:root {
    --bg: #f2f5ff;
    --surface: #ffffff;
    --text: #192236;
    --muted: #6b7280;
    --accent: #3459df;
    --accent-2: #8b5cf6;
    --border: #e5e7eb;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Arial, sans-serif;
    background: radial-gradient(1200px 600px at 5% -10%, #dce8ff 0%, transparent 60%),
        radial-gradient(800px 500px at 100% -20%, #f4e7ff 0%, transparent 60%),
        var(--bg);
    color: var(--text);
    position: relative;
    transition: background 0.78s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.theme-wash {
    display: none;
}

body::before,
body::after {
    display: none;
}

body::before {
    content: "";
    inset: -10%;
    border-radius: 999px;
    background: radial-gradient(900px 500px at 15% 15%, rgba(255, 255, 255, 0.45), transparent 70%),
        radial-gradient(700px 420px at 82% 22%, rgba(180, 198, 255, 0.3), transparent 72%),
        radial-gradient(600px 360px at 30% 85%, rgba(195, 235, 255, 0.22), transparent 72%);
}

body::after {
    content: "";
    inset: 0;
    background-image:
        radial-gradient(circle at 12% 20%, rgba(110, 125, 170, 0.12) 0, rgba(110, 125, 170, 0.12) 2px, transparent 2px),
        radial-gradient(circle at 85% 70%, rgba(110, 125, 170, 0.1) 0, rgba(110, 125, 170, 0.1) 2px, transparent 2px),
        linear-gradient(118deg, rgba(96, 116, 163, 0.05) 0, rgba(96, 116, 163, 0) 42%),
        linear-gradient(302deg, rgba(96, 116, 163, 0.04) 0, rgba(96, 116, 163, 0) 45%);
    background-size: 220px 220px, 260px 260px, 100% 100%, 100% 100%;
}

.theme-notes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.22s ease-out;
}

.theme-notes.is-visible {
    opacity: 1;
}

.theme-note {
    position: absolute;
    color: rgb(52, 68, 108);
    font-size: clamp(16px, 1.45vw, 25px);
    font-weight: 800;
    letter-spacing: 1px;
    user-select: none;
    white-space: nowrap;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.32);
    transition: opacity 0.12s ease, color 0.18s ease;
    opacity: 0;
    animation: note-appear 0.16s ease-out forwards, note-float 4.4s ease-in-out infinite;
    filter: blur(0.05px);
}

@keyframes note-appear {
    from {
        opacity: 0;
    }

    to {
        opacity: var(--note-opacity, 0.26);
    }
}

@keyframes note-float {
    0%,
    100% {
        margin-top: 0;
    }

    50% {
        margin-top: -4px;
    }
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 16px;
    position: relative;
    z-index: 1;
}

.site-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 0.3px;
    text-decoration: none;
    color: var(--text);
}

.brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    font-size: 16px;
    font-weight: 800;
}

.top-nav {
    display: flex;
    gap: 12px;
    align-items: center;
}

.top-nav a {
    text-decoration: none;
    color: var(--text);
}

.page {
    padding-top: 20px;
    padding-bottom: 32px;
}

.hero {
    background: linear-gradient(135deg, #2d4eb5 0%, #4f7ff8 45%, #8a5cff 100%);
    color: #fff;
    border-radius: 20px;
    padding: 34px 28px;
    margin-bottom: 18px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 16px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.home-subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.home-subject-pill {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    min-height: 136px;
    padding: 16px 16px;
    border-radius: 20px;
    text-decoration: none;
    color: #0f172a;
    font-weight: 800;
    letter-spacing: 0.35px;
    text-align: left;
    border: 1px solid var(--border);
    background: linear-gradient(180deg, #ffffff, #f4f7ff);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    position: relative;
    overflow: hidden;
}

.subject-title {
    font-size: 15px;
    margin-bottom: 8px;
    line-height: 1.15;
    max-width: 100%;
    overflow-wrap: normal;
    word-break: normal;
}

.subject-theme {
    font-size: 12px;
    font-weight: 600;
    color: #334155;
    letter-spacing: 0.2px;
    line-height: 1.28;
}

.subject-style-obshchestvoznanie {
    min-height: 150px;
    padding-left: 14px;
    padding-right: 14px;
}

.subject-style-obshchestvoznanie .subject-title {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
    white-space: nowrap;
}

.home-subject-pill::after {
    content: "";
    position: absolute;
    right: -18px;
    bottom: -22px;
    width: 92px;
    height: 92px;
    border-radius: 28px;
    transform: rotate(18deg);
    opacity: 0.22;
    background: linear-gradient(135deg, #7aa2ff, #6ee7b7);
}

.subject-decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.subject-decor::before,
.subject-decor::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    transition: transform 0.28s ease, opacity 0.28s ease;
}

.subject-decor::before {
    right: -14px;
    top: -12px;
    width: 84px;
    height: 84px;
    opacity: 0.3;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.12) 62%, transparent 68%);
}

.subject-decor::after {
    left: 14px;
    bottom: 12px;
    width: 58px;
    height: 2px;
    opacity: 0.34;
    border-radius: 3px;
    background: linear-gradient(90deg, rgba(18, 32, 58, 0), rgba(18, 32, 58, 0.24), rgba(18, 32, 58, 0));
}

