/* =========================================================
   StudiOverview · Stundenplan TU Freiberg
   Tokens
   ========================================================= */

:root {
    color-scheme: light;
    --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "Cascadia Code", Consolas, "Liberation Mono", monospace;

    --bg: #f3f5fa;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --surface-3: #eef2f7;
    --surface-glass: rgba(255, 255, 255, 0.84);

    --text: #0f172a;
    --text-soft: #334155;
    --text-muted: #64748b;
    --text-faint: #94a3b8;

    --border: #e2e8f0;
    --border-strong: #cbd5e1;

    --accent: #1d4ed8;
    --accent-hover: #1e40af;
    --accent-soft: #e0e7ff;
    --accent-softer: #eef2ff;
    --accent-text: #1e40af;
    --on-accent: #ffffff;

    --success: #047857;
    --success-soft: #d1fae5;
    --warning: #b45309;
    --warning-soft: #fef3c7;
    --danger: #b91c1c;
    --danger-soft: #fee2e2;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 10px 28px -16px rgba(15, 23, 42, 0.22);
    --shadow-lg: 0 32px 70px -30px rgba(15, 23, 42, 0.35);
    --ring: 0 0 0 3px rgba(29, 78, 216, 0.25);

    --radius: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --topbar-h: 68px;

    --type-v: #2563eb;
    --type-v-bg: #dbeafe;
    --type-ue: #059669;
    --type-ue-bg: #d1fae5;
    --type-t: #d97706;
    --type-t-bg: #fef3c7;
    --type-p: #7c3aed;
    --type-p-bg: #ede9fe;
    --type-s: #db2777;
    --type-s-bg: #fce7f3;
    --type-k: #475569;
    --type-k-bg: #e2e8f0;
    --type-b: #ea580c;
    --type-b-bg: #ffedd5;
    --type-e: #0d9488;
    --type-e-bg: #ccfbf1;
    --type-x: #64748b;
    --type-x-bg: #f1f5f9;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #070c16;
    --surface: #0d1526;
    --surface-2: #111b2e;
    --surface-3: #18243b;
    --surface-glass: rgba(9, 15, 27, 0.84);

    --text: #e8eefb;
    --text-soft: #c3cee4;
    --text-muted: #8ea0bf;
    --text-faint: #63759a;

    --border: #1e2b44;
    --border-strong: #2d3d5c;

    --accent: #4f8cff;
    --accent-hover: #6ba0ff;
    --accent-soft: rgba(79, 140, 255, 0.16);
    --accent-softer: rgba(79, 140, 255, 0.09);
    --accent-text: #9dc0ff;
    --on-accent: #061027;

    --success: #4ade9d;
    --success-soft: rgba(52, 211, 153, 0.14);
    --warning: #fbbf24;
    --warning-soft: rgba(251, 191, 36, 0.13);
    --danger: #fb7185;
    --danger-soft: rgba(251, 113, 133, 0.13);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 12px 30px -16px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 36px 80px -30px rgba(0, 0, 0, 0.75);
    --ring: 0 0 0 3px rgba(79, 140, 255, 0.32);

    --type-v: #7aaeff;
    --type-v-bg: rgba(96, 165, 250, 0.15);
    --type-ue: #4ade9d;
    --type-ue-bg: rgba(52, 211, 153, 0.14);
    --type-t: #fbbf24;
    --type-t-bg: rgba(251, 191, 36, 0.14);
    --type-p: #b794ff;
    --type-p-bg: rgba(167, 139, 250, 0.15);
    --type-s: #f472b6;
    --type-s-bg: rgba(244, 114, 182, 0.14);
    --type-k: #a9b8d4;
    --type-k-bg: rgba(148, 163, 184, 0.15);
    --type-b: #fb923c;
    --type-b-bg: rgba(251, 146, 60, 0.14);
    --type-e: #2dd4bf;
    --type-e-bg: rgba(45, 212, 191, 0.14);
    --type-x: #9fb0cc;
    --type-x-bg: rgba(148, 163, 184, 0.12);
}

