/* Components: reusable patterns. Each maps to an Elementor widget/global widget. */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: 0.75rem 1.35rem; border-radius: var(--radius-pill); border: 1px solid transparent;
  font-weight: var(--fw-semibold); font-size: var(--fs-sm); line-height: 1.2; text-decoration: none;
  transition: background var(--dur-base) var(--ease), color var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
  white-space: nowrap;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-700); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--accent { background: var(--color-secondary); color: #fff; }
.btn--accent:hover { background: #1a43b8; color: #fff; }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn--ghost { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-border-strong); background: var(--color-surface-alt); color: var(--color-text); }
.btn--light { background: #fff; color: var(--color-primary); }
.btn--light:hover { background: #f1f1ef; color: var(--color-primary); }
.btn--outline-light { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.3); backdrop-filter: blur(8px); }
.btn--outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }
.btn--danger { background: transparent; color: var(--color-error); border-color: #e7b7b3; }
.btn--danger:hover { background: var(--color-error-100); color: var(--color-error); }
.btn--sm { padding: 0.45rem 0.85rem; font-size: var(--fs-xs); }
.btn--lg { padding: 0.9rem 1.6rem; font-size: var(--fs-base); }
.btn--block { width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.55; pointer-events: none; }
.btn-group { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.link-arrow { font-weight: var(--fw-medium); text-decoration: none; color: var(--color-text); display: inline-flex; align-items: center; gap: var(--space-1); }
.link-arrow::after { content: "→"; transition: transform var(--dur-base) var(--ease); }
.link-arrow:hover::after { transform: translateX(3px); }

/* ---------- Badges & tags ---------- */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  font-size: var(--fs-xs); font-weight: var(--fw-semibold); padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill); background: var(--color-surface-alt); color: var(--color-text); line-height: 1.5; font-weight: var(--fw-medium);
}
.badge--accent { background: var(--color-secondary-100); color: var(--color-secondary); }
.badge--success { background: var(--color-success-100); color: var(--color-success); }
.badge--warning { background: var(--color-warning-100); color: var(--color-warning); }
.badge--error { background: var(--color-error-100); color: var(--color-error); }
.badge--neutral { background: var(--color-surface-alt); color: var(--color-text-muted); }
.demo-tag {
  display: inline-block; font-size: 0.6875rem; font-weight: var(--fw-semibold); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--color-warning); border: 1px dashed currentColor; border-radius: var(--radius-sm); padding: 0 0.4rem; vertical-align: middle;
}

/* ---------- Generic card ---------- */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.card--hover { transition: box-shadow var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease); }
.card--hover:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--color-border-strong); }
.card h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--color-secondary); }
.card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); font-size: var(--fs-xs); color: var(--color-text-muted); margin-bottom: var(--space-3); }
.card__header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.card__header h2 { font-size: var(--fs-lg); margin: 0; }

/* ---------- Feature card ---------- */
.feature-card { display: flex; flex-direction: column; gap: var(--space-3); }
.feature-card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-md); display: grid; place-items: center;
  background: var(--color-surface-alt); color: var(--color-text);
}
.feature-card__icon svg { width: 24px; height: 24px; }
.feature-card p { color: var(--color-text-muted); margin: 0; font-size: var(--fs-sm); }

/* ---------- Notice card ---------- */
.notice-card { display: flex; gap: var(--space-4); align-items: flex-start; }
.notice-card__date {
  flex: none; width: 64px; text-align: center; border-radius: var(--radius-md);
  background: var(--color-surface-alt); color: var(--color-text); padding: var(--space-2) 0; line-height: 1.1;
}
.notice-card__date strong { display: block; font-size: var(--fs-xl); letter-spacing: -0.03em; }
.notice-card__date span { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.06em; }
.notice-card p { font-size: var(--fs-sm); color: var(--color-text-muted); margin: 0; }
.notice-card--pinned { box-shadow: inset 3px 0 0 var(--color-secondary); }
.notice-list { display: grid; gap: var(--space-4); }