.subject-style-matematika .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(125, 152, 255, 0.44), rgba(125, 152, 255, 0.12) 64%, transparent 70%); }
.subject-style-matematika .subject-decor::after { width: 64px; transform: rotate(-8deg); }
.subject-style-fizika .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(78, 177, 202, 0.42), rgba(78, 177, 202, 0.11) 64%, transparent 70%); }
.subject-style-fizika .subject-decor::after { width: 62px; transform: rotate(8deg); }
.subject-style-himiya .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(94, 201, 139, 0.42), rgba(94, 201, 139, 0.11) 64%, transparent 70%); }
.subject-style-himiya .subject-decor::after { width: 60px; transform: rotate(-6deg); }
.subject-style-biologiya .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(95, 192, 119, 0.42), rgba(95, 192, 119, 0.11) 64%, transparent 70%); }
.subject-style-biologiya .subject-decor::after { width: 58px; transform: rotate(7deg); }
.subject-style-informatika .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(99, 139, 245, 0.42), rgba(99, 139, 245, 0.11) 64%, transparent 70%); }
.subject-style-informatika .subject-decor::after { width: 66px; transform: rotate(-9deg); }
.subject-style-russkiy-yazyk .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(238, 160, 93, 0.42), rgba(238, 160, 93, 0.11) 64%, transparent 70%); }
.subject-style-russkiy-yazyk .subject-decor::after { width: 62px; transform: rotate(6deg); }
.subject-style-angliyskiy-yazyk .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(154, 122, 243, 0.42), rgba(154, 122, 243, 0.11) 64%, transparent 70%); }
.subject-style-angliyskiy-yazyk .subject-decor::after { width: 60px; transform: rotate(-6deg); }
.subject-style-istoriya .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(242, 143, 114, 0.42), rgba(242, 143, 114, 0.11) 64%, transparent 70%); }
.subject-style-istoriya .subject-decor::after { width: 64px; transform: rotate(8deg); }
.subject-style-obshchestvoznanie .subject-decor::before { background: radial-gradient(circle at 35% 35%, rgba(227, 187, 82, 0.42), rgba(227, 187, 82, 0.11) 64%, transparent 70%); }
.subject-style-obshchestvoznanie .subject-decor::after { width: 61px; transform: rotate(-7deg); }

.home-subject-pill:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(22, 34, 56, 0.16);
    filter: saturate(1.08);
}

.home-subject-pill:hover .subject-decor::before {
    transform: scale(1.07);
    opacity: 0.45;
}

.home-subject-pill:hover .subject-decor::after {
    transform: scaleX(1.08);
    opacity: 0.48;
}

.subject-style-matematika { background: linear-gradient(160deg, #edf3ff 0%, #dbe8ff 100%); border-color: #bfd2ff; }
.subject-style-matematika::after { background: linear-gradient(135deg, #5d88ff, #7ea0ff); }
.subject-style-fizika { background: linear-gradient(160deg, #e8fff7 0%, #d8f7f2 100%); border-color: #b8e7dd; }
.subject-style-fizika::after { background: linear-gradient(135deg, #24c2b2, #5db6ff); }
.subject-style-russkiy-yazyk { background: linear-gradient(160deg, #fff4e8 0%, #ffe9d0 100%); border-color: #ffd7ac; }
.subject-style-russkiy-yazyk::after { background: linear-gradient(135deg, #ff9b52, #ffd27b); }
.subject-style-himiya { background: linear-gradient(160deg, #ecfff1 0%, #dffbe8 100%); border-color: #c0eccf; }
.subject-style-himiya::after { background: linear-gradient(135deg, #50d487, #84e5aa); }
.subject-style-biologiya { background: linear-gradient(160deg, #f0fff3 0%, #e1f7e7 100%); border-color: #c6ebd2; }
.subject-style-biologiya::after { background: linear-gradient(135deg, #4fc06f, #8fe08f); }
.subject-style-informatika { background: linear-gradient(160deg, #eef4ff 0%, #e0ecff 100%); border-color: #c8d9ff; }
.subject-style-informatika::after { background: linear-gradient(135deg, #5487ff, #67b2ff); }
.subject-style-angliyskiy-yazyk { background: linear-gradient(160deg, #f7efff 0%, #efe3ff 100%); border-color: #ddc8ff; }
.subject-style-angliyskiy-yazyk::after { background: linear-gradient(135deg, #8b6bff, #c199ff); }
.subject-style-istoriya { background: linear-gradient(160deg, #fff2eb 0%, #ffe3d7 100%); border-color: #ffc7b0; }
.subject-style-istoriya::after { background: linear-gradient(135deg, #ff8c6b, #ffbe8f); }
.subject-style-obshchestvoznanie { background: linear-gradient(160deg, #fff9e9 0%, #fff1cf 100%); border-color: #ffdf9c; }
.subject-style-obshchestvoznanie::after { background: linear-gradient(135deg, #eebf48, #ffd874); }