/* =========================================================
   Base
   ========================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100dvh;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--text);
    background:
        radial-gradient(1000px 520px at 8% -12%, rgba(37, 99, 235, 0.13), transparent 62%),
        radial-gradient(900px 500px at 100% 0%, rgba(14, 165, 233, 0.09), transparent 58%),
        var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

:root[data-theme="dark"] body {
    background:
        radial-gradient(1000px 560px at 8% -12%, rgba(59, 130, 246, 0.2), transparent 62%),
        radial-gradient(900px 520px at 100% 0%, rgba(14, 165, 233, 0.1), transparent 58%),
        var(--bg);
}

h1, h2, h3, h4, p, dl, dd {
    margin: 0;
}

button,
input,
select {
    font: inherit;
    color: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: var(--accent-text);
    text-underline-offset: 2px;
}

a:hover {
    color: var(--accent-hover);
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.skip-link {
    position: fixed;
    top: -100px;
    left: 16px;
    z-index: 200;
    padding: 10px 16px;
    border-radius: 10px;
    background: var(--accent);
    color: var(--on-accent);
    font-weight: 650;
    text-decoration: none;
    transition: top 0.15s ease;
}

.skip-link:focus {
    top: 12px;
}

.icon {
    width: 18px;
    height: 18px;
    flex: none;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

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

/* =========================================================
   Layout
   ========================================================= */

.page {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

.main {
    flex: 1;
    width: min(1480px, calc(100% - 48px));
    margin: 0 auto;
    padding: 30px 0 72px;
}

/* =========================================================
   Topbar
   ========================================================= */

.topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--surface-glass);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(18px) saturate(1.5);
    -webkit-backdrop-filter: blur(18px) saturate(1.5);
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    width: min(1480px, calc(100% - 48px));
    height: var(--topbar-h);
    margin: 0 auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    min-width: 0;
    color: var(--text);
    text-decoration: none;
}

.brand:hover {
    color: var(--text);
}

.brand__mark {
    width: 40px;
    height: 40px;
    flex: none;
    color: var(--accent);
}

.brand__text {
    display: flex;
    flex-direction: column;
    min-width: 0;
    line-height: 1.15;
}

.brand__title {
    font-size: 1.02rem;
    font-weight: 780;
    letter-spacing: -0.02em;
}

.brand__sub {
    margin-top: 3px;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.01em;
}

.topbar__actions {
    display: flex;
    align-items: center;
    gap: 9px;
}

.conn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 650;
    white-space: nowrap;
}

.conn__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 3px var(--success-soft);
}

.conn[data-state="offline"] .conn__dot {
    background: var(--warning);
    box-shadow: 0 0 0 3px var(--warning-soft);
}

.conn[data-state="offline"] {
    color: var(--warning);
}

/* =========================================================
   Buttons & fields
   ========================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    padding: 0 15px;
    border: 1px solid transparent;
    border-radius: 11px;
    background: transparent;
    color: var(--text-soft);
    font-size: 0.84rem;
    font-weight: 650;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.12s ease, box-shadow 0.15s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
    box-shadow: 0 8px 20px -12px rgba(29, 78, 216, 0.75);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-ghost {
    background: var(--surface-2);
    border-color: var(--border);
    color: var(--text-soft);
}

.btn-ghost:hover {
    background: var(--surface-3);
    border-color: var(--border-strong);
}

.btn-sm {
    height: 32px;
    padding: 0 11px;
    font-size: 0.76rem;
    border-radius: 9px;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex: none;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--surface-2);
    color: var(--text-soft);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.12s ease;
}

.icon-btn:hover {
    background: var(--surface-3);
    border-color: var(--border-strong);
    color: var(--text);
}

.icon-btn:active {
    transform: scale(0.96);
}

.icon-btn--ghost {
    width: 34px;
    height: 34px;
    border-color: transparent;
    background: transparent;
    border-radius: 9px;
}

.icon-btn--ghost:hover {
    background: var(--surface-3);
    border-color: transparent;
}

.icon-btn:disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: default;
    transform: none;
}

.icon-sun,
.icon-moon {
    width: 19px;
    height: 19px;
}

:root[data-theme="dark"] .icon-sun {
    display: none;
}

:root[data-theme="dark"] .icon-moon {
    display: block;
}

:root[data-theme="light"] .icon-moon {
    display: none;
}

/* =========================================================
   Picker / controls
   ========================================================= */