/* ---------- Faculty card ---------- */
.faculty-card { text-align: center; padding: var(--space-6) var(--space-5); display: flex; flex-direction: column; align-items: center; }
.faculty-card .avatar { margin-bottom: var(--space-4); }
.faculty-card__title { color: var(--color-text-muted); font-size: var(--fs-sm); font-weight: var(--fw-semibold); margin-bottom: var(--space-2); }
.faculty-card p { font-size: var(--fs-sm); color: var(--color-text-muted); }
.faculty-card .link-arrow { margin-top: auto; font-size: var(--fs-sm); }

/* ---------- Event card ---------- */
.event-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.event-card__media { aspect-ratio: 16 / 9; background: var(--color-primary-100); position: relative; }
.event-card__media img { width: 100%; height: 100%; object-fit: cover; }
.event-card__media .badge { position: absolute; top: var(--space-3); left: var(--space-3); }
.event-card__body { padding: var(--space-5); display: flex; flex-direction: column; flex: 1; }
.event-card__body p { font-size: var(--fs-sm); color: var(--color-text-muted); }
.event-card__body .link-arrow { margin-top: auto; font-size: var(--fs-sm); }
.meta-list { list-style: none; padding: 0; margin: 0 0 var(--space-3); display: grid; gap: var(--space-1); font-size: var(--fs-sm); color: var(--color-text-muted); }
.meta-list li { display: flex; gap: var(--space-2); align-items: center; }
.meta-list svg { width: 16px; height: 16px; flex: none; color: var(--color-secondary); }

/* ---------- Avatar ---------- */
.avatar {
  --size: 48px; width: var(--size); height: var(--size); border-radius: 50%; flex: none;
  display: grid; place-items: center; font-weight: var(--fw-semibold); font-size: calc(var(--size) * 0.36);
  background: var(--color-surface-alt); color: var(--color-text); overflow: hidden; letter-spacing: 0.02em;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar--sm { --size: 36px; }
.avatar--lg { --size: 96px; }
.avatar--xl { --size: 136px; border: 4px solid #fff; box-shadow: var(--shadow-md); }
.avatar[data-tone="1"] { background: #e8eefc; color: #1f4fd8; }
.avatar[data-tone="2"] { background: #f3efe7; color: #6b5420; }
.avatar[data-tone="3"] { background: #e6f2ec; color: #1c6b45; }
.avatar[data-tone="4"] { background: #efebf7; color: #553c8b; }
.avatar[data-tone="5"] { background: #f7e9e7; color: #9a3a2f; }

/* ---------- Member card (directory) ---------- */
.member-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 339px) { .member-grid { grid-template-columns: 1fr; } }
@media (min-width: 640px) { .member-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .member-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.member-card { text-align: center; padding: var(--space-5) var(--space-3); display: flex; flex-direction: column; align-items: center; gap: var(--space-1); }
.member-card .avatar { --size: 72px; margin-bottom: var(--space-2); }
.member-card h3 { font-family: var(--font-body); font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--color-text); margin: 0; }
.member-card__batch { font-size: var(--fs-xs); color: var(--color-text-muted); }
.member-card__role { font-size: var(--fs-xs); color: var(--color-text); font-weight: var(--fw-medium); }
.member-card__org { font-size: var(--fs-xs); color: var(--color-text-muted); min-height: 1.2em; }
.member-card .btn { margin-top: var(--space-3); }