body.theme-neutral::before { opacity: 1; transform: translate(0, 0); }
body.theme-neutral::after { opacity: 1; }
body.theme-neutral .theme-wash { background: linear-gradient(120deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 66%); }

body.theme-matematika::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(126, 160, 255, 0.34), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(95, 142, 255, 0.24), transparent 72%); transform: translate(-4px, 0); }
body.theme-fizika::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(93, 182, 255, 0.32), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(68, 196, 179, 0.24), transparent 72%); transform: translate(-4px, 0); }
body.theme-himiya::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(80, 212, 135, 0.3), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(128, 228, 173, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-biologiya::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(79, 192, 111, 0.28), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(143, 224, 143, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-informatika::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(84, 135, 255, 0.3), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(103, 178, 255, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-russkiy-yazyk::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(255, 155, 82, 0.28), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(255, 210, 123, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-angliyskiy-yazyk::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(139, 107, 255, 0.28), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(193, 153, 255, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-istoriya::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(255, 140, 107, 0.28), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(255, 190, 143, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-obshchestvoznanie::before { opacity: 1; background: radial-gradient(920px 520px at 16% 16%, rgba(238, 191, 72, 0.28), transparent 72%), radial-gradient(760px 440px at 82% 24%, rgba(255, 216, 116, 0.22), transparent 72%); transform: translate(-4px, 0); }
body.theme-matematika .theme-wash { background: linear-gradient(120deg, rgba(78, 124, 255, 0.34) 0%, rgba(78, 124, 255, 0) 66%); }
body.theme-fizika .theme-wash { background: linear-gradient(120deg, rgba(60, 168, 212, 0.32) 0%, rgba(60, 168, 212, 0) 66%); }
body.theme-himiya .theme-wash { background: linear-gradient(120deg, rgba(72, 186, 124, 0.3) 0%, rgba(72, 186, 124, 0) 66%); }
body.theme-biologiya .theme-wash { background: linear-gradient(120deg, rgba(84, 181, 108, 0.3) 0%, rgba(84, 181, 108, 0) 66%); }
body.theme-informatika .theme-wash { background: linear-gradient(120deg, rgba(82, 125, 236, 0.34) 0%, rgba(82, 125, 236, 0) 66%); }
body.theme-russkiy-yazyk .theme-wash { background: linear-gradient(120deg, rgba(224, 150, 88, 0.32) 0%, rgba(224, 150, 88, 0) 66%); }
body.theme-angliyskiy-yazyk .theme-wash { background: linear-gradient(120deg, rgba(143, 113, 232, 0.32) 0%, rgba(143, 113, 232, 0) 66%); }
body.theme-istoriya .theme-wash { background: linear-gradient(120deg, rgba(229, 136, 102, 0.32) 0%, rgba(229, 136, 102, 0) 66%); }
body.theme-obshchestvoznanie .theme-wash { background: linear-gradient(120deg, rgba(214, 178, 74, 0.32) 0%, rgba(214, 178, 74, 0) 66%); }

body.theme-matematika::after,
body.theme-fizika::after,
body.theme-himiya::after,
body.theme-biologiya::after,
body.theme-informatika::after,
body.theme-russkiy-yazyk::after,
body.theme-angliyskiy-yazyk::after,
body.theme-istoriya::after,
body.theme-obshchestvoznanie::after { opacity: 1; }

body.theme-matematika .theme-note { color: rgb(67, 98, 189); }
body.theme-fizika .theme-note { color: rgb(33, 125, 153); }
body.theme-himiya .theme-note { color: rgb(48, 145, 99); }
body.theme-biologiya .theme-note { color: rgb(53, 142, 83); }
body.theme-informatika .theme-note { color: rgb(58, 94, 184); }
body.theme-russkiy-yazyk .theme-note { color: rgb(176, 112, 52); }
body.theme-angliyskiy-yazyk .theme-note { color: rgb(111, 78, 191); }
body.theme-istoriya .theme-note { color: rgb(177, 89, 64); }
body.theme-obshchestvoznanie .theme-note { color: rgb(170, 124, 29); }
body.theme-neutral .theme-note { color: rgb(96, 110, 147); }

.subject-tile {
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    transition: transform 0.15s ease;
    background: #fafbff;
}

.subject-tile:hover {
    transform: translateY(-2px);
}

.teacher-list {
    display: grid;
    gap: 12px;
}

/* Список преподавателей: карточки с крупным фото */
.teacher-list--cards {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
    margin-top: 16px;
}

.teacher-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--surface);
    display: flex;
    flex-direction: column;
    min-height: 100%;
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.teacher-card:hover {
    box-shadow: 0 12px 32px rgba(33, 44, 75, 0.14);
    transform: translateY(-3px);
}

.teacher-card-media {
    position: relative;
    display: block;
    aspect-ratio: 4 / 5;
    max-height: 420px;
    background: linear-gradient(160deg, #e4ebff, #f3f6ff);
    overflow: hidden;
}

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

.teacher-card-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.teacher-card-placeholder {
    width: 100%;
    height: 100%;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(2.75rem, 12vw, 4rem);
    font-weight: 800;
    color: #2d4eb5;
    background: linear-gradient(165deg, #d8e4ff, #eef2ff);
}

