/* ══════════════════════════════════════════
   Shared UI Components
══════════════════════════════════════════ */

/* ── Section label ── */
.section-label {
  font-size: 0.75rem; font-weight: 600; color: var(--t3);
  text-transform: uppercase; letter-spacing: .6px;
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--b1); }

/* ── Buttons ── */
.btn-ghost {
  padding: 0.5625rem 1.125rem;
  background: var(--s2); border: 1px solid var(--b1); color: var(--t2);
  border-radius: var(--rsm); font-size: 0.84375rem; font-weight: 600; cursor: pointer;
  transition: color var(--tr), background var(--tr);
}
.btn-ghost:hover  { color: var(--t1); background: var(--s3); }

.btn-accent {
  padding: 0.5625rem 1.25rem;
  background: var(--ac); border: none; color: white;
  border-radius: var(--rsm); font-size: 0.84375rem; font-weight: 600; cursor: pointer;
  transition: opacity var(--tr);
}
.btn-accent:hover { opacity: .85; }

/* ── FAB (floating action button) ── */
.fab {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  width: 3.25rem; height: 3.25rem; border-radius: 50%;
  background: var(--ac); color: white; border: none; cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,.5);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--tr), box-shadow var(--tr);
  z-index: 50;
}
.fab:hover  { transform: scale(1.08); box-shadow: 0 6px 28px rgba(99,102,241,.6); }
.fab svg    { width: 1.375rem; height: 1.375rem; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 3rem 1.25rem; color: var(--t3); }
.empty-state svg      { width: 2.25rem; height: 2.25rem; opacity: .25; display: block; margin: 0 auto 0.625rem; }
.empty-state strong   { font-size: 0.9375rem; color: var(--t2); }
.empty-state p        { font-size: 0.8125rem; margin-top: 0.25rem; }

/* ── Toast notifications ── */
#toast-wrap {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 0.5rem;
  z-index: 500; pointer-events: none;
}
.toast {
  background: var(--s2); border: 1px solid var(--b2); border-radius: 0.625rem;
  padding: 0.625rem 1rem; font-size: 0.84375rem; font-weight: 500;
  display: flex; align-items: center; gap: 0.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.4); white-space: nowrap;
  animation: tIn .3s ease forwards; pointer-events: all;
}
.toast.out { animation: tOut .25s ease forwards; }
@keyframes tIn  { from { opacity:0; transform:translateY(0.5rem) scale(.96) } to { opacity:1; transform:none } }
@keyframes tOut { from { opacity:1; transform:none } to { opacity:0; transform:translateY(0.375rem) scale(.96) } }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.72); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; padding: 1.25rem;
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease;
}
.modal-overlay.open         { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--s1); border: 1px solid var(--b2); border-radius: 1.125rem;
  padding: 1.625rem; width: 100%; max-width: 27.5rem;
  max-height: calc(100dvh - 2.5rem); overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  transform: scale(.95) translateY(0.625rem);
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.modal-overlay.open .modal-box { transform: scale(1) translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.375rem; }
.modal-title  { font-size: 1.0625rem; font-weight: 700; }
.modal-close  {
  background: none; border: none; color: var(--t3); cursor: pointer;
  padding: 0.375rem; border-radius: var(--rxs); display: flex;
  transition: color var(--tr), background var(--tr);
}
.modal-close:hover  { color: var(--t1); background: var(--s2); }
.modal-close svg    { width: 1.125rem; height: 1.125rem; }
.modal-footer {
  display: flex; justify-content: flex-end; gap: 0.625rem;
  margin-top: 1.375rem; padding-top: 1.125rem; border-top: 1px solid var(--b1);
}

/* ── Confirm dialog ── */
.confirm-box {
  max-width: 20rem !important;
  text-align: center;
  padding: 2rem 1.75rem 1.75rem !important;
}
.confirm-icon {
  width: 3.5rem; height: 3.5rem; border-radius: 50%;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.2);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
}
.confirm-icon svg { width: 1.375rem; height: 1.375rem; color: var(--red); }
.confirm-title    { font-size: 1.0625rem; font-weight: 700; letter-spacing: -.2px; margin-bottom: 0.5rem; }
.confirm-msg      { font-size: 0.84375rem; color: var(--t3); line-height: 1.55; margin-bottom: 1.75rem; }
.confirm-actions  { display: flex; gap: 0.625rem; }
.confirm-actions .btn-ghost { flex: 1; justify-content: center; }
.btn-danger {
  flex: 1;
  padding: 0.625rem 1.25rem;
  background: var(--red); border: none; color: white;
  border-radius: var(--rsm); font-size: 0.84375rem; font-weight: 600; cursor: pointer;
  transition: opacity var(--tr), transform var(--tr);
}
.btn-danger:hover  { opacity: .85; }
.btn-danger:active { transform: scale(.97); }

