/* =========================================================
   STUDYFLOW — MODERN STUDY DASHBOARD
   ========================================================= */

:root {
    --bg: #f5f7fb;
    --bg-2: #eef2f8;
    --card: #ffffff;
    --card-soft: #f8fafc;
    --input: #ffffff;
    --text: #172033;
    --muted: #68758a;
    --border: #e0e6ef;
    --border-strong: #b5c0d2;

    --primary: #356dff;
    --primary-2: #6c4cff;
    --primary-soft: #edf2ff;
    --primary-text: #ffffff;

    --success-bg: #eaf8f0;
    --success-text: #187543;
    --success-fill: #21a366;

    --warning-bg: #fff6df;
    --warning-text: #9a6500;

    --danger-bg: #fff0f0;
    --danger-text: #b33232;
    --danger-border: #efc9c9;

    --low-bg: #eef3f8;
    --low-text: #4a6078;

    --shadow-sm: 0 8px 24px rgba(26, 39, 67, 0.06);
    --shadow-md: 0 18px 50px rgba(26, 39, 67, 0.09);
    --backdrop: rgba(14, 20, 32, 0.62);

    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bg: #0d131d;
        --bg-2: #121a26;
        --card: #161f2c;
        --card-soft: #1a2432;
        --input: #101823;
        --text: #edf2f9;
        --muted: #99a7bb;
        --border: #293547;
        --border-strong: #4a5a71;

        --primary: #76a0ff;
        --primary-2: #a18bff;
        --primary-soft: #222e47;
        --primary-text: #0f1620;

        --success-bg: #173124;
        --success-text: #82dda4;
        --success-fill: #5bcf88;

        --warning-bg: #392d12;
        --warning-text: #f0cb70;

        --danger-bg: #3b1b20;
        --danger-text: #ffaaaa;
        --danger-border: #67323a;

        --low-bg: #243040;
        --low-text: #bcc9da;

        --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.20);
        --shadow-md: 0 18px 50px rgba(0, 0, 0, 0.34);

        color-scheme: dark;
    }
}

html[data-theme="light"] {
    color-scheme: light;
}

html[data-theme="dark"] {
    --bg: #0d131d;
    --bg-2: #121a26;
    --card: #161f2c;
    --card-soft: #1a2432;
    --input: #101823;
    --text: #edf2f9;
    --muted: #99a7bb;
    --border: #293547;
    --border-strong: #4a5a71;

    --primary: #76a0ff;
    --primary-2: #a18bff;
    --primary-soft: #222e47;
    --primary-text: #0f1620;

    --success-bg: #173124;
    --success-text: #82dda4;
    --success-fill: #5bcf88;

    --warning-bg: #392d12;
    --warning-text: #f0cb70;

    --danger-bg: #3b1b20;
    --danger-text: #ffaaaa;
    --danger-border: #67323a;

    --low-bg: #243040;
    --low-text: #bcc9da;

    --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.20);
    --shadow-md: 0 18px 50px rgba(0, 0, 0, 0.34);

    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    background:
        radial-gradient(circle at 10% 0%, rgba(53, 109, 255, 0.08), transparent 28%),
        radial-gradient(circle at 90% 5%, rgba(108, 76, 255, 0.07), transparent 24%),
        var(--bg);
    color: var(--text);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system,
        BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.45;
}

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

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

:focus-visible {
    outline: 3px solid rgba(53, 109, 255, 0.30);
    outline-offset: 2px;
}

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

.app-shell {
    min-height: 100vh;
}

body.is-loading [data-needs-wasm] {
    pointer-events: none;
    opacity: 0.5;
}


/* =========================================================
   TOPBAR
   ========================================================= */

.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    min-height: 82px;
    padding: 16px clamp(18px, 4vw, 46px);
    background: color-mix(in srgb, var(--card) 88%, transparent);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 13px;
    min-width: 0;
}

.brand-mark {
    width: 44px;
    height: 44px;
    flex: none;
    display: grid;
    place-items: center;
    border-radius: 14px;
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: 0 10px 24px rgba(53, 109, 255, 0.25);
}

.eyebrow {
    color: var(--primary);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.topbar h1 {
    margin: 1px 0 0;
    font-size: 20px;
    line-height: 1.15;
}

.topbar p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.save-state {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-right: 2px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    background: var(--card-soft);
}

.save-state::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--border-strong);
}

