:root,
[data-theme="dark"] {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1e222b;
  --border: #2a2f3a;
  --text: #eef0f4;
  --text-dim: #9199a8;
  --accent: #6ee7b7;
  --accent-2: #7c9eff;
  --accent-3: #ffb86e;
  --on-accent: #0f1115;
  --bg-gradient: radial-gradient(circle at 20% 0%, #1a2233 0%, var(--bg) 55%);
  --radius: 16px;
}

[data-theme="colorful"] {
  --colorful-bg: #1a1130;
  --colorful-bg-glow: #3d2470;
  --bg: var(--colorful-bg);
  --surface: #271a49;
  --surface-2: #32215c;
  --border: #4a3480;
  --text: #f6f1ff;
  --text-dim: #c2aee8;
  --accent: #ff6ec7;
  --accent-2: #7c9eff;
  --accent-3: #ffd166;
  --on-accent: #1a1130;
  --bg-gradient: radial-gradient(circle at 20% 0%, var(--colorful-bg-glow) 0%, var(--colorful-bg) 60%);
}

[data-theme="colorful"] [data-subject-color="rose"] {
  --subject-accent: #ff8bc6;
  --subject-background: #54203f;
}

[data-theme="colorful"] [data-subject-color="orange"] {
  --subject-accent: #ffad66;
  --subject-background: #51301f;
}

[data-theme="colorful"] [data-subject-color="sky"] {
  --subject-accent: #71c8ff;
  --subject-background: #183c58;
}

[data-theme="colorful"] [data-subject-color="violet"] {
  --subject-accent: #b69cff;
  --subject-background: #38245f;
}

[data-theme="colorful"] [data-subject-color="emerald"] {
  --subject-accent: #5ee6bd;
  --subject-background: #143f38;
}

[data-theme="colorful"] [data-subject-color="amber"] {
  --subject-accent: #ffd166;
  --subject-background: #4b3a15;
}

[data-theme="colorful"] [data-subject-color="teal"] {
  --subject-accent: #5de2df;
  --subject-background: #153f43;
}

[data-theme="colorful"] [data-subject-color="indigo"] {
  --subject-accent: #91a7ff;
  --subject-background: #242f62;
}

[data-theme="colorful"] [data-subject-color="magenta"] {
  --subject-accent: #f58cff;
  --subject-background: #501e54;
}

[data-theme="colorful"] [data-subject-color="coral"] {
  --subject-accent: #ff8b83;
  --subject-background: #542b2f;
}

[data-theme="colorful"] [data-subject-color="cyan"] {
  --subject-accent: #67ddff;
  --subject-background: #153c52;
}

[data-theme="colorful"] [data-subject-color="lavender"] {
  --subject-accent: #c8b6ff;
  --subject-background: #383157;
}

[data-theme="colorful"] [data-subject-color="fuchsia"] {
  --subject-accent: #eb8cff;
  --subject-background: #492254;
}

[data-theme="colorful"] [data-subject-color="blue"] {
  --subject-accent: #79a9ff;
  --subject-background: #1d3761;
}

[data-theme="colorful"] [data-subject-color="lime"] {
  --subject-accent: #b8e86d;
  --subject-background: #34431b;
}

[data-theme="colorful"] [data-subject-color="green"] {
  --subject-accent: #70df8c;
  --subject-background: #174529;
}

[data-theme="colorful"] [data-subject-color="red"] {
  --subject-accent: #ff7c86;
  --subject-background: #502328;
}

[data-theme="colorful"] [data-subject-color="mint"] {
  --subject-accent: #6ee7c8;
  --subject-background: #17483f;
}

[data-theme="light"] {
  --bg: #f4f5f9;
  --surface: #ffffff;
  --surface-2: #eef0f6;
  --border: #dde1ea;
  --text: #1b1e27;
  --text-dim: #6a7180;
  --accent: #12b981;
  --accent-2: #4c6fe0;
  --accent-3: #e08a1e;
  --on-accent: #ffffff;
  --bg-gradient: radial-gradient(circle at 20% 0%, #e6ebfb 0%, var(--bg) 55%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  background: var(--bg-gradient);
  transition: background 0.3s ease, color 0.3s ease;
}

button,
input {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 16px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.view-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}

.toggle-btn {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.toggle-btn.active {
  background: var(--accent);
  color: var(--on-accent);
}