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

.picker {
    padding: 24px;
}

.picker__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
}

.eyebrow {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--accent-text);
}

.picker__title {
    margin-top: 6px;
    font-size: clamp(1.35rem, 2.3vw, 1.8rem);
    font-weight: 780;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.picker__hint {
    margin-top: 7px;
    color: var(--text-muted);
    font-size: 0.86rem;
}

.freshness {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: none;
    min-height: 32px;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 550;
    white-space: nowrap;
}

.freshness__dot {
    width: 7px;
    height: 7px;
    flex: none;
    border-radius: 50%;
    background: var(--text-faint);
}

.freshness[data-state="loading"] .freshness__dot {
    background: var(--accent);
    animation: pulse 1.2s ease-in-out infinite;
}

.freshness[data-state="fresh"] .freshness__dot {
    background: var(--success);
    box-shadow: 0 0 0 3px var(--success-soft);
}

.freshness[data-state="cached"] .freshness__dot {
    background: var(--warning);
    box-shadow: 0 0 0 3px var(--warning-soft);
}

.freshness[data-state="error"] .freshness__dot {
    background: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-soft);
}

.picker__fields {
    display: grid;
    grid-template-columns: minmax(190px, 0.9fr) minmax(300px, 1.8fr) auto;
    align-items: end;
    gap: 16px;
    margin-top: 22px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 7px;
    min-width: 0;
}

.field__label {
    font-size: 0.71rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.field--fach {
    min-width: 190px;
}

.select {
    position: relative;
    display: block;
}

.select select {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    height: 46px;
    padding: 0 42px 0 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface-2);
    color: var(--text);
    font-size: 0.91rem;
    font-weight: 500;
    text-overflow: ellipsis;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.select select:hover {
    border-color: var(--border-strong);
}

.select select:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--ring);
}

.select select:disabled {
    opacity: 0.55;
    cursor: wait;
}

.select select option {
    background: var(--surface);
    color: var(--text);
}

.select__chevron {
    position: absolute;
    top: 50%;
    right: 14px;
    width: 18px;
    height: 18px;
    transform: translateY(-50%);
    fill: none;
    stroke: var(--text-muted);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    pointer-events: none;
}

.segmented {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.segmented button {
    height: 40px;
    padding: 0 13px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface-2);
    color: var(--text-soft);
    font-size: 0.82rem;
    font-weight: 650;
    white-space: nowrap;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.12s ease;
}

.segmented button:hover {
    border-color: var(--border-strong);
    background: var(--surface-3);
}

.segmented button[aria-pressed="true"] {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
}

.segmented button:active {
    transform: translateY(1px);
}

.segmented button:disabled {
    opacity: 0.5;
    cursor: default;
}

/* =========================================================
   Notice
   ========================================================= */

.notice {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    margin-top: 18px;
    padding: 13px 14px;
    border: 1px solid transparent;
    border-radius: 14px;
    background: var(--warning-soft);
    color: var(--warning);
    font-size: 0.83rem;
    line-height: 1.55;
}

.notice[data-kind="error"] {
    background: var(--danger-soft);
    color: var(--danger);
}

.notice[data-kind="info"] {
    background: var(--accent-soft);
    color: var(--accent-text);
}

.notice__icon {
    display: inline-flex;
    margin-top: 1px;
}

.notice__content {
    flex: 1;
    min-width: 0;
}

.notice__content p + p {
    margin-top: 4px;
}

.notice__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    margin: -2px -4px -2px 0;
    padding: 0;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: currentColor;
    opacity: 0.65;
    cursor: pointer;
}

.notice__close:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.06);
}

.notice__close .icon {
    width: 15px;
    height: 15px;
}

.notice .btn {
    margin-top: 8px;
}

:root[data-theme="dark"] .notice__close:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* =========================================================
   Plan header
   ========================================================= */

.plan {
    margin-top: 30px;
}

.plan__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 26px;
    padding: 2px 4px 18px;
}

.plan__heading {
    min-width: 0;
}

.plan__title {
    margin-top: 4px;
    font-size: clamp(1.45rem, 2.6vw, 2.05rem);
    font-weight: 780;
    letter-spacing: -0.035em;
    line-height: 1.12;
    overflow-wrap: anywhere;
}