/* ════ TODAY VIEW ══════════════════════════════════════════ */
.today-grid {
  display: grid;
  grid-template-columns: 1fr 18.75rem;
  gap: 1.75rem;
}

/* ── Greeting row + day picker ── */
.greeting-row {
  display: flex; align-items: flex-start; justify-content: space-between;
  flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.25rem;
}
.greeting-text h2 { font-size: 1.3125rem; font-weight: 700; letter-spacing: -.4px; }
.greeting-text p  { font-size: 0.8125rem; color: var(--t3); margin-top: 0.125rem; }

.day-picker {
  display: flex; align-items: center; gap: 0.375rem;
  background: var(--s1); border: 1px solid var(--b1);
  border-radius: var(--r); padding: 0.3125rem;
}
.dp-arrow {
  width: 1.875rem; height: 1.875rem; border-radius: var(--rxs);
  background: none; border: none; color: var(--t3); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: color var(--tr), background var(--tr);
}
.dp-arrow:hover:not(:disabled) { color: var(--t1); background: var(--s2); }
.dp-arrow:disabled              { opacity: .3; cursor: not-allowed; }
.dp-arrow svg                   { width: 0.875rem; height: 0.875rem; }
.dp-days                        { display: flex; gap: 0.1875rem; }
.dp-day {
  padding: 0.3125rem 0.625rem; border-radius: var(--rxs);
  font-size: 0.8125rem; font-weight: 500; color: var(--t3);
  cursor: pointer; border: none; background: none;
  transition: color var(--tr), background var(--tr);
}
.dp-day:hover             { color: var(--t2); background: var(--s2); }
.dp-day.active            { background: var(--ac); color: white; font-weight: 600; }
.dp-day.is-today          { color: var(--ac); }
.dp-day.active.is-today   { color: white; }

/* ── Stats chips ── */
.today-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 0.875rem; margin-bottom: 1.25rem; }
.stat-chip   {
  background: var(--s1); border: 1px solid var(--b1);
  border-radius: var(--rsm); padding: 1rem 1.125rem;
  transition: border-color var(--tr);
}
.stat-chip:hover     { border-color: var(--b2); }
.stat-chip-val { font-size: 1.5rem; font-weight: 700; letter-spacing: -.5px; line-height: 1; margin-bottom: 0.3125rem; }
.stat-chip-lbl { font-size: 0.71875rem; color: var(--t3); font-weight: 500; }

/* ── Timeline ── */
.timeline { display: flex; flex-direction: column; gap: 0.5rem; }
.tl-item {
  display: flex; gap: 0.75rem; align-items: stretch;
  padding: 0.875rem 1rem;
  background: var(--s1); border: 1px solid var(--b1); border-radius: var(--rsm);
  transition: border-color var(--tr), transform var(--tr); cursor: default;
}
.tl-item:hover          { border-color: var(--b2); transform: translateX(0.125rem); }
.tl-item.current        { border-color: var(--ac); background: rgba(99,102,241,.06); box-shadow: 0 0 0 1px rgba(99,102,241,.15); }
.tl-item.past           { opacity: .4; }
.tl-item.free           { border-style: dashed; background: transparent; opacity: .45; }
.tl-bar                 { width: 3px; border-radius: 99px; flex-shrink: 0; }
.tl-time {
  font-size: 0.71875rem; color: var(--t3); width: 3.125rem; flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  display: flex; flex-direction: column; justify-content: space-between;
}
.tl-body    { flex: 1; min-width: 0; }
.tl-subj    { font-size: 0.875rem; font-weight: 600; margin-bottom: 0.125rem; }
.tl-meta    { font-size: 0.75rem; color: var(--t3); display: flex; gap: 0.625rem; flex-wrap: wrap; }
.tl-badge   { margin-left: auto; flex-shrink: 0; align-self: flex-start; padding: 0.1875rem 0.5rem; border-radius: 99px; font-size: 0.6875rem; font-weight: 600; }
.tl-badge.now  { background: rgba(99,102,241,.2); color: var(--ac); }
.tl-badge.next { background: rgba(234,179,8,.15);  color: var(--yellow); }

/* ── Upcoming deadlines panel ── */
.deadlines-panel { display: flex; flex-direction: column; gap: 0.625rem; }
.dl-card {
  background: var(--s1); border: 1px solid var(--b1); border-radius: var(--rsm);
  padding: 0.875rem 1rem; display: flex; gap: 0.75rem; align-items: stretch;
  transition: border-color var(--tr);
}
.dl-card:hover    { border-color: var(--b2); }
.dl-datebox {
  width: 2.5rem; flex-shrink: 0; text-align: center; align-self: flex-start;
  background: var(--s2); border-radius: var(--rxs); padding: 0.3125rem 0.1875rem;
}
.dl-datebox .mo   { font-size: 0.625rem; font-weight: 600; color: var(--t3); text-transform: uppercase; }
.dl-datebox .dy   { font-size: 1.1875rem; font-weight: 700; line-height: 1.1; letter-spacing: -.5px; }
.dl-info          { flex: 1; min-width: 0; }
.dl-title         { font-size: 0.8125rem; font-weight: 600; margin-bottom: 0.125rem; }
.dl-sub           { font-size: 0.71875rem; color: var(--t3); }
.dl-away          { font-size: 0.6875rem; font-weight: 700; margin-top: 0.1875rem; }
.dl-chip          { font-size: 0.6875rem; font-weight: 600; padding: 0.125rem 0.4375rem; border-radius: 99px; white-space: nowrap; flex-shrink: 0; align-self: flex-start; }