.teacher-card-body {
    padding: 14px 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.teacher-card-name {
    margin: 0;
    font-size: 1.12rem;
    line-height: 1.3;
    font-weight: 700;
}

.teacher-card-name a {
    text-decoration: none;
    color: inherit;
}

.teacher-card-name a:hover {
    color: var(--accent);
}

.teacher-card-bio {
    margin: 0;
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
    flex: 1;
}

.teacher-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 4px;
}

.teacher-row {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    align-items: center;
}

.teacher-row-main {
    display: flex;
    align-items: center;
    gap: 12px;
}

.teacher-row-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Страница преподавателя: крупное фото */
.teacher-hero .teacher-photo {
    width: min(220px, 36vw);
    height: min(220px, 36vw);
    min-width: 140px;
    min-height: 140px;
    border-radius: 18px;
    object-fit: cover;
    border: 1px solid var(--border);
    background: #eaf0ff;
    flex-shrink: 0;
}

.teacher-photo-sm {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid var(--border);
    background: #eaf0ff;
}

.teacher-photo-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #173264;
}

.teacher-hero {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 12px;
}

.teacher-chat-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    border-radius: 16px;
}

.teacher-detail-main-grid {
    align-items: start;
}

.teacher-chat-feed {
    background: linear-gradient(180deg, #f8fbff 0%, #f2f7ff 100%);
    padding: 12px;
    min-height: 280px;
    max-height: 420px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.teacher-chat-message {
    max-width: 88%;
    border: 1px solid #dbe4f9;
    background: #ffffff;
    border-radius: 14px;
    padding: 9px 11px;
    box-shadow: 0 1px 2px rgba(17, 24, 39, 0.06);
}

.teacher-chat-message.is-enter {
    animation: teacher-chat-pop-in 280ms ease-out;
}

.teacher-chat-message.is-student {
    align-self: flex-end;
    background: linear-gradient(180deg, #e8f0ff 0%, #dce9ff 100%);
    border-color: #bfd2fa;
}

.teacher-chat-message.is-teacher {
    align-self: flex-start;
}

.teacher-chat-role {
    font-size: 11px;
    color: #52638a;
    margin-bottom: 3px;
    font-weight: 700;
}

.teacher-chat-text {
    font-size: 14px;
    line-height: 1.45;
    white-space: pre-wrap;
    word-break: break-word;
}

.teacher-chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-bottom: 1px solid #dfe6f5;
    background: #ffffff;
}

.teacher-chat-avatar {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #4d7dff, #3c67dd);
    color: #fff;
    font-weight: 800;
    font-size: 14px;
}

.teacher-chat-title {
    margin: 0;
    font-size: 15px;
}

.teacher-chat-subtitle {
    margin: 0;
    font-size: 12px;
    color: #5f7095;
}

.teacher-chat-shell {
    border-top: 1px solid #e6ecfa;
}

.teacher-chat-shell--with-list {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 14px;
}

.chat-list-pane {
    border: 1px solid #e3e9f6;
    border-radius: 14px;
    background: #f9fbff;
    padding: 8px;
}

.chat-main-pane {
    border: 1px solid #e3e9f6;
    border-radius: 14px;
    background: #ffffff;
    overflow: hidden;
}

.chat-list-stack {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chat-list-item {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    text-align: left;
    background: #ffffff;
    border: 1px solid #e0e7f3;
    border-radius: 10px;
    padding: 10px 11px;
    cursor: pointer;
    color: #20304e;
    font: inherit;
    line-height: 1.3;
    transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.chat-list-item:hover {
    background: #f5f9ff;
    border-color: #c7d5ec;
}

.chat-list-item.is-active {
    border-color: #8eabdd;
    background: #edf3ff;
    box-shadow: inset 2px 0 0 #4f7cff;
}

.chat-list-item .muted {
    color: #6e7f9f;
}

.chat-list-item-head {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: center;
    margin-bottom: 4px;
}

@media (max-width: 900px) {
    .teacher-chat-shell--with-list {
        grid-template-columns: 1fr;
    }
}

.teacher-chat-form {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    padding: 10px;
    border-top: 1px solid #dfe7f8;
    background: #ffffff;
}

#teacher-chat-input {
    min-height: 44px;
    max-height: 120px;
    resize: vertical;
    border-radius: 12px;
    border-color: #ced9f0;
}

.teacher-chat-send {
    white-space: nowrap;
    border-radius: 10px;
}

.teacher-chat-status {
    display: block;
    padding: 0 10px 10px;
}

.teacher-chat-typing {
    align-self: flex-start;
    display: inline-flex;
    gap: 6px;
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px solid #dbe4f9;
    background: #ffffff;
}

.teacher-chat-typing span {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: #7d91c9;
    animation: teacher-chat-dot 1s infinite ease-in-out;
}

.teacher-chat-typing span:nth-child(2) {
    animation-delay: 120ms;
}

.teacher-chat-typing span:nth-child(3) {
    animation-delay: 240ms;
}

@keyframes teacher-chat-dot {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
    40% { transform: translateY(-3px); opacity: 1; }
}

