@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@500;600;700;800&family=Space+Grotesk:wght@500;700&display=swap');

:root {
    --v2-bg: #f2f5fa;
    --v2-bg-strong: #e9eef6;
    --v2-surface: #ffffff;
    --v2-surface-soft: #f6f8fc;
    --v2-sidebar: #0f1727;
    --v2-sidebar-soft: #1b2740;
    --v2-line: #d7dfeb;
    --v2-line-strong: #c6d1e1;
    --v2-text: #111827;
    --v2-muted: #617089;
    --v2-primary: #275cff;
    --v2-primary-soft: #eaf0ff;
    --v2-success: #1f9e61;
    --v2-danger: #bb3a3a;
    --v2-radius-xl: 22px;
    --v2-radius-lg: 16px;
    --v2-radius: 12px;
    --v2-shadow: 0 16px 34px rgba(16, 24, 40, 0.09);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', 'Segoe UI', Arial, sans-serif;
    color: var(--v2-text);
    background:
        radial-gradient(900px 420px at -8% -12%, rgba(39, 92, 255, 0.1), transparent 68%),
        radial-gradient(720px 420px at 102% -14%, rgba(9, 33, 89, 0.13), transparent 70%),
        linear-gradient(180deg, var(--v2-bg) 0%, var(--v2-bg-strong) 100%);
}

a {
    color: inherit;
    text-decoration: none;
}

.v2-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 272px minmax(0, 1fr);
}

.v2-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    background:
        radial-gradient(360px 280px at -20% -10%, rgba(80, 119, 255, 0.4), transparent 72%),
        linear-gradient(180deg, #111a2d 0%, #0d1524 100%);
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 12px;
}

.v2-menu-toggle {
    display: none;
}

.v2-brand {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--v2-radius-lg);
    padding: 14px;
    color: #f8fbff;
    background: linear-gradient(140deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04));
    backdrop-filter: blur(4px);
}

.v2-brand strong {
    display: block;
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.v2-brand small {
    display: block;
    margin-top: 3px;
    font-size: 12px;
    color: rgba(241, 246, 255, 0.85);
}

.v2-user {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--v2-radius-lg);
    background: rgba(255, 255, 255, 0.07);
    padding: 10px;
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 10px;
    align-items: center;
    color: #f2f7ff;
}

.v2-avatar {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(145deg, #fafcff, #dbe8ff);
    color: #17223b;
    display: grid;
    place-items: center;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.v2-user strong {
    display: block;
    line-height: 1.15;
}

.v2-user small {
    color: rgba(242, 247, 255, 0.8);
    font-size: 12px;
}

.v2-nav {
    display: grid;
    align-content: start;
    gap: 7px;
    overflow: auto;
    padding-right: 2px;
}

.v2-nav a,
.v2-foot a {
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(244, 248, 255, 0.92);
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.v2-dot {
    width: 18px;
    display: inline-flex;
    justify-content: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: 12px;
}

.v2-nav a:hover,
.v2-foot a:hover {
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.12);
    transform: translateX(1px);
}

.v2-nav a.active {
    background: linear-gradient(145deg, #f2f6ff, #dfe9ff);
    color: #0e1a31;
    border-color: #dce8ff;
}

.v2-nav a.active .v2-dot {
    color: #1d376d;
}

.v2-foot {
    display: grid;
    gap: 7px;
}

.v2-main {
    min-width: 0;
    display: grid;
    grid-template-rows: auto 1fr;
}

.v2-menu-state {
    position: fixed;
    opacity: 0;
    pointer-events: none;
}

.v2-backdrop {
    display: none;
}

.v2-topbar {
    position: sticky;
    top: 0;
    z-index: 15;
    border-bottom: 1px solid var(--v2-line);
    background: rgba(246, 249, 255, 0.88);
    backdrop-filter: blur(10px);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.v2-top-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.v2-topbar h1 {
    margin: 0;
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.v2-top-meta {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.v2-top-meta span {
    border: 1px solid var(--v2-line);
    border-radius: 999px;
    background: #fff;
    color: var(--v2-muted);
    font-size: 12px;
    font-weight: 700;
    padding: 7px 10px;
}

.v2-content {
    padding: 20px;
    display: grid;
    gap: 14px;
}

.v2-card {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius-xl);
    background: var(--v2-surface);
    box-shadow: var(--v2-shadow);
    padding: 16px;
}