.save-state[data-state="saved"]::before {
    background: var(--success-fill);
}

.save-state[data-state="saving"]::before {
    background: var(--warning-text);
}

.save-state[data-state="warn"]::before,
.save-state[data-state="error"]::before {
    background: var(--danger-text);
}

.save-state[data-state="warn"],
.save-state[data-state="error"] {
    color: var(--danger-text);
}


/* =========================================================
   BUTTONS
   ========================================================= */

.primary-btn,
.secondary-btn,
.danger-btn {
    border-radius: 11px;
    padding: 10px 14px;
    font-weight: 700;
    border: 1px solid transparent;
    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        background 0.15s ease,
        border-color 0.15s ease;
}

.primary-btn {
    color: var(--primary-text);
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: 0 8px 18px rgba(53, 109, 255, 0.18);
}

.primary-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(53, 109, 255, 0.24);
}

.secondary-btn {
    background: var(--card);
    color: var(--text);
    border-color: var(--border);
}

.secondary-btn:hover:not(:disabled) {
    background: var(--card-soft);
    border-color: var(--border-strong);
}

.danger-btn {
    color: var(--danger-text);
    background: var(--danger-bg);
    border-color: var(--danger-border);
}

.danger-btn:hover:not(:disabled) {
    filter: brightness(0.98);
}

.small-btn {
    padding: 7px 10px;
    border-radius: 9px;
    font-size: 12px;
}

.icon-btn {
    width: 39px;
    height: 39px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--card);
    color: var(--text);
    font-size: 18px;
}

.icon-btn:hover {
    background: var(--card-soft);
}


/* =========================================================
   STATS
   ========================================================= */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    padding: 24px clamp(18px, 4vw, 46px) 0;
}

.stat-card {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    width: 43px;
    height: 43px;
    flex: none;
    display: grid;
    place-items: center;
    border-radius: 13px;
    font-size: 19px;
    font-weight: 800;
}

.stat-blue {
    color: var(--primary);
    background: var(--primary-soft);
}

.stat-amber {
    color: var(--warning-text);
    background: var(--warning-bg);
}

.stat-green {
    color: var(--success-text);
    background: var(--success-bg);
}

.stat-violet {
    color: #7656ea;
    background: rgba(118, 86, 234, 0.11);
}

.stat-title {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.stat-value {
    display: block;
    margin-top: 2px;
    font-size: 27px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}


/* =========================================================
   MAIN LAYOUT
   ========================================================= */

.main-grid {
    display: grid;
    grid-template-columns: 218px minmax(0, 1fr);
    gap: 22px;
    padding: 22px clamp(18px, 4vw, 46px) 42px;
}

.sidebar {
    position: sticky;
    top: 105px;
    height: fit-content;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: color-mix(in srgb, var(--card) 96%, transparent);
    box-shadow: var(--shadow-sm);
}

.side-title {
    padding: 3px 10px 11px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.10em;
    text-transform: uppercase;
}

.menu-btn {
    width: 100%;
    border: 0;
    border-radius: 11px;
    background: transparent;
    color: var(--text);
    padding: 11px 12px;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    text-align: left;
    font-weight: 650;
    transition: background 0.15s ease, color 0.15s ease;
}

.menu-btn:hover {
    background: var(--primary-soft);
}

.menu-btn.active {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: 0 8px 18px rgba(53, 109, 255, 0.18);
}

.menu-count {
    min-width: 23px;
    padding: 2px 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    color: inherit;
    font-size: 11px;
    font-weight: 800;
    text-align: center;
}

.menu-btn:not(.active) .menu-count {
    background: var(--primary-soft);
    color: var(--primary);
}

.menu-count[hidden] {
    display: none;
}

.sidebar-note {
    display: flex;
    gap: 9px;
    margin: 18px 6px 3px;
    padding: 11px 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card-soft);
}

.sidebar-note strong,
.sidebar-note span {
    display: block;
}

.sidebar-note strong {
    font-size: 11px;
}

.sidebar-note span {
    margin-top: 2px;
    color: var(--muted);
    font-size: 10px;
}

.mini-dot {
    width: 8px;
    height: 8px;
    margin-top: 4px;
    border-radius: 50%;
    background: var(--success-fill);
    box-shadow: 0 0 0 5px var(--success-bg);
}

.content {
    min-width: 0;
}

.page-section {
    display: none;
}

.page-section.active {
    display: block;
}

.section-header {
    margin-bottom: 17px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 15px;
}

