradient(135deg, #3e2718 0%, #5c3b24 50%, #8b5e3c 100%);
  color: #fff;
  border-radius: 10px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.school-banner-logo {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 3px solid rgba(255,255,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.school-banner-text h2 { margin: 0 0 0.2rem; font-size: 1.3rem; }
.school-banner-text p { margin: 0; font-size: 0.88rem; opacity: 0.85; }

.cambridge-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  padding: 0.2rem 0.7rem;
  font-size: 0.8rem;
  margin-top: 0.4rem;
}

/* ── Payment methods grid ── */
.payment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
  margin: 0.8rem 0;
}

.payment-method {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  background: #f7fbff;
}

.payment-method h4 {
  margin: 0 0 0.5rem;
  color: var(--primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.payment-method p {
  margin: 0.2rem 0;
  font-size: 0.88rem;
  color: var(--ink);
}

.payment-method .pm-icon {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
}

.pm-ecocash .pm-icon { background: #2e9c3c; }
.pm-cbz .pm-icon { background: #c0392b; }
.pm-innbucks .pm-icon { background: #8e44ad; }

/* ── Mark badge ── */
.mark-badge {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  min-width: 2.5rem;
  text-align: center;
}

/* ── Attendance rows ── */
.att-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.att-name { flex: 1; font-weight: 500; }

.att-opts {
  display: flex;
  gap: 0.8rem;
}

.att-opts label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 500;
  margin: 0;
  cursor: pointer;
  font-size: 0.9rem;
}

.att-opts input[type="radio"] { width: auto; margin: 0; }

/* ── Status messages ── */
.message { color: var(--danger); font-weight: 600; min-height: 1rem; }
.ok { color: var(--success); font-weight: 600; }
.warn { color: var(--warn); font-weight: 600; }

/* ── Video ── */
.video-wrap {
  position: relative;
  padding-top: 56.25%;
  margin-bottom: 0.8rem;
  border-radius: 8px;
  overflow: hidden;
}

.video-wrap iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  border: 0;
}

/* ── Subject checkboxes ── */
.checks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem;
  margin-bottom: 0.8rem;
  background: #f7fbff;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
  margin: 0;
  font-size: 0.9rem;
}

.check-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--primary);
}

/* ── Staff class blocks ── */
.class-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.class-block-header {
  background: var(--primary);
  color: #fff;
  padding: 0.7rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.class-subject { font-weight: 700; font-size: 1rem; }

.class-code {
  background: rgba(255,255,255,0.2);
  border-radius: 4px;
  padding: 0.1rem 0.5rem;
  font-size: 0.82rem;
  margin-left: 0.5rem;
}

.class-name-badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 20px;
  padding: 0.2rem 0.7rem;
  font-size: 0.85rem;
  color: #fff;
}

.class-block-body { padding: 0.8rem 1rem; }

/* ── Status badges ── */
.status-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-approved { background: #d4f4e2; color: #0a6b30; }
.status-pending { background: #fff3cd; color: #856404; }
.status-blocked { background: #fde8e8; color: #b42318; }

/* ── Small danger button (admin remove) ── */
.btn-danger-sm {
  background: #fde8e8;
  color: #b42318;
  border: 1px solid #f5c0bc;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 5px;
  cursor: pointer;
  width: auto;
}

.btn-danger-sm:hover { background: #b42318; color: #fff; }

/* ── School banner ── */
.school-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.school-banner-logo { font-size: 2.5rem; line-height: 1; }
.school-banner-text h2 { margin: 0; font-size: 1.2rem; }
.school-banner-text p { margin: 0.15rem 0; font-size: 0.9rem; opacity: 0.9; }
.cambridge-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  padding: 0.15rem 0.7rem;
  font-size: 0.78rem;
  margin-top: 0.2rem;
}

/* ── Accordion (Staff Dashboard collapsible sections) ── */
details.card > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--line);
  user-select: none;
  -webkit-user-select: none;
}
details.card > summary::-webkit-details-marker { display: none; }
details.card > summary h3 {
  margin: 0;
  color: var(--primary);
  border-bottom: none;
  padding-bottom: 0;
  flex: 1;
}
details.card > summary .acc-toggle {
  font-size: 1.1rem;
  color: var(--muted);
  transition: transform 0.2s;
  flex-shrink: 0;
  line-height: 1;
}
details.card[open] > summary .acc-toggle { transform: rotate(180deg); }
details.card > .acc-body { padding-top: 0.9rem; }
details.card:not([open]) > summary { border-bottom: none; padding-bottom: 0; }