.settings-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 12px;
}

.subject-display-toggle,
.background-control {
  display: flex;
  align-items: center;
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.subject-display-toggle {
  gap: 7px;
  padding: 4px 10px;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.subject-display-toggle:hover,
.subject-display-toggle.active {
  border-color: var(--accent-2);
  color: var(--text);
}

.subject-display-toggle:focus-visible,
.background-control input[type="color"]:focus-visible,
.theme-btn:focus-visible,
.toggle-btn:focus-visible,
.day-chip:focus-visible,
.nav-arrow:focus-visible,
.editable-value:focus-visible {
  outline: 2px solid var(--accent-3);
  outline-offset: 2px;
}

.switch-track {
  position: relative;
  width: 32px;
  height: 18px;
  flex: 0 0 32px;
  border-radius: 999px;
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--border);
  transition: background 0.2s, box-shadow 0.2s;
}

.switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: transform 0.2s, background 0.2s;
}

.subject-display-toggle.active .switch-track {
  background: var(--accent-2);
  box-shadow: none;
}

.subject-display-toggle.active .switch-thumb {
  background: var(--on-accent);
  transform: translateX(14px);
}

#subject-display-value {
  min-width: 67px;
  text-align: left;
}

.background-control {
  gap: 7px;
  padding: 3px 5px 3px 11px;
}

.background-control[hidden] {
  display: none;
}

.background-control label {
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.background-control input[type="color"] {
  width: 28px;
  height: 28px;
  padding: 2px;
  border: 1px solid var(--accent-2);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.background-control input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.background-control input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 50%;
}

.background-control input[type="color"]::-moz-color-swatch {
  border: 0;
  border-radius: 50%;
}

.theme-toggle {
  display: flex;
  min-width: 0;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}

.theme-btn {
  border: none;
  background: transparent;
  font-size: 0.95rem;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1;
  transition: background 0.2s, transform 0.15s;
}

.theme-btn.active {
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--accent-2);
}

.theme-btn:active {
  transform: scale(0.88);
}

.day-picker {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 12px;
  scrollbar-width: none;
}

.day-picker::-webkit-scrollbar {
  display: none;
}

.day-chip {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.day-chip.active {
  border-color: var(--accent-2);
  color: var(--text);
  background: linear-gradient(135deg, rgba(124, 158, 255, 0.25), rgba(110, 231, 183, 0.15));
}

.day-chip.today {
  position: relative;
}

.day-chip.today::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-3);
  margin-left: 6px;
  vertical-align: middle;
}

.day-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.day-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0;
}

.nav-arrow {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, transform 0.1s;
}

.nav-arrow:active {
  transform: scale(0.92);
}

.nav-arrow:hover {
  border-color: var(--accent-2);
}

.swipe-area {
  touch-action: pan-y;
}

.lessons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lesson-card {
  --i: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  border-left: 4px solid var(--accent-2);
  animation: slideIn 0.4s ease backwards;
  animation-delay: calc(var(--i) * 150ms);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.2s ease;
}

.lesson-card:nth-child(2n) {
  border-left-color: var(--accent);
}

.lesson-card:nth-child(3n) {
  border-left-color: var(--accent-3);
}

.lesson-card.lesson-empty {
  opacity: 0.5;
  border-left-color: var(--border);
}

[data-theme="colorful"] .lesson-card[data-subject-color] {
  background: var(--subject-background);
  border-color: var(--subject-accent);
}

[data-theme="colorful"] [data-subject-color] .lesson-subject,
[data-theme="colorful"] [data-subject-color] .wt-subject {
  color: var(--subject-accent);
}

.lesson-card.lesson-now {
  position: relative;
  box-shadow: 0 0 0 2px var(--accent-3);
}

.lesson-card.lesson-now::after {
  content: "ACUM";
  position: absolute;
  top: -9px;
  right: 14px;
  background: var(--accent-3);
  color: var(--on-accent);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 999px;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.lesson-period {
  flex: 0 0 84px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.period-nr {
  font-weight: 800;
  font-size: 0.9rem;
}

.period-time {
  font-size: 0.72rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.lesson-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  min-width: 0;
}

.lesson-subject,
.lesson-room,
.wt-subject,
.wt-room {
  position: relative;
  max-width: 100%;
}