.section-header h2 {
    margin: 3px 0 0;
    font-size: 25px;
    line-height: 1.15;
}

.section-header p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.section-kicker {
    color: var(--primary);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.compact-header {
    margin-top: 23px;
}

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


/* =========================================================
   HERO
   ========================================================= */

.hero-panel {
    min-height: 250px;
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
    border-radius: 20px;
    padding: clamp(24px, 4vw, 38px);
    background:
        radial-gradient(circle at 85% 20%, rgba(255,255,255,0.20), transparent 26%),
        linear-gradient(135deg, #1f56d8 0%, #5e4ce6 50%, #7b4bd8 100%);
    color: #fff;
    box-shadow: 0 20px 45px rgba(57, 76, 184, 0.23);
}

.hero-panel::after {
    content: "";
    position: absolute;
    inset: auto -70px -120px auto;
    width: 290px;
    height: 290px;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
}

.hero-copy {
    position: relative;
    z-index: 1;
    max-width: 660px;
}

.hero-kicker {
    display: inline-flex;
    padding: 6px 9px;
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: 999px;
    background: rgba(255,255,255,0.10);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.hero-copy h2 {
    margin: 12px 0 9px;
    max-width: 640px;
    font-size: clamp(30px, 4vw, 45px);
    line-height: 1.05;
    letter-spacing: -0.025em;
}

.hero-copy p {
    max-width: 590px;
    margin: 0;
    color: rgba(255,255,255,0.84);
    font-size: 14px;
}

.hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 21px;
}

.hero-btn.secondary-btn {
    color: #fff;
    border-color: rgba(255,255,255,0.22);
    background: rgba(255,255,255,0.10);
}

.hero-btn.secondary-btn:hover {
    background: rgba(255,255,255,0.17);
}

.hero-visual {
    min-height: 180px;
    position: relative;
    display: grid;
    place-items: center;
}

.hero-core {
    width: 100px;
    height: 100px;
    position: relative;
    z-index: 2;
    display: grid;
    place-items: center;
    border-radius: 28px;
    border: 1px solid rgba(255,255,255,0.24);
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    box-shadow: 0 18px 40px rgba(0,0,0,0.16);
    font-size: 40px;
    font-weight: 850;
}

.hero-orbit {
    position: absolute;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 50%;
}

.orbit-one {
    width: 190px;
    height: 190px;
}

.orbit-two {
    width: 260px;
    height: 260px;
}


/* =========================================================
   DASHBOARD CARDS
   ========================================================= */

.up-next {
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--card);
    padding: 18px;
    box-shadow: var(--shadow-sm);
}

.up-next .queue-item.flat {
    border: 0;
    padding: 5px 0 0;
    background: transparent;
    box-shadow: none;
}

.up-next-empty {
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
}

.up-next-empty h3 {
    margin: 0;
    font-size: 15px;
}

.up-next-empty p {
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 14px;
}

.action-card {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: var(--card);
    color: var(--text);
    text-align: left;
    box-shadow: var(--shadow-sm);
    transition:
        transform 0.15s ease,
        border-color 0.15s ease,
        box-shadow 0.15s ease;
}

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

.action-icon {
    width: 42px;
    height: 42px;
    flex: none;
    display: grid;
    place-items: center;
    border-radius: 12px;
    font-size: 19px;
    font-weight: 800;
}

.action-icon.blue {
    color: var(--primary);
    background: var(--primary-soft);
}

.action-icon.violet {
    color: #7656ea;
    background: rgba(118, 86, 234, 0.11);
}

.action-icon.amber {
    color: var(--warning-text);
    background: var(--warning-bg);
}

.action-icon.green {
    color: var(--success-text);
    background: var(--success-bg);
}

.action-title,
.action-sub {
    display: block;
}

.action-title {
    font-size: 14px;
    font-weight: 800;
}

.action-sub {
    margin-top: 3px;
    color: var(--muted);
    font-size: 11px;
}

.system-card {
    margin-top: 14px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: var(--card-soft);
}

.system-copy {
    display: flex;
    align-items: center;
    gap: 10px;
}

.system-status-icon {
    width: 33px;
    height: 33px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    color: var(--primary);
    background: var(--primary-soft);
    font-size: 13px;
    font-weight: 800;
}