/* ---------- Post card (community) ---------- */
.post-card__author { display: flex; gap: var(--space-3); align-items: center; margin-bottom: var(--space-3); }
.post-card__author a { font-weight: var(--fw-semibold); color: var(--color-text); text-decoration: none; }
.post-card__author a:hover { text-decoration: underline; }
.post-card__author small { display: block; color: var(--color-text-muted); font-size: var(--fs-xs); }
.post-card__body { white-space: pre-line; }
.post-card blockquote { margin: 0 0 var(--space-4); padding: var(--space-4) var(--space-5); border-left: 3px solid var(--color-secondary); background: var(--color-secondary-100); font-size: var(--fs-lg); letter-spacing: -0.02em; border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.post-card__media { border-radius: var(--radius-md); overflow: hidden; margin-bottom: var(--space-4); aspect-ratio: 16/9; }
.post-card__media img { width: 100%; height: 100%; object-fit: cover; }
.post-card__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); border-top: 1px solid var(--color-border); padding-top: var(--space-3); margin-top: var(--space-3); }
.post-card__actions .push { margin-left: auto; }

/* ---------- Forms ---------- */
.form { display: grid; gap: var(--space-4); }
.form-row { display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .form-row--2 { grid-template-columns: 1fr 1fr; } .form-row--3 { grid-template-columns: repeat(3, 1fr); } }
.field { display: grid; gap: var(--space-1); align-content: start; min-width: 0; }
.field > * { min-width: 0; }
.field label, .field legend { font-weight: var(--fw-semibold); font-size: var(--fs-sm); color: var(--color-text); }
.field .hint { font-size: var(--fs-xs); color: var(--color-text-muted); }
.req { color: var(--color-error); }
.input, .select, .textarea {
  width: 100%; padding: 0.75rem 0.95rem; border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: var(--color-surface); color: var(--color-text); min-height: 44px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.textarea { min-height: 120px; resize: vertical; }
.select { appearance: none; padding-right: 2.25rem; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235a6473' stroke-width='1.6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.85rem center; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-border-strong); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--color-focus); box-shadow: 0 0 0 4px rgba(31, 79, 216, 0.12); }
.input[readonly] { background: var(--color-surface-alt); color: var(--color-text-muted); }
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: var(--color-error); }
.field-error { display: none; font-size: var(--fs-xs); color: var(--color-error); font-weight: var(--fw-medium); }
.field.has-error .field-error { display: block; }
.input-group { position: relative; display: flex; }
.input-group .input { padding-right: 4.5rem; }
.input-group__btn { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: none; border: 0; color: var(--color-secondary); font-size: var(--fs-xs); font-weight: var(--fw-semibold); padding: var(--space-2); border-radius: var(--radius-sm); }
.check { display: flex; gap: var(--space-2); align-items: flex-start; font-size: var(--fs-sm); }
.check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--color-primary); flex: none; }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.radio-cards { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.radio-card { position: relative; }
.radio-card input { position: absolute; opacity: 0; }
.radio-card label { display: block; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border-strong); border-radius: var(--radius-md); cursor: pointer; font-weight: var(--fw-medium); font-size: var(--fs-sm); background: var(--color-surface); }
.radio-card input:checked + label { border-color: var(--color-text); background: var(--color-surface); color: var(--color-text); box-shadow: inset 0 0 0 1px var(--color-text); }
.radio-card input:focus-visible + label { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: flex-end; }

/* ---------- Alerts ---------- */
.alert { display: flex; gap: var(--space-3); padding: var(--space-4); border-radius: var(--radius-md); border: 1px solid; font-size: var(--fs-sm); }
.alert p { margin: 0; }
.alert--info { background: var(--color-secondary-100); border-color: #d3defb; color: #173c9f; }
.alert--success { background: var(--color-success-100); border-color: #b9dcc8; color: var(--color-success); }
.alert--warning { background: var(--color-warning-100); border-color: #f0d9ae; color: #6b4500; }
.alert--error { background: var(--color-error-100); border-color: #efc2be; color: var(--color-error); }