@keyframes teacher-chat-pop-in {
    from { opacity: 0; transform: translateY(6px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Student calendar on teacher page */
.tripi-student-cal-grid {
    margin-top: 12px;
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.tripi-student-cal-cell {
    border: 1px solid #dbe4f5;
    background: #ffffff;
    border-radius: 10px;
    min-height: 56px;
    padding: 8px 6px;
    text-align: left;
    color: #1f2a44;
}

.tripi-student-cal-cell--muted {
    opacity: 0.45;
    background: #f8faff;
}

.tripi-student-cal-cell--today {
    border-color: #9fb7ff;
    box-shadow: inset 0 0 0 1px #9fb7ff;
}

.tripi-student-cal-cell--has {
    background: #eef4ff;
    border-color: #bcd0ff;
}

.tripi-student-cal-detail {
    margin-top: 10px;
    border: 1px solid #dbe4f5;
    border-radius: 10px;
    background: #f8fbff;
    padding: 10px 12px;
}

@media (min-width: 720px) {
    .teacher-detail-main-grid {
        grid-template-columns: minmax(0, 1.45fr) minmax(320px, 1fr);
    }
    .teacher-book-card {
        grid-column: 1;
        grid-row: 1;
    }
    .teacher-upcoming-card {
        grid-column: 1;
        grid-row: 2;
    }
    .teacher-chat-card {
        grid-column: 2;
        grid-row: 1 / span 2;
        position: sticky;
        top: 82px;
    }
}

.btn {
    display: inline-block;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
}

.btn-sm {
    padding: 8px 12px;
    font-size: 14px;
    border-radius: 999px;
}

.btn-ghost {
    color: var(--accent);
    background: #edf2ff;
    border-color: #d5defd;
}

.btn-support {
    background: linear-gradient(135deg, #0ea5a0, #0ea37a);
    border-color: #0b928f;
}

.btn-login {
    color: #334155;
    background: #eef2ff;
    border-color: #dbe3ff;
}

.btn-register {
    background: linear-gradient(135deg, #3559e7, #557df7);
    border-color: #3559e7;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.category-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-decoration: none;
    padding: 16px 14px;
    min-height: 118px;
    border-radius: 14px;
    border: 1px solid var(--border);
    color: var(--text);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(33, 44, 75, 0.12);
}

.category-card-oge { background: #eef7ff; }
.category-card-ege { background: #f0fff6; }
.category-card-olympiad { background: #f7efff; }

/* ---------- Страница предмета (красивый макет, только русские подписи в интерфейсе) ---------- */
.subject-detail {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.subject-detail-hero {
    position: relative;
    padding: 28px 26px 30px;
    border-radius: 20px;
    background: linear-gradient(135deg, #2a4cad 0%, #3d6ae0 42%, #6b4dc4 100%);
    color: #fff;
    box-shadow: 0 18px 40px rgba(45, 78, 181, 0.28);
    overflow: hidden;
}

.subject-detail-hero::after {
    content: "";
    position: absolute;
    right: -20%;
    top: -40%;
    width: 55%;
    height: 160%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 68%);
    pointer-events: none;
}

.subject-detail-hero__eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.88;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.subject-detail-hero__title {
    margin: 0 0 12px;
    font-size: clamp(1.65rem, 4vw, 2.15rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.subject-detail-hero__lead {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.55;
    opacity: 0.94;
    max-width: 52rem;
    position: relative;
    z-index: 1;
}

.subject-detail-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px 22px 24px;
    box-shadow: 0 4px 22px rgba(25, 34, 54, 0.06);
}

.subject-detail-block--muted {
    background: linear-gradient(180deg, #fafbff 0%, #ffffff 100%);
}

.subject-detail-block__title {
    margin: 0 0 6px;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
}

.subject-detail-block__subtitle {
    margin: 0 0 20px;
    font-size: 14px;
    color: var(--muted);
    line-height: 1.45;
}

.subject-detail-picks {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.subject-detail-pick {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: 168px;
    padding: 18px 16px 16px;
    border-radius: 16px;
    text-decoration: none;
    color: var(--text);
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 12px rgba(25, 34, 54, 0.06);
}

.subject-detail-pick:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(33, 44, 75, 0.14);
}

.subject-detail-pick__accent {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    border-radius: 16px 0 0 16px;
}

.subject-detail-pick--oge {
    background: linear-gradient(165deg, #f0f7ff 0%, #ffffff 55%);
}

.subject-detail-pick--oge .subject-detail-pick__accent {
    background: linear-gradient(180deg, #3b7ddd, #5ecfff);
}

.subject-detail-pick--ege {
    background: linear-gradient(165deg, #f0fdf6 0%, #ffffff 55%);
}

.subject-detail-pick--ege .subject-detail-pick__accent {
    background: linear-gradient(180deg, #22a86b, #5ee0a8);
}

.subject-detail-pick--olympiad {
    background: linear-gradient(165deg, #f7f0ff 0%, #ffffff 55%);
}

.subject-detail-pick--olympiad .subject-detail-pick__accent {
    background: linear-gradient(180deg, #7c4dff, #b47cff);
}

.subject-detail-pick__body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    padding-left: 8px;
}

.subject-detail-pick__name {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1.15;
}