.chip-test         { background: rgba(239,68,68,.15);  color: var(--red);    }
.chip-homework     { background: rgba(249,115,22,.15); color: var(--orange); }
.chip-project      { background: rgba(99,102,241,.15); color: var(--ac);     }
.chip-quiz         { background: rgba(234,179,8,.15);  color: var(--yellow); }
.chip-event        { background: rgba(34,197,94,.15);  color: var(--green);  }
.chip-presentation { background: rgba(168,85,247,.15); color: var(--purple); }

/* ════ CLASSES VIEW ════════════════════════════════════════ */
.classes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(16.25rem,1fr)); gap: 0.875rem; }
.class-card {
  background: var(--s1); border: 1px solid var(--b1);
  border-radius: var(--r); padding: 1.125rem;
  position: relative; overflow: hidden;
  transition: border-color var(--tr), transform var(--tr), box-shadow var(--tr);
}
.class-card:hover { border-color: var(--b2); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.3); }
.cc-bar   { position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.cc-icon  { width: 2.5rem; height: 2.5rem; border-radius: 0.625rem; display: flex; align-items: center; justify-content: center; margin-bottom: 0.75rem; font-size: 1.1875rem; }
.cc-subj  { font-size: 1rem; font-weight: 700; letter-spacing: -.2px; margin-bottom: 0.25rem; }
.cc-teach { font-size: 0.8125rem; color: var(--t2); margin-bottom: 0.625rem; display: flex; align-items: center; gap: 0.3125rem; }
.cc-teach svg  { width: 0.8125rem; height: 0.8125rem; color: var(--t3); }
.cc-pills      { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.info-pill {
  display: flex; align-items: center; gap: 0.25rem;
  padding: 0.25rem 0.5625rem; border-radius: 99px;
  background: var(--s2); border: 1px solid var(--b1);
  font-size: 0.75rem; color: var(--t2);
}
.info-pill svg { width: 0.6875rem; height: 0.6875rem; color: var(--t3); }

/* ════ TEACHERS VIEW ════════════════════════════════════════ */
.teachers-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17.5rem,1fr)); gap: 0.875rem; }
.teacher-card {
  background: var(--s1); border: 1px solid var(--b1);
  border-radius: var(--r); padding: 1.25rem;
  transition: border-color var(--tr), transform var(--tr), box-shadow var(--tr);
}
.teacher-card:hover { border-color: var(--b2); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.3); }
.tc-header     { display: flex; align-items: center; gap: 0.875rem; margin-bottom: 0.875rem; }
.tc-avatar     {
  width: 3rem; height: 3rem; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700; color: white;
}
.tc-name       { font-size: 0.9375rem; font-weight: 700; letter-spacing: -.2px; }
.tc-title      { font-size: 0.78125rem; color: var(--t3); margin-top: 1px; }
.tc-contact    { display: flex; flex-direction: column; gap: 0.4375rem; margin-bottom: 0.875rem; }
.tc-contact-row { display: flex; align-items: center; gap: 0.5rem; font-size: 0.78125rem; color: var(--t2); }
.tc-contact-row svg     { width: 0.8125rem; height: 0.8125rem; color: var(--t3); flex-shrink: 0; }
.tc-contact-row a       { color: var(--t2); transition: color var(--tr); }
.tc-contact-row a:hover { color: var(--ac); }
.tc-subjects    { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.tc-subj-pill {
  display: flex; align-items: center; gap: 0.3125rem;
  padding: 0.25rem 0.625rem; border-radius: 99px;
  font-size: 0.75rem; font-weight: 600;
}
.tc-subj-dot { width: 0.4375rem; height: 0.4375rem; border-radius: 50%; }

/* ── Responsive ── */
@media (max-width: 860px) { .today-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
  .today-stats  { grid-template-columns: repeat(3,1fr); }
  .greeting-row { flex-direction: column; gap: 1.25rem; }
  .day-picker   { width: 100%; justify-content: space-between; }
  .dp-days      { flex: 1; justify-content: space-evenly; }
}
@media (max-width: 380px) {
  .today-stats         { grid-template-columns: 1fr 1fr; }
  .dp-days .dp-day     { padding: 0.3125rem 0.4375rem; font-size: 0.75rem; }
}