.plan__meta {
    margin-top: 7px;
    color: var(--text-muted);
    font-size: 0.83rem;
    line-height: 1.5;
}

.plan__meta strong {
    color: var(--text-soft);
    font-weight: 650;
}

.weekbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.weekbar__nav {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.weekbar__current {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 152px;
    padding: 0 6px;
    line-height: 1.25;
}

.weekbar__kw {
    font-size: 0.85rem;
    font-weight: 750;
    letter-spacing: -0.01em;
}

.weekbar__dates {
    font-size: 0.71rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.weekbar__tools {
    display: flex;
    align-items: center;
    gap: 9px;
}

.parity {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 9px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 0.71rem;
    font-weight: 650;
    white-space: nowrap;
}

.parity[data-parity="even"] {
    background: var(--success-soft);
    border-color: transparent;
    color: var(--success);
}

.parity[data-parity="odd"] {
    background: var(--warning-soft);
    border-color: transparent;
    color: var(--warning);
}

.check {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--text-muted);
    font-size: 0.74rem;
    font-weight: 550;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

.check input {
    width: 15px;
    height: 15px;
    margin: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.progress {
    height: 3px;
    margin: 0 4px 16px;
    border-radius: 999px;
    overflow: hidden;
    background: var(--surface-3);
}

.progress span {
    display: block;
    width: 34%;
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
    animation: progress 1.25s ease-in-out infinite;
}

/* =========================================================
   Board
   ========================================================= */

.board {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: start;
    gap: 14px;
}

.board[data-days="6"] {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.board[data-days="7"] {
    grid-template-columns: repeat(7, minmax(0, 1fr));
}

.week-empty {
    margin: 0 0 12px;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 0.82rem;
}

.board__day {
    min-width: 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.board__day.is-today {
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow: 0 0 0 3px var(--accent-softer), var(--shadow-sm);
}

.day__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
    padding: 2px 4px 11px;
    border-bottom: 1px solid var(--border);
}

.day__name {
    font-size: 0.89rem;
    font-weight: 750;
    letter-spacing: -0.01em;
}

.board__day.is-today .day__name {
    color: var(--accent-text);
}

.day__today {
    display: inline-block;
    margin-left: 5px;
    padding: 1px 5px;
    border-radius: 5px;
    background: var(--accent-soft);
    color: var(--accent-text);
    font-size: 0.6rem;
    font-weight: 750;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    vertical-align: 1px;
}

.day__date {
    font-size: 0.71rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.day__events {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.day__empty {
    padding: 18px 8px;
    border: 1px dashed var(--border);
    border-radius: 11px;
    color: var(--text-faint);
    font-size: 0.73rem;
    text-align: center;
}

/* =========================================================
   Event cards
   ========================================================= */

.event {
    --type-color: var(--type-x);
    --type-bg: var(--type-x-bg);
    position: relative;
    padding: 10px 11px 10px 13px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--type-color);
    border-radius: 11px;
    background: var(--surface-2);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

.event:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
    border-left-color: var(--type-color);
    box-shadow: var(--shadow-md);
}

.event:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.event.is-inactive {
    opacity: 0.44;
}

.event.is-inactive:hover {
    opacity: 0.72;
}

.event__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.event__time {
    color: var(--text-soft);
    font-size: 0.72rem;
    font-weight: 750;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 23px;
    height: 21px;
    padding: 0 6px;
    border-radius: 7px;
    background: var(--type-bg);
    color: var(--type-color);
    font-size: 0.69rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.badge--off {
    background: var(--warning-soft);
    color: var(--warning);
    font-weight: 700;
}

.event__title {
    margin-top: 7px;
    color: var(--text);
    font-size: 0.875rem;
    font-weight: 650;
    line-height: 1.34;
    letter-spacing: -0.005em;
    overflow-wrap: anywhere;
}

.event__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 7px;
}

.chip {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--surface-3);
    color: var(--text-muted);
    font-size: 0.66rem;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.chip--group {
    background: var(--accent-softer);
    color: var(--accent-text);
    font-weight: 650;
}

