:root {
    --bg-main: #050b1f;
    --bg-card: #111b34;
    --bg-card-soft: #162448;
    --text-main: #f4f8ff;
    --text-soft: #95a6cd;
    --primary: #2f75ff;
    --success: #21c76d;
    --danger: #ff4d61;
    --border: #22355f;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif;
    background: radial-gradient(1200px circle at 50% -10%, #15306e 0%, var(--bg-main) 45%);
    color: var(--text-main);
    min-height: 100vh;
}

.container {
    width: min(1260px, 94vw);
    margin: 0 auto;
    padding: 24px 0 44px;
}

.app-shell {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.sidebar-menu {
    position: sticky;
    top: 12px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(14, 24, 48, 0.95), rgba(10, 18, 38, 0.95));
    padding: 14px;
}

.sidebar-brand {
    font-weight: 800;
    color: #8ab8ff;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.sidebar-group + .sidebar-group {
    margin-top: 12px;
}

.sidebar-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: #7ea9ef;
    margin-bottom: 8px;
}

.sidebar-group a {
    display: block;
    text-decoration: none;
    color: #d3e2ff;
    font-size: 13px;
    border: 1px solid rgba(45, 77, 142, 0.6);
    border-radius: 10px;
    background: rgba(20, 35, 70, 0.72);
    padding: 8px 10px;
    margin-bottom: 8px;
}

.sidebar-group a:hover {
    filter: brightness(1.1);
}

.sidebar-group a.active {
    border-color: #5aa2ff;
    background: linear-gradient(180deg, rgba(43, 92, 176, 0.7), rgba(28, 64, 131, 0.75));
    color: #ffffff;
    box-shadow: 0 0 0 1px rgba(90, 162, 255, 0.32) inset;
}

.sidebar-note {
    margin: 6px 0 0;
    color: #90a9d7;
    font-size: 12px;
    line-height: 1.4;
}

.main-content {
    min-width: 0;
}

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

h1 {
    margin: 0;
    text-align: center;
    color: #62a5ff;
    font-size: clamp(30px, 4.2vw, 44px);
    font-weight: 800;
}

.subtitle {
    text-align: center;
    margin: 8px 0 16px;
    color: var(--text-soft);
    font-size: 16px;
}

.workflow-nav {
    position: sticky;
    top: 10px;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(9, 18, 38, 0.92);
    backdrop-filter: blur(6px);
}

.workflow-nav a {
    text-decoration: none;
    color: #b9ceff;
    border: 1px solid #2c4a8a;
    background: #11244a;
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 600;
}

.workflow-nav a:hover {
    filter: brightness(1.12);
}

.step-guide {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.step-item {
    border: 1px solid var(--border);
    background: rgba(17, 27, 52, 0.86);
    border-radius: 12px;
    padding: 10px 12px;
    color: #cfe0ff;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.step-item span {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #2a5fca;
    color: #fff;
    font-weight: 700;
    font-size: 12px;
}

.panel-section {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(10, 18, 38, 0.5);
    padding: 14px;
}

.grid-two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.card {
    background: linear-gradient(180deg, rgba(22, 36, 72, 0.95), rgba(12, 22, 45, 0.95));
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.24);
}

.card-mb-14 {
    margin-bottom: 14px;
}

.card h3 {
    margin: 0 0 14px;
    font-size: 14px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: #7eb0ff;
}

form {
    margin: 0;
}

.form-reset {
    margin: 0;
}

.input-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.input-row.input-column {
    flex-direction: column;
}

.container-narrow {
    max-width: 560px;
}

.select-w-170 {
    max-width: 170px;
}

.select-w-210 {
    max-width: 210px;
}

.select-w-220 {
    max-width: 220px;
}

.select-w-260 {
    max-width: 260px;
}

.checkbox-auto {
    width: auto;
}

.label-inline {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.muted-note {
    margin: 0 0 12px;
}