.subject-detail-pick__meta {
    font-size: 13px;
    line-height: 1.45;
    color: var(--muted);
}

.subject-detail-pick__cta {
    margin-top: auto;
    padding-top: 12px;
    padding-left: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

.subject-detail-pick:hover .subject-detail-pick__cta {
    text-decoration: underline;
}

.subject-detail-tracks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.subject-track {
    margin: 0;
    padding: 18px 18px 20px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    position: relative;
    padding-top: 22px;
}

.subject-track::before {
    content: "";
    position: absolute;
    left: 18px;
    top: 0;
    width: 48px;
    height: 4px;
    border-radius: 0 0 6px 6px;
}

.subject-track--oge::before {
    background: linear-gradient(90deg, #3b7ddd, #7ec8ff);
}

.subject-track--ege::before {
    background: linear-gradient(90deg, #1fa774, #5fe0ac);
}

.subject-track--olymp::before {
    background: linear-gradient(90deg, #7c4dff, #c4a3ff);
}

.subject-track__title {
    margin: 0 0 10px;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.subject-track__text {
    margin: 0;
    font-size: 14px;
    line-height: 1.55;
    color: #3d4a63;
}

.list {
    display: grid;
    gap: 10px;
}

.pill-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pill {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 12px;
    text-decoration: none;
    color: var(--text);
    background: #f8fafc;
}

.review-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.review-item {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px;
}

.review-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

label {
    display: block;
    margin-top: 10px;
    margin-bottom: 4px;
    font-size: 14px;
}

input, textarea, select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    font: inherit;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-row input {
    width: auto;
}

.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 24px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 16px;
}

.footer-grid a {
    display: block;
    color: var(--text);
    text-decoration: none;
    margin-bottom: 6px;
}

.muted {
    color: var(--muted);
}

.chip {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
}

.auth-tabs {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.auth-tab {
    border: 1px solid var(--border);
    background: #f8fafc;
    color: var(--text);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
}

.auth-tab.is-active {
    border-color: var(--accent);
    background: #eef4ff;
}

.auth-pane {
    display: none;
    margin-top: 10px;
}

.auth-pane.is-active {
    display: block;
}

.auth-flow-switch {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.auth-flow-btn {
    border: 1px solid var(--border);
    background: #f8fafc;
    color: var(--text);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
}

.auth-flow-btn.is-active {
    border-color: var(--accent);
    background: #eef4ff;
}

.auth-flow-pane {
    display: none;
    margin-top: 12px;
}

.auth-flow-pane.is-active {
    display: block;
}

/* Страница /auth/: один сценарий и один шаг без наложения полей */
#auth-page-root .auth-flow-pane:not(.is-active) {
    display: none !important;
}

.auth-step {
    display: none;
    border: 1px dashed var(--border);
    border-radius: 12px;
    padding: 12px;
    background: #fbfdff;
}

.auth-step.is-active {
    display: block;
}

#auth-page-root .auth-flow-pane.is-active .auth-step:not(.is-active) {
    display: none !important;
}

#auth-page-root .auth-flow-pane.is-active .auth-step.is-active {
    display: block !important;
}

.auth-step-title {
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
}

.auth-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.52);
}

.auth-modal-card {
    position: relative;
    width: min(560px, calc(100% - 24px));
    margin: 38px auto;
    max-height: calc(100vh - 76px);
    overflow: auto;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 18px;
    box-shadow: 0 25px 65px rgba(15, 23, 42, 0.32);
}

.auth-modal-close {
    position: absolute;
    right: 8px;
    top: 8px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
}

#auth-modal .auth-flow-pane:not(.is-active),
#auth-modal .auth-step:not(.is-active) {
    display: none !important;
}

@media (max-width: 720px) {
    .theme-notes {
        display: none;
    }

    body::before,
    body::after {
        display: none;
    }

    .top-nav {
        gap: 8px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .hero {
        padding: 24px 18px;
        border-radius: 16px;
    }

    .home-subject-grid {
        grid-template-columns: 1fr 1fr;
    }

    .home-subject-pill {
        min-height: 132px;
        border-radius: 18px;
        font-size: 14px;
    }

    .subject-theme {
        font-size: 11px;
    }

    .auth-modal-card {
        margin: 12px auto;
        max-height: calc(100vh - 24px);
        border-radius: 14px;
    }

    .subject-style-obshchestvoznanie {
        min-height: 142px;
    }

    .subject-decor::before,
    .subject-decor::after {
        opacity: 0.7;
    }

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

    .subject-detail-hero {
        padding: 22px 18px 24px;
        border-radius: 16px;
    }

    .subject-detail-picks {
        grid-template-columns: 1fr;
    }

    .subject-detail-pick {
        min-height: 0;
    }

    .teacher-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .teacher-row-actions {
        width: 100%;
    }

    .teacher-row-actions .btn {
        flex: 1;
        text-align: center;
    }

    .teacher-hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .teacher-hero > div:last-child {
        width: 100%;
        text-align: left;
    }

    .teacher-hero .teacher-photo {
        width: min(280px, 88vw);
        height: min(280px, 88vw);
        max-width: 100%;
        margin: 0 auto;
        border-radius: 20px;
    }