.chip--room {
    font-family: var(--font-mono);
    font-size: 0.63rem;
    letter-spacing: -0.02em;
}

.chip--even {
    background: var(--success-soft);
    color: var(--success);
    font-weight: 600;
}

.chip--odd {
    background: var(--warning-soft);
    color: var(--warning);
    font-weight: 600;
}

.chip--note {
    background: var(--warning-soft);
    color: var(--warning);
    font-weight: 600;
}

.event__lecturers {
    display: -webkit-box;
    margin-top: 6px;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.68rem;
    line-height: 1.4;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.event__off {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 7px;
    color: var(--warning);
    font-size: 0.66rem;
    font-weight: 700;
}

.event__off::before {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
    content: "";
}

.type-v { --type-color: var(--type-v); --type-bg: var(--type-v-bg); }
.type-ue { --type-color: var(--type-ue); --type-bg: var(--type-ue-bg); }
.type-t { --type-color: var(--type-t); --type-bg: var(--type-t-bg); }
.type-p { --type-color: var(--type-p); --type-bg: var(--type-p-bg); }
.type-s { --type-color: var(--type-s); --type-bg: var(--type-s-bg); }
.type-k { --type-color: var(--type-k); --type-bg: var(--type-k-bg); }
.type-b { --type-color: var(--type-b); --type-bg: var(--type-b-bg); }
.type-e { --type-color: var(--type-e); --type-bg: var(--type-e-bg); }
.type-x { --type-color: var(--type-x); --type-bg: var(--type-x-bg); }

/* =========================================================
   Unscheduled / without weekday
   ========================================================= */

.unscheduled {
    margin-top: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.unscheduled__head {
    display: flex;
    align-items: baseline;
    gap: 9px;
    margin-bottom: 12px;
}

.unscheduled__head h3 {
    font-size: 0.9rem;
    font-weight: 750;
}

.unscheduled__head span {
    color: var(--text-muted);
    font-size: 0.73rem;
}

.unscheduled__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
    gap: 9px;
}

/* =========================================================
   Empty / loading / error states
   ========================================================= */

.empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 56px 24px;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    text-align: center;
}

.empty__art {
    width: 108px;
    height: 108px;
    color: var(--accent);
    opacity: 0.95;
}

.empty h3 {
    margin-top: 16px;
    font-size: 1.22rem;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.empty p {
    max-width: 470px;
    margin-top: 8px;
    color: var(--text-muted);
    font-size: 0.87rem;
    line-height: 1.6;
}

.empty .btn {
    margin-top: 20px;
}

.empty--error .empty__art {
    color: var(--danger);
}

.empty--compact {
    padding: 34px 20px;
}

.loading-wrap {
    padding: 4px 0 0;
}

.loading-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 6px 0 18px;
    color: var(--text-muted);
    font-size: 0.82rem;
    text-align: center;
}

.spinner {
    width: 15px;
    height: 15px;
    flex: none;
    border: 2px solid var(--border-strong);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

.skeleton-card {
    height: 108px;
    border-radius: 11px;
    background: linear-gradient(100deg, var(--surface-3) 28%, var(--surface-2) 48%, var(--surface-3) 68%);
    background-size: 220% 100%;
    animation: shimmer 1.4s ease-in-out infinite;
}

.skeleton-card:nth-child(2) {
    height: 92px;
    animation-delay: 0.12s;
}

.skeleton-card:nth-child(3) {
    height: 124px;
    animation-delay: 0.24s;
}

.skeleton-line {
    display: block;
    height: 10px;
    border-radius: 5px;
    background: var(--surface-3);
}

.skeleton-line--wide {
    width: 52%;
}

.skeleton-line--narrow {
    width: 22%;
}

/* =========================================================
   Footer
   ========================================================= */

.footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 24px;
    width: min(1480px, calc(100% - 48px));
    margin: 0 auto;
    padding: 20px 0 34px;
    border-top: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 0.72rem;
    line-height: 1.55;
}

.footer p {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* =========================================================
   Dialogs
   ========================================================= */

.dialog {
    width: min(690px, calc(100% - 28px));
    max-height: min(86vh, 820px);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.dialog--event {
    width: min(620px, calc(100% - 28px));
}