.muted-top-8 {
    margin-top: 8px;
}

.tag-warning {
    background: rgba(255, 77, 97, 0.15);
    color: #ffb6c0;
}

.stats-row-tight {
    margin-top: 8px;
}

.link-open {
    color: #8db6ff;
    text-decoration: none;
}

.inline-actions {
    display: inline-flex;
    gap: 8px;
}

.actions-right {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.text-right {
    text-align: right;
}

.input-top-6 {
    margin-top: 6px;
}

.footnote-gap {
    margin-top: 24px;
}

.text-pre-wrap {
    white-space: pre-wrap;
}

.input-row > * {
    min-width: 0;
}

input,
select,
textarea,
button {
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0c1630;
    color: var(--text-main);
    font-size: 15px;
    padding: 11px 12px;
}

input,
select,
textarea {
    width: 100%;
}

button {
    min-width: 108px;
    border: none;
    cursor: pointer;
    font-weight: 700;
    transition: 0.2s ease;
}

button.primary {
    background: var(--primary);
}

button.success {
    background: var(--success);
}

button.danger {
    background: var(--danger);
}

button:hover {
    filter: brightness(1.08);
}

.tag {
    margin-top: 10px;
    display: inline-block;
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(33, 199, 109, 0.15);
    color: #7df2b6;
}

.alert {
    margin: 16px 0;
    border: 1px solid;
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 14px;
}

.alert.error {
    border-color: rgba(255, 77, 97, 0.45);
    background: rgba(255, 77, 97, 0.14);
    color: #ffafba;
}

.alert.success {
    border-color: rgba(33, 199, 109, 0.45);
    background: rgba(33, 199, 109, 0.14);
    color: #8dfec2;
}

.search-wrap {
    margin: 18px 0 10px;
    display: grid;
    grid-template-columns: 1fr 1.2fr 2fr 1.3fr 1.5fr;
    gap: 12px;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 22px 0;
}

.pro-stats {
    margin-top: 10px;
    margin-bottom: 0;
}

.pro-stats-wide {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.admin-stats {
    margin-top: 8px;
    margin-bottom: 8px;
}

.stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
}

.stat-box .label {
    color: var(--text-soft);
    font-size: 12px;
}

.stat-box .value {
    margin-top: 8px;
    font-size: 28px;
    font-weight: 800;
}

.section-title {
    margin: 28px 0 12px;
    font-size: clamp(22px, 2.6vw, 30px);
    font-weight: 800;
    color: #dbe7ff;
}

.scroll-anchor {
    position: relative;
    top: -78px;
    height: 0;
    visibility: hidden;
}

.section-title.compact {
    margin-top: 18px;
    font-size: clamp(20px, 2.1vw, 24px);
}

.channel-title {
    margin: 8px 0 14px;
    font-size: clamp(22px, 3.2vw, 38px);
    letter-spacing: 1px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.video-card {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid #2a4988;
    background: #0d1730;
}

.video-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.video-content {
    padding: 10px 10px 12px;
}

.video-title {
    font-weight: 700;
    font-size: 15px;
    margin: 0 0 10px;
    line-height: 1.35;
    min-height: 40px;
}

.meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-soft);
    font-size: 13px;
}

.earn {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-weight: 700;
    color: #69ffb0;
}

.video-extra {
    margin-top: 6px;
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
    color: #9eb8e8;
}

.video-reco {
    margin-top: 10px;
    border-top: 1px solid rgba(42, 73, 136, 0.5);
    padding-top: 8px;
}

.video-reco-title {
    margin: 0;
    font-size: 13px;
    line-height: 1.35;
    color: #cddfff;
}

.video-reco-meta {
    margin-top: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
    color: #8ab0ea;
}

.copy-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.copy-mini {
    min-width: 64px;
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 8px;
    background: #234f9f;
    color: #eef4ff;
}