.system-card h3 {
    margin: 0;
    font-size: 13px;
}

.system-card p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 11px;
}


/* =========================================================
   FORM + TOOLBAR
   ========================================================= */

.toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 170px 170px;
    gap: 9px;
    margin-bottom: 8px;
}

.search-wrap {
    position: relative;
}

.search-input,
.filter-select,
.field input,
.field select,
.modal-box input:not([type="hidden"]),
.modal-box select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--input);
    color: var(--text);
}

.search-input {
    padding-left: 37px;
    padding-right: 53px;
}

.search-input:focus,
.filter-select:focus,
.field input:focus,
.field select:focus,
.modal-box input:focus,
.modal-box select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(53, 109, 255, 0.10);
    outline: none;
}

.search-symbol {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
}

kbd {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 6px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-soft);
    color: var(--muted);
    font-size: 10px;
}

.result-count {
    min-height: 17px;
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 11px;
}


/* =========================================================
   TABLE
   ========================================================= */

.topics-table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
    font-size: 13px;
}

th {
    color: var(--muted);
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--card-soft);
}

tbody tr:last-child td {
    border-bottom: 0;
}

tbody tr:hover {
    background: color-mix(in srgb, var(--primary-soft) 50%, transparent);
}

tr.is-done .cell-subject,
tr.is-done td[data-label="Chapter"] {
    color: var(--muted);
}

.col-done {
    width: 58px;
    text-align: center;
}

.col-actions {
    width: 1%;
    white-space: nowrap;
}

.done-check {
    width: 18px;
    height: 18px;
    accent-color: var(--success-fill);
    cursor: pointer;
}

.empty-state {
    padding: 31px;
    text-align: center;
    color: var(--muted);
}

.table-actions {
    display: flex;
    gap: 6px;
}


/* =========================================================
   BADGES
   ========================================================= */

.badge {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 800;
}

.badge-high {
    color: var(--danger-text);
    background: var(--danger-bg);
}

.badge-medium {
    color: var(--warning-text);
    background: var(--warning-bg);
}

.badge-low {
    color: var(--low-text);
    background: var(--low-bg);
}

.badge-pending {
    color: var(--warning-text);
    background: var(--warning-bg);
}

.badge-completed {
    color: var(--success-text);
    background: var(--success-bg);
}


/* =========================================================
   QUEUE
   ========================================================= */

.queue-builder {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 120px auto;
    align-items: end;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.field label {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.queue-available {
    padding-bottom: 9px;
    color: var(--muted);
    font-size: 11px;
}

.queue-available span,
.queue-available strong {
    display: block;
}

.queue-available strong {
    margin-top: 1px;
    color: var(--text);
    font-size: 18px;
}

.queue-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 12px 1px;
}

.queue-list {
    display: grid;
    gap: 9px;
}

.queue-item {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 9px 15px;
    padding: 14px 15px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.queue-item.next {
    border-color: color-mix(in srgb, var(--primary) 50%, var(--border));
    box-shadow: 0 12px 28px rgba(53, 109, 255, 0.10);
}

.queue-item h3 {
    margin: 0;
    font-size: 14px;
}

.queue-item p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.queue-meta {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    flex-wrap: wrap;
}

.queue-buttons {
    grid-column: 1 / -1;
    display: flex;
    gap: 7px;
}

.next-label {
    display: inline-block;
    margin-bottom: 4px;
    color: var(--primary);
    font-size: 10px;
    font-weight: 850;
    text-transform: uppercase;
    letter-spacing: 0.09em;
}


/* =========================================================
   PROGRESS
   ========================================================= */

.progress-card {
    margin-bottom: 12px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--card);
    box-shadow: var(--shadow-sm);
}

.progress-hero {
    background:
        radial-gradient(circle at 90% 0%, rgba(53, 109, 255, 0.10), transparent 26%),
        var(--card);
}

.progress-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.progress-row h3 {
    margin: 3px 0 0;
    font-size: 16px;
}

.progress-row > strong {
    font-size: 32px;
    line-height: 1;
}

.progress-bar {
    height: 11px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--primary-soft);
}

.progress-bar.small {
    height: 7px;
}

.progress-fill {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--primary), var(--primary-2));
    transition: width 0.25s ease;
}

.progress-summary {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 13px;
    color: var(--muted);
    font-size: 11px;
}