.lesson-subject {
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.25;
}

.editable-value {
  cursor: pointer;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  border-radius: 4px;
}

.editable-value::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -3px;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.85;
  transform: scaleX(0);
  transform-origin: left;
}

.editable-value.long-pressing::after {
  animation: longPressFill 3s linear forwards;
}

@keyframes longPressFill {
  to {
    transform: scaleX(1);
  }
}

.lesson-free {
  color: var(--text-dim);
  font-style: italic;
  font-weight: 500;
}

.lesson-room {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.week-view {
  min-width: 0;
  width: 100%;
}

.week-scroll {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

.week-table {
  width: 100%;
  min-width: 720px;
  border-collapse: separate;
  border-spacing: 0 8px;
}

.week-table th,
.week-table td {
  text-align: left;
  padding: 10px 12px;
  font-size: 0.85rem;
  vertical-align: top;
}

.week-table thead th {
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  padding-bottom: 4px;
}

.week-table tbody th {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-radius: 12px 0 0 12px;
  white-space: nowrap;
}

.week-table thead th:first-child,
.week-table tbody th {
  position: sticky;
  left: 0;
  width: 92px;
  min-width: 92px;
  max-width: 92px;
  z-index: 2;
  box-shadow: 5px 0 8px -7px rgba(0, 0, 0, 0.8);
}

.week-table thead th:first-child {
  background: var(--surface-2);
  border-radius: 8px;
  z-index: 3;
}

.wt-nr {
  display: block;
  font-weight: 800;
  color: var(--text);
}

.wt-time {
  display: block;
  font-size: 0.68rem;
  color: var(--text-dim);
  font-weight: 400;
}

.week-table tbody td {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

[data-theme="colorful"] .week-table tbody td[data-subject-color] {
  background: var(--subject-background);
  border-color: var(--subject-accent);
  box-shadow: inset 4px 0 var(--subject-accent);
}

.week-table tbody tr {
  --i: 0;
  animation: slideIn 0.4s ease backwards;
  animation-delay: calc(var(--i) * 150ms);
}

.week-table th.wt-today-col,
.week-table td.wt-today-col {
  background: linear-gradient(135deg, rgba(124, 158, 255, 0.12), rgba(110, 231, 183, 0.08));
}

.week-table th.wt-today-col {
  color: var(--accent-2);
}

.week-table td.wt-now {
  outline: 2px solid var(--accent-3);
  outline-offset: -2px;
  border-radius: 8px;
}

.week-table tbody td:last-child {
  border-radius: 0 12px 12px 0;
  border-right: 1px solid var(--border);
}

.wt-subject,
.wt-room {
  width: fit-content;
}

.wt-subject {
  display: block;
  font-weight: 700;
  line-height: 1.3;
}

.wt-room {
  display: block;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 2px;
}

.wt-free {
  color: var(--text-dim);
  font-weight: 400;
  font-style: italic;
}

.wt-empty {
  opacity: 0.5;
}

.value-editor {
  width: min(420px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
}

.value-editor::backdrop {
  background: rgba(5, 7, 12, 0.72);
  backdrop-filter: blur(3px);
}

.value-editor-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
}

.value-editor-title {
  margin: 0;
  font-size: 1.2rem;
}

.value-editor-context {
  margin: -5px 0 3px;
  color: var(--text-dim);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.value-editor-label {
  color: var(--text-dim);
  font-size: 0.78rem;
  font-weight: 700;
}

.value-editor-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
  background: var(--surface-2);
  color: var(--text);
  outline: none;
}

.value-editor-input:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-2) 30%, transparent);
}

.value-editor-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

.value-editor-actions button {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 13px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.value-editor-actions button:hover {
  border-color: var(--accent-2);
}

.value-editor-reset {
  margin-right: auto;
}

.value-editor-actions .value-editor-save {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.foot {
  margin-top: 24px;
  text-align: center;
}

.foot p {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 0;
}

@media (max-width: 480px) {
  .subject-display-label {
    display: none;
  }
}

@media (min-width: 640px) {
  .title {
    font-size: 1.9rem;
  }

  .lesson-card {
    padding: 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lesson-card,
  .week-table tbody tr {
    animation: none;
  }

  .editable-value.long-pressing::after {
    animation: none;
    transform: scaleX(1);
  }
}