.table-wrap {
    margin-top: 20px;
    overflow-x: auto;
}

.stack-tight {
    margin-top: 10px;
}

.stack-xs {
    margin-top: 8px;
}

.stack-mid {
    margin-top: 12px;
}

.pro-thumb {
    width: 90px;
    border-radius: 8px;
    display: block;
}

table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
}

th,
td {
    padding: 10px 11px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    font-size: 13px;
}

th {
    background: #112145;
    color: #9ec1ff;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

td:last-child,
th:last-child {
    text-align: right;
}

.badge {
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 12px;
    border: 1px solid;
}

.badge.high {
    color: #ff9ca9;
    border-color: rgba(255, 77, 97, 0.4);
}

.badge.medium {
    color: #ffde92;
    border-color: rgba(255, 205, 87, 0.42);
}

.badge.low {
    color: #8dfec2;
    border-color: rgba(33, 199, 109, 0.46);
}

.tips {
    margin-top: 26px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.export-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.export-link {
    display: inline-block;
    border: 1px solid var(--border);
    color: #9ec1ff;
    text-decoration: none;
    padding: 9px 12px;
    border-radius: 10px;
    background: #0f1c3b;
    font-weight: 600;
}

.export-link:hover {
    filter: brightness(1.1);
}

.tip-card {
    background: rgba(17, 27, 52, 0.9);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px 16px;
}

.tip-card h4 {
    margin: 0 0 8px;
    color: #9ec1ff;
}

.tip-card ul {
    margin: 0;
    padding-left: 18px;
    color: #c7d8ff;
}

.tip-card li {
    margin-bottom: 6px;
    line-height: 1.45;
}

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

.accordion {
    margin-top: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(12, 20, 40, 0.76);
    padding: 10px 12px 14px;
}

.help-center {
    margin-top: 10px;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.guide-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(16, 28, 56, 0.88);
    padding: 12px;
}

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

.guide-icon {
    margin-right: 6px;
}

.guide-tag {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
    border: 1px solid #2c4a8a;
    color: #b7d2ff;
    background: rgba(35, 66, 127, 0.35);
}

.guide-card.tone-setup {
    border-color: rgba(92, 166, 255, 0.5);
    background: linear-gradient(180deg, rgba(16, 42, 82, 0.85), rgba(15, 28, 56, 0.9));
}

.guide-card.tone-research {
    border-color: rgba(50, 201, 143, 0.45);
    background: linear-gradient(180deg, rgba(16, 54, 57, 0.82), rgba(15, 30, 47, 0.9));
}

.guide-card.tone-ai {
    border-color: rgba(153, 120, 255, 0.48);
    background: linear-gradient(180deg, rgba(35, 30, 74, 0.84), rgba(18, 23, 52, 0.9));
}

.guide-card.tone-revenue {
    border-color: rgba(255, 194, 87, 0.45);
    background: linear-gradient(180deg, rgba(62, 46, 16, 0.78), rgba(26, 25, 44, 0.9));
}

.guide-card.tone-admin {
    border-color: rgba(255, 110, 140, 0.45);
    background: linear-gradient(180deg, rgba(68, 24, 43, 0.78), rgba(26, 24, 43, 0.9));
}

.guide-card h4 {
    margin: 0 0 8px;
    color: #a7c8ff;
    font-size: 15px;
}

.guide-card p {
    margin: 0 0 8px;
    color: #d4e2ff;
    font-size: 13px;
    line-height: 1.45;
}

.guide-card p:last-child {
    margin-bottom: 0;
}

.accordion > summary {
    list-style: none;
    cursor: pointer;
    font-weight: 700;
    color: #9ec1ff;
    margin: 2px 0 6px;
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(27, 46, 86, 0.5);
}

.accordion > summary::-webkit-details-marker {
    display: none;
}

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

    .sidebar-menu {
        position: static;
    }

    .sidebar-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .sidebar-group a {
        margin-bottom: 0;
    }

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

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

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

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

@media (max-width: 760px) {
    .grid-two,
    .tips,
    .stats-row,
    .step-guide {
        grid-template-columns: 1fr;
    }

    .pro-stats-wide {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .input-row {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

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

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

    .search-wrap {
        grid-template-columns: 1fr;
    }
}