/* ---------- Filters / toolbar ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: end; margin-bottom: var(--space-5); }
.toolbar .field { flex: 1 1 180px; }
.toolbar .field--search { flex: 2 1 260px; }
.results-count { font-size: var(--fs-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); }
.chip-group { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-5); }
.chip {
  border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius-pill);
  padding: 0.45rem 1rem; font-size: var(--fs-sm); font-weight: var(--fw-medium); color: var(--color-text);
}
.chip:hover { border-color: var(--color-border-strong); }
.chip[aria-pressed="true"] { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ---------- Pagination ---------- */
.pagination { display: flex; flex-wrap: wrap; gap: var(--space-2); justify-content: center; align-items: center; margin-top: var(--space-6); }
.pagination button {
  min-width: 40px; height: 40px; padding: 0 var(--space-3); border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-surface); font-size: var(--fs-sm); font-weight: var(--fw-medium);
}
.pagination button:hover:not([disabled]) { border-color: var(--color-primary); color: var(--color-primary); }
.pagination button[aria-current="page"] { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination button[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ---------- Empty / loading / permission states ---------- */
.state {
  text-align: center; padding: var(--space-8) var(--space-5); border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg); background: var(--color-surface); color: var(--color-text-muted);
}
.state h3 { color: var(--color-text); font-family: var(--font-body); font-size: var(--fs-md); }
.state svg { width: 40px; height: 40px; margin: 0 auto var(--space-3); color: var(--color-border-strong); }
.skeleton { background: linear-gradient(90deg, #eceae5 25%, #f6f4f0 50%, #eceae5 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius-sm); height: 14px; margin-bottom: var(--space-2); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.table th, .table td { text-align: left; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); font-size: var(--fs-sm); vertical-align: top; }
.table thead th { background: var(--color-surface-alt); font-weight: var(--fw-medium); color: var(--color-text-muted); white-space: nowrap; font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.04em; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody th { font-weight: var(--fw-semibold); white-space: nowrap; }
@media (max-width: 767px) {
  .table--stack thead { display: none; }
  .table--stack tr { display: block; border-bottom: 1px solid var(--color-border); padding: var(--space-3) 0; }
  .table--stack th, .table--stack td { display: grid; grid-template-columns: 110px 1fr; gap: var(--space-3); border: 0; padding: var(--space-1) var(--space-4); }
  .table--stack td::before, .table--stack tbody th::before { content: attr(data-label); font-weight: var(--fw-semibold); color: var(--color-text-muted); font-size: var(--fs-xs); }
}

/* ---------- Tabs ---------- */
.tabs [role="tablist"] { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-5); overflow-x: auto; }
.tabs [role="tab"] { background: none; border: 0; padding: var(--space-3) var(--space-4); font-weight: var(--fw-semibold); font-size: var(--fs-sm); color: var(--color-text-muted); border-bottom: 3px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs [role="tab"][aria-selected="true"] { color: var(--color-text); border-color: var(--color-text); }

/* ---------- Accordion ---------- */
.accordion { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); overflow: hidden; }
.accordion details + details { border-top: 1px solid var(--color-border); }
.accordion summary { cursor: pointer; padding: var(--space-5); font-weight: var(--fw-medium); color: var(--color-text); font-size: var(--fs-md); list-style: none; display: flex; justify-content: space-between; gap: var(--space-3); }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; font-size: var(--fs-lg); line-height: 1; }
.accordion details[open] summary::after { content: "–"; }
.accordion details > div { padding: 0 var(--space-5) var(--space-5); color: var(--color-text-muted); }

/* ---------- Media placeholder ---------- */
.media-frame { border-radius: var(--radius-xl); overflow: hidden; background: var(--color-surface-alt); position: relative; }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-caption { position: absolute; left: var(--space-3); bottom: var(--space-3); background: rgba(12,35,67,0.8); color: #fff; font-size: var(--fs-xs); padding: 0.2rem 0.5rem; border-radius: var(--radius-sm); }