    .teacher-list--cards {
        grid-template-columns: 1fr;
    }

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

.lesson-room-shell {
    background: linear-gradient(160deg, #0f172a 0%, #111b2e 60%, #13203b 100%);
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 14px 40px rgba(7, 16, 38, 0.32);
    color: #e6ebf8;
    padding: 16px;
}

body.lesson-standalone-page {
    margin: 0;
    min-height: 100vh;
    background: #0b1220;
    color: #e6ebf8;
    font-family: Inter, Arial, sans-serif;
}

.lesson-standalone-main {
    min-height: 100vh;
    padding: 10px;
}

.lesson-room-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.lesson-room-title {
    margin: 0 0 4px;
    color: #f3f7ff;
}

.lesson-room-meta {
    margin: 0;
    color: #9cadcb;
    font-size: 13px;
}

.lesson-back-link {
    border-color: rgba(120, 143, 193, 0.45);
    color: #d7e2ff;
}

.lesson-room-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 360px);
    gap: 12px;
    min-height: 560px;
}

.lesson-main-tile {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: #0a1220;
    border: 1px solid rgba(164, 186, 240, 0.2);
}

.lesson-main-tile video {
    width: 100%;
    height: 100%;
    min-height: 560px;
    object-fit: cover;
    background: #05090f;
}

.lesson-tile-caption {
    position: absolute;
    left: 12px;
    bottom: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(2, 8, 23, 0.62);
    color: #d8e4ff;
    font-size: 12px;
}

.lesson-stage-statuses {
    position: absolute;
    left: 12px;
    top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.lesson-status-pill {
    background: rgba(15, 23, 42, 0.76);
    border: 1px solid rgba(141, 171, 236, 0.45);
    border-radius: 999px;
    color: #e7efff;
    font-size: 12px;
    padding: 5px 10px;
}

.lesson-status-pill-secondary {
    border-color: rgba(128, 149, 190, 0.38);
    color: #cdd9f1;
}

.lesson-self-pip {
    position: absolute;
    right: 12px;
    bottom: 12px;
    width: 220px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(157, 178, 226, 0.5);
    background: #060d19;
}

.lesson-self-pip video {
    width: 100%;
    min-height: 130px;
    max-height: 150px;
    object-fit: cover;
    background: #02060d;
}

.lesson-self-pip span {
    display: block;
    padding: 4px 8px;
    font-size: 12px;
    color: #d8e2f8;
    background: rgba(8, 15, 28, 0.78);
}

.lesson-board-panel {
    display: flex;
    flex-direction: column;
    background: #f8fbff;
    border-radius: 16px;
    border: 1px solid #d8e5ff;
    padding: 12px;
    color: #12213d;
}

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

.lesson-board-head h2 {
    margin: 0;
    font-size: 20px;
}

.lesson-board-status {
    margin: 8px 0 10px;
    color: #4a5a78;
    font-size: 12px;
}

.lesson-board-canvas-wrap {
    flex: 1;
    border: 1px solid #d6dff0;
    border-radius: 12px;
    padding: 8px;
    background: #fff;
}

#lesson-board-canvas {
    width: 100%;
    height: 100%;
    min-height: 420px;
    display: block;
    border: 1px solid #eef2f9;
    border-radius: 8px;
    touch-action: none;
    cursor: crosshair;
    background: #ffffff;
}

.lesson-control-bar {
    margin-top: 12px;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.lesson-control-btn {
    min-width: 146px;
}

.lesson-control-btn.is-active {
    background: linear-gradient(135deg, #2d67ff, #4f84ff);
    color: #fff;
    border-color: transparent;
}

.lesson-mobile-info {
    display: none;
}

@media (max-width: 1100px) {
    .lesson-room-stage {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .lesson-main-tile video {
        min-height: 420px;
    }

    .lesson-board-panel {
        min-height: 440px;
    }
}

@media (max-width: 760px) {
    .lesson-room-shell {
        padding: 10px;
    }

    .lesson-room-topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .lesson-main-tile {
        display: none;
    }

    .lesson-mobile-info {
        display: block;
    }

    .lesson-mobile-info-card {
        background: #0b1324;
        border: 1px solid rgba(155, 177, 222, 0.28);
        border-radius: 12px;
        padding: 10px;
        margin-bottom: 10px;
    }

    .lesson-mobile-info-card h3 {
        margin: 0 0 8px;
        font-size: 16px;
        color: #f2f6ff;
    }

    .lesson-mobile-video-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .lesson-mobile-video-cell {
        border-radius: 10px;
        overflow: hidden;
        background: #050b16;
        border: 1px solid rgba(150, 171, 213, 0.3);
    }

    .lesson-mobile-video-cell span {
        display: block;
        font-size: 11px;
        color: #cfdbf4;
        padding: 4px 6px;
    }

    .lesson-mobile-video-cell video {
        width: 100%;
        min-height: 110px;
        object-fit: cover;
        background: #02060d;
    }