.priority-row + .priority-row {
    margin-top: 14px;
}


/* =========================================================
   DIALOGS
   ========================================================= */

dialog.modal-box {
    width: min(560px, calc(100% - 28px));
    max-height: 90vh;
    margin: auto;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 20px;
    background: var(--card);
    color: var(--text);
    box-shadow: 0 30px 90px rgba(0,0,0,0.25);
}

dialog.modal-box::backdrop {
    background: var(--backdrop);
    backdrop-filter: blur(3px);
}

.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.modal-header h2 {
    margin: 3px 0 0;
    font-size: 20px;
}

.modal-box label {
    display: block;
    margin-bottom: 13px;
    font-size: 12px;
    font-weight: 750;
}

.modal-box label input,
.modal-box label select {
    margin-top: 7px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-hint {
    margin: 0 0 10px;
    color: var(--muted);
    font-size: 11px;
}

.form-error {
    margin: 0 0 10px;
    padding: 9px 11px;
    border: 1px solid var(--danger-border);
    border-radius: 9px;
    color: var(--danger-text);
    background: var(--danger-bg);
    font-size: 11px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}


/* =========================================================
   TOASTS
   ========================================================= */

.toast-area {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 80;
    display: grid;
    gap: 8px;
    max-width: min(380px, calc(100% - 36px));
}

.toast {
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--card);
    color: var(--text);
    box-shadow: var(--shadow-md);
    font-size: 12px;
    animation: toast-in 0.18s ease;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast-success {
    color: var(--success-text);
    background: var(--success-bg);
    border-color: var(--success-fill);
}

.toast-error {
    color: var(--danger-text);
    background: var(--danger-bg);
    border-color: var(--danger-border);
}

.toast.hide {
    opacity: 0;
    transform: translateY(6px);
}

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

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
        transition: none !important;
        animation: none !important;
    }
}


/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 1100px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .queue-builder {
        grid-template-columns: 1fr 1fr;
    }

    .queue-available {
        padding-bottom: 0;
    }
}

@media (max-width: 850px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions {
        width: 100%;
        justify-content: flex-start;
    }

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

    .sidebar {
        position: static;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 5px;
        padding: 10px;
    }

    .side-title,
    .sidebar-note {
        display: none;
    }

    .menu-btn {
        width: auto;
        margin: 0;
    }

    .hero-panel {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

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

    .search-wrap {
        grid-column: 1 / -1;
    }
}

@media (max-width: 620px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 9px;
    }

    .stat-card {
        padding: 13px;
    }

    .stat-icon {
        width: 36px;
        height: 36px;
        border-radius: 11px;
        font-size: 16px;
    }

    .stat-value {
        font-size: 23px;
    }

    .main-grid {
        padding-top: 16px;
    }

    .section-header {
        align-items: flex-start;
        flex-direction: column;
    }

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

    .hero-panel {
        padding: 24px;
    }

    .hero-copy h2 {
        font-size: 32px;
    }

    .queue-builder,
    .form-row {
        grid-template-columns: 1fr;
    }

    .queue-actions {
        align-items: flex-start;
        flex-direction: column;
    }

    .up-next-empty,
    .system-card {
        align-items: flex-start;
        flex-direction: column;
    }

    .progress-summary {
        flex-direction: column;
        gap: 6px;
    }

    /* table -> compact cards on small screens */
    .topics-table-wrapper {
        border: 0;
        background: transparent;
        box-shadow: none;
    }

    table,
    tbody,
    tr,
    td {
        display: block;
        width: 100%;
    }

    thead {
        display: none;
    }

    tbody tr {
        position: relative;
        margin-bottom: 9px;
        padding: 10px 12px;
        border: 1px solid var(--border);
        border-radius: 13px;
        background: var(--card);
        box-shadow: var(--shadow-sm);
    }

    tbody tr:hover {
        background: var(--card);
    }

    td {
        border: 0;
        padding: 5px 0;
    }

    td[data-label] {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }

    td[data-label]::before {
        content: attr(data-label);
        color: var(--muted);
        font-size: 10px;
        font-weight: 750;
    }

    .col-done {
        width: 100%;
        text-align: left;
    }

    .col-actions {
        width: 100%;
        padding-top: 7px;
    }

    .table-actions .small-btn {
        flex: 1;
    }

    td.empty-state {
        display: block;
    }

    .search-input {
        padding-right: 12px;
    }

    kbd {
        display: none;
    }
}

/* hidden attribute always wins over display rules */
[hidden] {
    display: none !important;
}