/* ---------- Lists ---------- */
.check-list { list-style: none; padding: 0; display: grid; gap: var(--space-3); }
.check-list li { display: flex; gap: var(--space-3); }
.check-list li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 3px; border-radius: 50%; background: var(--color-secondary-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 6.2l2.3 2.3 4.7-5' fill='none' stroke='%231f4fd8' stroke-width='1.8'/%3E%3C/svg%3E") center no-repeat; }
.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-4); }
.info-list li { display: flex; gap: var(--space-3); }
.info-list svg { width: 20px; height: 20px; flex: none; color: var(--color-text-muted); margin-top: 2px; }
.info-list strong { display: block; font-size: var(--fs-sm); }
.tag-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tag-list li { background: var(--color-surface-alt); border: 1px solid var(--color-border); border-radius: var(--radius-pill); padding: 0.25rem 0.75rem; font-size: var(--fs-sm); }

/* ---------- Timeline ---------- */
.timeline { list-style: none; padding: 0; margin: 0; position: relative; }
.timeline li { position: relative; padding-left: var(--space-6); padding-bottom: var(--space-5); }
.timeline li::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 0; width: 2px; background: var(--color-border); }
.timeline li:last-child::before { display: none; }
.timeline li::after { content: ""; position: absolute; left: 1px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 2px solid var(--color-text); }
.timeline h4 { margin: 0; }
.timeline p { margin: 0; font-size: var(--fs-sm); color: var(--color-text-muted); }

/* ---------- Toast ---------- */
.toast { position: fixed; bottom: var(--space-5); left: 50%; transform: translateX(-50%); background: var(--color-text); color: #fff; padding: var(--space-3) var(--space-5); border-radius: var(--radius-pill); box-shadow: var(--shadow-lg); font-size: var(--fs-sm); z-index: var(--z-overlay); max-width: calc(100% - 2rem); }
.btn svg { width: 16px; height: 16px; flex: none; }
@media (max-width: 599px) {
  .toolbar { display: grid; grid-template-columns: 1fr 1fr; }
  .toolbar .field--search { grid-column: 1 / -1; }
}

/* ---------- Segmented control (Student / Teacher) ---------- */
.segmented { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; padding: 4px; margin-bottom: var(--space-5); background: #eef1f6; border-radius: var(--radius-pill); position: relative; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label { text-align: center; padding: 0.8rem 1rem; border-radius: var(--radius-pill); font-weight: var(--fw-semibold); color: #5b6478; cursor: pointer; transition: background var(--dur-base) var(--ease), color var(--dur-base), box-shadow var(--dur-base); }
.segmented label:hover { color: var(--color-text); }
.segmented input:checked + label { background: #fff; color: var(--color-secondary); box-shadow: 0 2px 8px rgba(10, 10, 10, 0.08), 0 1px 2px rgba(10, 10, 10, 0.06); }
.segmented input:focus-visible + label { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.select--sm { min-height: 34px; padding: 0.35rem 2rem 0.35rem 0.8rem; font-size: var(--fs-xs); border-radius: var(--radius-pill); width: auto; background-position: right 0.7rem center; }

.toolbar--card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); }
.toolbar .field--narrow { flex: 0 1 110px; }
.alert svg { width: 20px; height: 20px; flex: none; }
.alert p { display: flex; gap: var(--space-2); align-items: flex-start; }

/* ---------- Upload dropzone ---------- */
.dropzone { position: relative; }
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone label { display: flex; flex-direction: column; align-items: center; gap: var(--space-1); text-align: center; padding: var(--space-5); border: 1.5px dashed var(--color-border-strong); border-radius: var(--radius-lg); background: var(--color-bg); cursor: pointer; font-size: var(--fs-sm); transition: border-color var(--dur-fast), background var(--dur-fast); }
.dropzone label:hover, .dropzone.is-over label { border-color: var(--color-secondary); background: var(--color-secondary-100); }
.dropzone input:focus-visible + label { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.dropzone small { color: var(--color-text-muted); }
.dropzone--lg label { padding: var(--space-7) var(--space-5); }
.dropzone__icon { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--color-text); color: #fff; font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.dropzone__files { list-style: none; margin: var(--space-3) 0 0; padding: 0; display: grid; gap: var(--space-2); }
.dropzone__files li { display: flex; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); font-size: var(--fs-sm); }
.dropzone__files small { color: var(--color-text-muted); white-space: nowrap; }