.dialog::backdrop {
    background: rgba(2, 6, 23, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.dialog[open] {
    animation: dialog-in 0.18s ease-out;
}

.dialog__body {
    max-height: calc(86vh - 86px);
    padding: 24px 24px 10px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 14px 24px 18px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.dialog h2 {
    font-size: 1.24rem;
    font-weight: 780;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.dialog__lead {
    margin-top: 7px;
    color: var(--text-muted);
    font-size: 0.86rem;
    line-height: 1.55;
}

.dialog h3 {
    font-size: 0.72rem;
    font-weight: 750;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.diff-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 16px;
}

.diff-pill {
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.73rem;
    font-weight: 700;
}

.diff-pill--new {
    background: var(--success-soft);
    color: var(--success);
}

.diff-pill--removed {
    background: var(--danger-soft);
    color: var(--danger);
}

.diff-pill--changed {
    background: var(--warning-soft);
    color: var(--warning);
}

.diff-section {
    margin-top: 20px;
}

.diff-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
}

.diff-item {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface-2);
    font-size: 0.82rem;
    line-height: 1.45;
}

.diff-item strong {
    display: block;
    font-weight: 650;
    overflow-wrap: anywhere;
}

.diff-item span {
    display: block;
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.74rem;
    overflow-wrap: anywhere;
}

.diff-more {
    margin-top: 7px;
    color: var(--text-muted);
    font-size: 0.74rem;
}

/* Event detail */

.event-detail__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.event-detail__type {
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 550;
}

.event-detail__title {
    margin-top: 10px;
    font-size: 1.32rem;
    font-weight: 780;
    letter-spacing: -0.025em;
    line-height: 1.22;
    overflow-wrap: anywhere;
}

.event-detail__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 10px;
}

.detail-list {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 11px 16px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    font-size: 0.86rem;
    line-height: 1.5;
}

.detail-list dt {
    color: var(--text-muted);
    font-size: 0.76rem;
    font-weight: 600;
}

.detail-list dd {
    overflow-wrap: anywhere;
}

.detail-list .inactive-note {
    color: var(--warning);
    font-weight: 650;
}

.raw-title {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.78rem;
}

.raw-title summary {
    color: var(--text-soft);
    font-weight: 600;
    cursor: pointer;
}

.raw-title p {
    margin-top: 7px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

/* =========================================================
   Toasts
   ========================================================= */

.toasts {
    position: fixed;
    bottom: calc(22px + env(safe-area-inset-bottom));
    left: 50%;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: min(440px, calc(100% - 28px));
    transform: translateX(-50%);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    color: var(--text);
    font-size: 0.82rem;
    line-height: 1.45;
    pointer-events: auto;
    animation: toast-in 0.2s ease-out;
}

.toast[data-kind="error"] {
    border-color: rgba(185, 28, 28, 0.35);
}

.toast[data-kind="success"] {
    border-color: rgba(4, 120, 87, 0.3);
}

.toast.is-leaving {
    animation: toast-out 0.18s ease-in forwards;
}

.toast__icon {
    flex: none;
    margin-top: 1px;
}

.toast__text {
    flex: 1;
    min-width: 0;
}

.toast__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    margin: -2px -4px -2px 0;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
}

.toast__close:hover {
    background: var(--surface-3);
    color: var(--text);
}

.toast__close .icon {
    width: 13px;
    height: 13px;
}

/* =========================================================
   Animations
   ========================================================= */

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.45; transform: scale(0.85); }
}

@keyframes shimmer {
    0% { background-position: 120% 0; }
    100% { background-position: -120% 0; }
}

@keyframes progress {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(420%); }
}

@keyframes dialog-in {
    from { opacity: 0; transform: translateY(8px) scale(0.985); }
    to { opacity: 1; transform: none; }
}

@keyframes toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
}

@keyframes toast-out {
    to { opacity: 0; transform: translateY(6px); }
}

.icon-refresh.is-spinning {
    animation: spin 0.9s linear infinite;
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 1240px) {
    .picker__fields {
        grid-template-columns: minmax(180px, 0.9fr) minmax(260px, 1.6fr);
    }