/* ── Grade tier badges ── */
.grade-badge {
  display: inline-block;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.grade-platinum { background: #6a0dad; color: #fff; }
.grade-gold { background: #b8860b; color: #fff; }
.grade-silver { background: #607d8b; color: #fff; }
.grade-bronze { background: #7d4420; color: #fff; }
.grade-distinction { background: #0a7d3a; color: #fff; }
.grade-merit { background: #8b5e3c; color: #fff; }
.grade-pass { background: #5a6a7a; color: #fff; }
.grade-fail { background: #b42318; color: #fff; }

/* ── Submission marking card ── */
.submission-item {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 1rem;
  background: #fcf7ef;
}
.submission-item.graded { border-left-color: #0a7d3a; }
.mark-form { background: #f0f7ff; border: 1px solid var(--line); border-radius: 8px; padding: 0.8rem; margin-top: 0.6rem; }
.mark-form label { font-size: 0.85rem; margin-top: 0.3rem; }
.mark-form input, .mark-form select, .mark-form textarea { margin-bottom: 0.5rem; }
.mark-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.mark-row > * { flex: 1; min-width: 120px; }
.mark-row select { min-width: 150px; }

/* ── Footer ── */
footer {
  text-align: center;
  color: var(--muted);
  padding: 1.2rem;
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
  margin-top: 1rem;
}

/* ── Responsive ── */
@media (max-width: 700px) {
  header { flex-direction: column; align-items: flex-start; }
  nav { gap: 0.3rem; }
  .hero-actions { flex-direction: column; }
  .payment-grid { grid-template-columns: 1fr; }
  .att-opts { flex-wrap: wrap; gap: 0.5rem; }
}

/* ── Messaging ── */
.msg-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  height: calc(100vh - 180px);
  min-height: 400px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.msg-sidebar {
  border-right: 1px solid var(--line);
  overflow-y: auto;
  background: var(--bg);
}
.msg-sidebar-title {
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.8rem 1rem 0.4rem;
}
.conv-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: background 0.1s;
}
.conv-row:hover, .conv-active { background: #e8f0f8; }
.conv-unread { background: #f0f7ff; }
.conv-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.conv-info { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.conv-name { font-weight: 600; font-size: 0.92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.conv-role { font-size: 0.78rem; color: var(--muted); text-transform: capitalize; }
.conv-badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 20px;
  flex-shrink: 0;
}
.msg-main { display: flex; flex-direction: column; overflow: hidden; }
.msg-chat-header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.msg-chat {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.msg-bubble { max-width: 70%; display: flex; flex-direction: column; }
.msg-mine { align-self: flex-end; align-items: flex-end; }
.msg-theirs { align-self: flex-start; }
.msg-text {
  padding: 0.5rem 0.8rem;
  border-radius: 12px;
  font-size: 0.92rem;
  word-break: break-word;
  line-height: 1.4;
}
.msg-mine .msg-text { background: var(--primary); color: #fff; border-bottom-right-radius: 3px; }
.msg-theirs .msg-text { background: var(--bg); border: 1px solid var(--line); border-bottom-left-radius: 3px; }
.msg-time { font-size: 0.72rem; color: var(--muted); margin-top: 0.2rem; padding: 0 0.3rem; }
.msg-send-form {
  display: flex;
  gap: 0.5rem;
  border-top: 1px solid var(--line);
  padding: 0.7rem;
}
.msg-send-form input { margin: 0; border-radius: 20px; flex: 1; }
.msg-send-form button { border-radius: 20px; padding: 0.5rem 1.2rem; }
.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e53935;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 20px;
  padding: 0 4px;
  vertical-align: middle;
  margin-left: 2px;
}
@media (max-width: 700px) {
  .msg-layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; height: auto; }
  .msg-sidebar { max-height: 200px; border-right: none; border-bottom: 1px solid var(--line); }
  .msg-main { min-height: 300px; }
}

/* ── Publish panel ── */
.publish-panel {
  background: #f0f7ff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.publish-summary {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}
.pub-stat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}
.pub-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0 0.5rem;
}
.pub-count.draft { background: #fff3cd; color: #856404; border: 1px solid #ffc107; }
.pub-count.live { background: #d1fae5; color: #065f46; border: 1px solid #34d399; }

/* ── Mark grid table ── */
.mark-grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.mark-grid th {
  background: var(--primary);
  color: #fff;
  padding: 0.45rem 0.6rem;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}
.mark-grid td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.mark-grid tr:hover td { background: #f5f9ff; }