/* ---------- Drawer (native dialog) ---------- */
.drawer { border: 0; padding: 0; margin: 0 0 0 auto; height: 100dvh; max-height: none; width: min(520px, 100vw); background: var(--color-surface); box-shadow: var(--shadow-lg); }
.drawer[open] { animation: drawer-in var(--dur-slow) var(--ease); }
@keyframes drawer-in { from { transform: translateX(100%); } }
.drawer::backdrop { background: rgba(10,10,10,0.4); backdrop-filter: blur(4px); }
.drawer .form { padding: var(--space-6); gap: var(--space-5); }
.drawer__head { display: flex; justify-content: space-between; gap: var(--space-3); align-items: flex-start; }
.drawer__head h2 { font-size: var(--fs-xl); margin: var(--space-1) 0; }

/* ---------- OTP code ---------- */
.otp-head { text-align: center; }
.otp-head h2 { font-size: var(--fs-xl); margin: var(--space-3) 0 var(--space-2); }
.otp-icon { display: inline-grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--color-secondary-100); color: var(--color-secondary); font-size: 1.5rem; }
.otp { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-2); }
.otp .input { text-align: center; font-size: var(--fs-xl); font-weight: var(--fw-semibold); padding: 0; height: 56px; font-family: var(--font-mono); }
.link-btn { background: none; border: 0; padding: 0; color: var(--color-secondary); text-decoration: underline; font-size: inherit; }
.steps li.is-done { border-color: var(--color-success); color: var(--color-success); }

/* ---------- Class updates ---------- */
.cu-list { display: grid; gap: var(--space-3); }
.cu { display: grid; grid-template-columns: auto 1fr; gap: var(--space-4); padding: var(--space-4) var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.cu h3 { font-size: var(--fs-base); margin: 0 0 var(--space-1); }
.cu p { margin: 0 0 var(--space-1); }
.cu small { color: var(--color-text-muted); font-size: var(--fs-xs); }
.cu__when { font-weight: var(--fw-semibold); }
.cu__type { align-self: start; font-size: var(--fs-xs); font-weight: var(--fw-semibold); padding: 0.25rem 0.65rem; border-radius: var(--radius-pill); background: var(--color-surface-alt); white-space: nowrap; }
.cu--rescheduled .cu__type, .cu--room-change .cu__type, .cu--extra-class .cu__type { background: var(--color-secondary-100); color: var(--color-secondary); }
.cu--cancelled .cu__type { background: var(--color-error-100); color: var(--color-error); }
.cu--decision .cu__type { background: var(--color-warning-100); color: var(--color-warning); }
@media (max-width: 479px) { .cu { grid-template-columns: 1fr; } }

/* ---------- Icon-only buttons with hover tooltip (title shown on hover/focus) ---------- */
.icon-btn {
  position: relative; display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.18); color: #fff;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); cursor: pointer;
  transition: background var(--dur-base), transform var(--dur-base) var(--ease);
}
.icon-btn:hover, .icon-btn:focus-visible { background: rgba(255, 255, 255, 0.32); color: #fff; transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn[data-tip]::after {
  content: attr(data-tip); position: absolute; top: calc(100% + 8px); right: 0; white-space: nowrap; pointer-events: none;
  background: var(--color-text); color: #fff; font-size: var(--fs-xs); font-weight: var(--fw-medium); padding: 0.35rem 0.6rem; border-radius: var(--radius-sm);
  opacity: 0; transform: translateY(-4px); transition: opacity var(--dur-fast), transform var(--dur-fast);
}
.icon-btn:hover::after, .icon-btn:focus-visible::after { opacity: 1; transform: none; }