.v2-card h2,
.v2-card h3 {
    margin: 0;
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

.v2-dashboard {
    display: grid;
    gap: 12px;
}

.v2-hero-panel {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    background:
        radial-gradient(340px 210px at 100% 0%, rgba(39, 92, 255, 0.18), transparent 74%),
        linear-gradient(145deg, #ffffff 0%, #f8fbff 100%);
}

.v2-eyebrow {
    margin: 0 0 6px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #495a77;
}

.v2-hero-panel h2 {
    font-size: 31px;
    margin-bottom: 6px;
}

.v2-hero-actions {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.v2-chip-btn {
    border: 1px solid var(--v2-line-strong);
    border-radius: 999px;
    background: #fff;
    color: #1e315c;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 13px;
    font-size: 12px;
    font-weight: 800;
    transition: border-color 120ms ease, transform 120ms ease;
}

.v2-chip-btn:hover {
    border-color: #9db4ef;
    transform: translateY(-1px);
}

.v2-hero-aside {
    min-width: 210px;
    display: grid;
    gap: 8px;
}

.v2-hero-badge {
    border: 1px solid #c8d8ff;
    background: #eaf1ff;
    color: #2a468c;
    border-radius: 999px;
    text-align: center;
    padding: 8px 10px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.v2-mini-kpis {
    display: grid;
    gap: 7px;
}

.v2-mini-kpis > div {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius);
    background: #fff;
    padding: 9px 10px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
}

.v2-mini-kpis strong {
    font-size: 21px;
}

.v2-mini-kpis span {
    font-size: 12px;
    color: var(--v2-muted);
}

.v2-kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 8px;
}

.v2-kpi-card {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius-lg);
    background: linear-gradient(155deg, #ffffff 0%, #f6f9ff 100%);
    padding: 12px;
}

.v2-kpi-card strong {
    display: block;
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    font-size: 31px;
    line-height: 1;
    letter-spacing: -0.03em;
}

.v2-kpi-card span {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--v2-muted);
}

.v2-dashboard-columns {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 12px;
}

.v2-column-main,
.v2-column-side {
    display: grid;
    gap: 12px;
    align-content: start;
}

.v2-panel {
    padding: 15px;
}

.v2-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 10px;
}

.v2-panel h3 {
    font-size: 20px;
}

.v2-inline-link {
    font-size: 12px;
    font-weight: 800;
    color: #3255a3;
}

.v2-action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(134px, 1fr));
    gap: 8px;
}

.v2-action {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius);
    min-height: 90px;
    padding: 10px;
    display: grid;
    align-content: center;
    justify-items: start;
    gap: 6px;
    transition: transform 120ms ease, border-color 120ms ease;
}

.v2-action:hover {
    transform: translateY(-2px);
    border-color: #9fb7ed;
}

.v2-action span {
    font-size: 18px;
}

.v2-action strong {
    font-size: 13px;
}

.v2-action-a { background: #f1f5ff; }
.v2-action-b { background: #f0fbf8; }
.v2-action-c { background: #fff7ef; }
.v2-action-d { background: #f4f1ff; }
.v2-action-e { background: #eef8ff; }
.v2-action-f { background: #f7f8fb; }

.v2-lesson-list {
    display: grid;
    gap: 8px;
}

.v2-lesson-item {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius);
    background: #fff;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.v2-lesson-item:hover {
    border-color: #a2b7ea;
}

.v2-lesson-item strong {
    font-size: 14px;
}

.v2-lesson-item small {
    display: block;
    margin-top: 3px;
    color: var(--v2-muted);
    font-size: 12px;
}

.v2-lesson-item span {
    border: 1px solid var(--v2-line);
    border-radius: 999px;
    background: #f8faff;
    font-size: 12px;
    font-weight: 800;
    color: #3e5175;
    padding: 6px 8px;
}

.v2-pill {
    border: 1px solid #ccd9ef;
    border-radius: 999px;
    background: #f0f6ff;
    color: #36518a;
    font-size: 11px;
    font-weight: 800;
    padding: 6px 9px;
}

.v2-stat-stack {
    display: grid;
    gap: 7px;
}

.v2-stat-stack > div {
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius);
    background: var(--v2-surface-soft);
    padding: 10px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
}