    .field--fach {
        grid-column: 1 / -1;
    }
}

@media (max-width: 1080px) {
    .board,
    .board[data-days] {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .plan__header {
        align-items: flex-start;
        flex-direction: column;
        gap: 16px;
    }

    .weekbar {
        justify-content: flex-start;
    }
}

@media (max-width: 760px) {
    :root {
        --topbar-h: 60px;
    }

    .main,
    .topbar__inner,
    .footer {
        width: calc(100% - 24px);
    }

    .main {
        padding: 16px 0 48px;
    }

    .topbar__inner {
        gap: 10px;
    }

    .brand {
        gap: 8px;
    }

    .brand__mark {
        width: 34px;
        height: 34px;
    }

    .brand__title {
        font-size: 0.95rem;
    }

    .brand__sub {
        display: none;
    }

    .topbar__actions {
        gap: 6px;
    }

    .conn {
        padding: 0 7px;
        border-color: transparent;
        background: transparent;
    }

    .conn__text {
        display: none;
    }

    .btn__label {
        display: none;
    }

    .btn-primary {
        width: 40px;
        padding: 0;
    }

    .picker {
        padding: 18px;
    }

    .picker__top {
        flex-direction: column;
        gap: 12px;
    }

    .picker__title {
        font-size: 1.32rem;
    }

    .picker__fields {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-top: 18px;
    }

    .field--fach {
        grid-column: auto;
    }

    .freshness {
        align-self: flex-start;
    }

    .plan {
        margin-top: 22px;
    }

    .plan__header {
        padding-bottom: 14px;
    }

    .plan__title {
        font-size: 1.42rem;
    }

    .weekbar {
        width: 100%;
        justify-content: space-between;
    }

    .weekbar__nav {
        flex: 1;
        justify-content: space-between;
    }

    .weekbar__current {
        min-width: 0;
        flex: 1;
    }

    .weekbar__tools {
        width: 100%;
        justify-content: space-between;
    }

    .board,
    .board[data-days] {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .board__day {
        padding: 11px;
    }

    .day__events {
        gap: 8px;
    }

    .event {
        padding: 11px 12px 11px 14px;
    }

    .event__title {
        font-size: 0.91rem;
    }

    .unscheduled {
        padding: 14px;
    }

    .unscheduled__grid {
        grid-template-columns: 1fr;
    }

    .empty {
        padding: 42px 18px;
    }

    .empty__art {
        width: 92px;
        height: 92px;
    }

    .footer {
        flex-direction: column;
        padding-bottom: 26px;
    }

    .dialog {
        width: calc(100% - 16px);
        max-height: 90vh;
        border-radius: 16px;
    }

    .dialog__body {
        padding: 20px 18px 8px;
        max-height: calc(90vh - 80px);
    }

    .dialog__actions {
        padding: 12px 18px 16px;
    }

    .detail-list {
        grid-template-columns: 1fr;
        gap: 3px;
    }

    .detail-list dt {
        margin-top: 9px;
    }

    .detail-list dt:first-child {
        margin-top: 0;
    }
}

@media (max-width: 390px) {
    .brand__title {
        font-size: 0.88rem;
    }

    .brand__mark {
        width: 30px;
        height: 30px;
    }

    .icon-btn {
        width: 37px;
        height: 37px;
    }

    .btn-primary {
        width: 37px;
        height: 37px;
    }
}

/* =========================================================
   Motion / print
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}

@media print {
    :root {
        --bg: #fff;
        --surface: #fff;
        --surface-2: #fff;
        --surface-3: #f3f4f6;
        --text: #000;
        --text-soft: #111;
        --text-muted: #444;
        --border: #ddd;
    }

    body {
        background: #fff;
    }

    .topbar,
    .picker,
    .footer,
    .weekbar,
    .notice,
    .progress,
    .toasts,
    .dialog {
        display: none !important;
    }

    .main {
        width: 100%;
        padding: 0;
    }

    .plan {
        margin: 0;
    }

    .board,
    .board[data-days] {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 6px;
    }

    .board__day {
        box-shadow: none;
        break-inside: avoid;
    }

    .event {
        break-inside: avoid;
        box-shadow: none;
    }

    .event.is-inactive {
        opacity: 0.5;
    }
}