    .lesson-board-panel {
        min-height: 380px;
    }

    #lesson-board-canvas {
        min-height: 300px;
    }
}

.cabinet-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 16px;
}
.cabinet-nav a {
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
}
.cabinet-nav a.is-active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.cabinet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.cabinet-table th,
.cabinet-table td {
    text-align: left;
    padding: 8px 6px;
    border-bottom: 1px solid var(--border);
}
.teacher-chat-message.is-admin .teacher-chat-role {
    color: var(--accent);
}

.weekboard-card {
    padding-bottom: 12px;
}
.weekboard-toolbar {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
}
.weekboard-toolbar h2 {
    margin: 0 0 4px;
}
.weekboard-range {
    font-size: 15px;
}
.weekboard-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 16px;
    align-items: center;
    margin: 10px 0 12px;
    font-size: 13px;
}
.wb-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
    margin-right: 6px;
    vertical-align: -1px;
    border: 1px solid var(--border);
}
.wb-dot-open { background: #eef3ff; }
.wb-dot-closed {
    background: repeating-linear-gradient(-45deg, #d5dceb, #d5dceb 3px, #eef0f6 3px, #eef0f6 6px);
}
.wb-dot-busy {
    background: repeating-linear-gradient(-38deg, #c4b5fd, #c4b5fd 3px, #ede9fe 3px, #ede9fe 6px);
}
.wb-dot-lesson { background: linear-gradient(90deg, #3459df, #8b5cf6); border: 0; }
.weekboard-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 14px;
    align-items: start;
}
.weekboard-scroll {
    overflow: auto;
    border: 1px solid #d7def0;
    border-radius: 14px;
    background: #f7f9ff;
}
.weekboard-grid {
    --wb-hour: 52px;
    --wb-gutter: 46px;
    min-width: 720px;
    position: relative;
}
.wb-head,
.wb-body-row {
    display: grid;
    grid-template-columns: var(--wb-gutter) repeat(7, minmax(0, 1fr));
}
.wb-head {
    position: sticky;
    top: 0;
    z-index: 3;
    background: #eef2ff;
    border-bottom: 1px solid #d7def0;
}
.wb-dayhead {
    padding: 8px 4px;
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    border-left: 1px solid #e2e8f6;
}
.wb-dayhead.is-today { color: var(--accent); }
.wb-dayhead.is-off { color: #7c6aad; background: #f3eefe; }
.wb-gutter {
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    padding: 0 6px;
    line-height: var(--wb-hour);
}
.wb-cell {
    height: calc(var(--wb-hour) / 2);
    border-left: 1px solid #e2e8f6;
    border-bottom: 1px solid #edf1fb;
    position: relative;
    cursor: pointer;
}
.wb-cell.is-hour {
    border-bottom-color: #d7def0;
}
.wb-cell.is-open { background: rgba(255, 255, 255, 0.78); }
.wb-cell.is-closed {
    background: repeating-linear-gradient(-45deg, rgba(148, 163, 184, 0.18), rgba(148, 163, 184, 0.18) 4px, rgba(241, 245, 255, 0.5) 4px, rgba(241, 245, 255, 0.5) 8px);
}
.wb-cell.is-pick {
    background: rgba(52, 89, 223, 0.22);
    outline: 1px solid rgba(52, 89, 223, 0.45);
}
.wb-col {
    position: relative;
}
.wb-block {
    position: absolute;
    left: 4px;
    right: 4px;
    border-radius: 8px;
    padding: 4px 6px;
    font-size: 11px;
    line-height: 1.25;
    overflow: hidden;
    cursor: pointer;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(25, 34, 54, 0.08);
}
.wb-block.is-lesson {
    background: linear-gradient(180deg, #3d63e8, #5b4fd4);
    color: #fff;
}
.wb-block.is-pending { background: linear-gradient(180deg, #d97706, #b45309); }
.wb-block.is-done { background: linear-gradient(180deg, #0f766e, #115e59); }
.wb-block.is-cancel { background: #94a3b8; color: #fff; }
.wb-block.is-busy {
    background: repeating-linear-gradient(-38deg, rgba(139, 92, 246, 0.28), rgba(139, 92, 246, 0.28) 5px, rgba(237, 233, 254, 0.7) 5px, rgba(237, 233, 254, 0.7) 10px);
    color: #4c1d95;
    box-shadow: none;
    border: 1px dashed #8b5cf6;
}
.wb-now {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: #8b5cf6;
    z-index: 4;
    pointer-events: none;
}
.wb-now::before {
    content: "";
    position: absolute;
    left: -4px;
    top: -3px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #8b5cf6;
}
.weekboard-side {
    border: 1px solid #d7def0;
    border-radius: 14px;
    padding: 14px;
    background: #fbfcff;
    min-height: 220px;
}
.weekboard-side h3 { margin: 0 0 8px; font-size: 16px; }
.weekboard-side .chip { margin-right: 6px; }
.weekboard-hours {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}
.weekboard-hours summary {
    cursor: pointer;
    font-weight: 700;
}
.weekboard-modal label { display: block; margin-top: 8px; }
.weekboard-modal input,
.weekboard-modal select {
    width: 100%;
    margin-top: 4px;
}
@media (max-width: 960px) {
    .weekboard-body { grid-template-columns: 1fr; }
    .weekboard-side { min-height: 0; }
}