.v2-stat-stack span {
    color: var(--v2-muted);
    font-size: 12px;
}

.v2-stat-stack strong {
    font-size: 20px;
}

.v2-bridge-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.v2-bridge-mode {
    border: 1px solid #c8d8ff;
    background: #ebf1ff;
    color: #2c4d97;
    border-radius: 999px;
    padding: 7px 10px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.v2-bridge-frame {
    width: 100%;
    min-height: calc(100vh - 215px);
    border: 1px solid var(--v2-line);
    border-radius: var(--v2-radius-lg);
    background: #fff;
}

.v2-auth-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
}

.v2-auth-wrap {
    width: min(460px, 92vw);
}

.v2-auth-card {
    background:
        radial-gradient(300px 160px at 100% 0%, rgba(39, 92, 255, 0.2), transparent 72%),
        #fff;
}

.v2-form {
    display: grid;
    gap: 10px;
}

.v2-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.v2-grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.v2-col-span-3 {
    grid-column: span 3;
}

.v2-form label {
    display: grid;
    gap: 6px;
    font-size: 12px;
    color: var(--v2-muted);
    font-weight: 700;
}

.v2-form input,
.v2-form select,
.v2-form textarea {
    border: 1px solid var(--v2-line);
    border-radius: 12px;
    padding: 10px 11px;
    font: inherit;
    background: #fff;
    color: var(--v2-text);
}

.v2-form input:focus,
.v2-form select:focus,
.v2-form textarea:focus {
    outline: none;
    border-color: #98afe6;
    box-shadow: 0 0 0 4px rgba(39, 92, 255, 0.13);
}

.v2-button {
    border: 1px solid #20386d;
    background: linear-gradient(145deg, #2b4a8d, #1b2f5f);
    color: #fff;
    border-radius: 999px;
    min-height: 40px;
    padding: 8px 14px;
    font-weight: 800;
    cursor: pointer;
}

.v2-button:hover {
    filter: brightness(1.05);
}

.v2-inline-actions {
    display: flex;
    align-items: end;
    gap: 8px;
    flex-wrap: wrap;
}

.v2-table-wrap {
    width: 100%;
    overflow: auto;
}

.v2-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

.v2-table th,
.v2-table td {
    text-align: left;
    border-bottom: 1px solid var(--v2-line);
    padding: 10px 8px;
    font-size: 13px;
    vertical-align: middle;
}

.v2-table th {
    color: var(--v2-muted);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.v2-muted {
    color: var(--v2-muted);
    font-size: 13px;
}

.v2-alert {
    border: 1px solid #efb3b3;
    color: var(--v2-danger);
    background: #fff4f4;
    border-radius: 12px;
    padding: 10px;
    font-size: 13px;
}

.v2-alert.ok {
    border-color: #9ad3b5;
    color: var(--v2-success);
    background: #ecf9f1;
}

@media (max-width: 1120px) {
    .v2-shell {
        grid-template-columns: 1fr;
    }

    .v2-sidebar {
        position: fixed;
        left: -104%;
        top: 0;
        bottom: 0;
        width: min(300px, 88vw);
        z-index: 40;
        transform: none;
        transition: left 180ms ease;
        box-shadow: 0 24px 48px rgba(13, 22, 40, 0.42);
    }

    .v2-menu-state:checked + .v2-shell .v2-sidebar {
        left: 0;
    }

    .v2-menu-state:checked + .v2-shell + .v2-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 35;
        background: rgba(7, 14, 27, 0.42);
    }

    .v2-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--v2-line);
        background: #fff;
        border-radius: 11px;
        width: 40px;
        height: 40px;
        cursor: pointer;
        font-size: 16px;
        position: relative;
        z-index: 45;
    }

    .v2-dashboard-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .v2-content {
        padding: 12px;
    }

    .v2-topbar {
        padding: 10px 12px;
    }

    .v2-topbar h1 {
        font-size: 20px;
    }

    .v2-top-meta {
        display: none;
    }

    .v2-hero-panel {
        flex-direction: column;
    }

    .v2-hero-aside {
        min-width: 0;
        width: 100%;
    }

    .v2-action-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .v2-bridge-frame {
        min-height: calc(100vh - 235px);
    }

    .v2-grid-3,
    .v2-grid-4 {
        grid-template-columns: 1fr;
    }

    .v2-col-span-3 {
        grid-column: auto;
    }
}