:root {
    --blue: #1a73e8;
    --blue-hover: #1765cc;
    --blue-press: #174ea6;
    --blue-soft: #e8f0fe;
    --blue-text: #1967d2;
    --text: #202124;
    --muted: #5f6368;
    --border: #dadce0;
    --bg: #f8f9fa;
    --white: #fff;
    --danger: #d93025;
    --danger-soft: #fce8e6;
    --success: #188038;
    --success-soft: #e6f4ea;
    --warning: #ea8600;
    --warning-soft: #fef7e0;
    --shadow: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --radius: 8px;
    --sidebar: 256px;
    --topbar: 64px;
    --font: "Roboto", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.icon { width: 18px; height: 18px; flex: 0 0 auto; }
h1, h2, h3 { font-weight: 400; letter-spacing: 0; margin: 0 0 8px; }
h1 { font-size: 22px; }
h2 { font-size: 16px; font-weight: 500; }
.muted { color: var(--muted); }
.page-lead { margin: 0 0 20px; color: var(--muted); }

.mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--blue);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    flex: 0 0 auto;
}
.brand-name { display: block; font-weight: 500; color: var(--text); line-height: 1.2; }
.brand-sub { display: block; font-size: 12px; color: var(--muted); }

/* Auth */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    background: #fff;
}
.auth-card {
    width: 100%;
    max-width: 450px;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 48px 40px 36px;
}
.auth-card .brand-lockup {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 28px;
}
.auth-card h1 { font-size: 24px; margin-bottom: 8px; }
.auth-footer { margin-top: 24px; color: var(--muted); }
.setup-steps { padding-left: 18px; color: var(--muted); }
.setup-steps code { font-size: 13px; background: var(--bg); padding: 1px 6px; border-radius: 4px; }

.landing {
    max-width: 960px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.landing-hero { max-width: 640px; }
.landing-hero h1 { font-size: 36px; line-height: 1.2; margin: 16px 0; }
.landing-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.landing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 48px;
}

/* Shell */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: var(--sidebar);
    background: #fff;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 20;
}
.sidebar-brand {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 16px 20px;
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand:hover { text-decoration: none; }
.side-nav { padding: 12px 8px; display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 16px;
    border-radius: 0 24px 24px 0;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
}
.nav-item:hover { background: #f1f3f4; text-decoration: none; }
.nav-item.is-active {
    background: var(--blue-soft);
    color: var(--blue-text);
}
.sidebar-foot { padding: 16px; border-top: 1px solid var(--border); }
.channel-chip {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 8px;
    border-radius: 8px;
    background: var(--bg);
}
.channel-chip img { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.chip-title { font-weight: 500; font-size: 13px; }
.chip-sub { font-size: 12px; color: var(--muted); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
    height: var(--topbar);
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-title { font-size: 16px; font-weight: 500; flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.account-menu { position: relative; }
.account-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 4px 10px 4px 4px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: #fff;
    cursor: pointer;
    font: inherit;
    color: inherit;
    max-width: 280px;
}
.account-switcher:hover { background: var(--bg); }
.switcher-mark {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--blue-soft);
    color: var(--blue-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex: 0 0 auto;
}
.switcher-mark.sm { width: 28px; height: 28px; font-size: 11px; }
.switcher-copy { display: flex; flex-direction: column; align-items: flex-start; min-width: 0; text-align: left; }
.switcher-name { font-weight: 500; font-size: 13px; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 180px; display: block; }
.switcher-id { font-size: 11px; color: var(--muted); }
.switcher-dropdown { min-width: 300px; }
.switcher-item {
    display: flex !important;
    align-items: center;
    gap: 10px;
}
.switcher-item.is-current { background: var(--blue-soft); color: var(--blue-text); }
.switcher-item .icon { margin-left: auto; color: var(--blue); }
.account-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 0;
    background: transparent;
    cursor: pointer;
    font: inherit;
    color: inherit;
}
.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #fbbc04;
    color: #202124;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}
.account-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    min-width: 240px;
    padding: 8px 0;
}
.account-dropdown a {
    display: block;
    padding: 10px 16px;
    color: var(--text);
}
.account-dropdown a:hover { background: var(--bg); text-decoration: none; }
.account-meta { padding: 12px 16px 10px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.account-meta-name { font-weight: 500; }
.content { padding: 24px 32px 48px; }

.menu-toggle { display: none; }
.icon-btn {
    border: 0;
    background: transparent;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--muted);
}
.icon-btn:hover { background: #f1f3f4; }
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(32, 33, 36, 0.4);
    z-index: 15;
}

/* Buttons & forms */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    padding: 0 16px;
    border-radius: 4px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 1px 2px rgba(60,64,67,.3); }
.btn-primary:hover { background: var(--blue-hover); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--blue-text); }
.btn-outline:hover { background: var(--blue-soft); }
.btn-danger { background: #fff; border-color: var(--border); color: var(--danger); }
.btn-danger:hover { background: var(--danger-soft); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.input, select.input, textarea.input {
    width: 100%;
    height: 48px;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0 14px;
    font: inherit;
    color: var(--text);
    background: #fff;
    outline: none;
}
textarea.input { height: auto; padding: 12px 14px; min-height: 90px; }
.input:focus { border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue); }
.help { font-size: 12px; color: var(--muted); margin-top: 6px; }
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 8px 16px;
}
.check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
}
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; }

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.kpi { padding: 16px 20px; }
.kpi-label { color: var(--muted); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .3px; }
.kpi-value { font-size: 28px; font-weight: 400; margin-top: 6px; }
.kpi-hint { color: var(--muted); font-size: 12px; margin-top: 4px; }

.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.table-wrap { overflow: auto; }
table.data {
    width: 100%;
    border-collapse: collapse;
}
table.data th, table.data td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
table.data th { color: var(--muted); font-weight: 500; font-size: 12px; }
table.data tr:hover td { background: #f8f9fa; }
.video-cell { display: flex; gap: 12px; align-items: center; white-space: normal; min-width: 280px; }
.video-cell img { width: 88px; height: 50px; object-fit: cover; border-radius: 4px; background: #eee; flex: 0 0 auto; }
.video-title { font-weight: 500; color: var(--text); }
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}
.badge-warn { background: var(--warning-soft); color: #b06000; }
.badge-muted { background: var(--bg); color: var(--muted); }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }

.flash-stack { display: grid; gap: 8px; margin-bottom: 16px; }
.flash {
    border-radius: 4px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    background: #fff;
}
.flash-error { background: var(--danger-soft); border-color: #f5c6c2; color: #b3261e; }
.flash-success { background: var(--success-soft); border-color: #ceead6; color: var(--success); }
.flash-info { background: var(--blue-soft); border-color: #d2e3fc; color: var(--blue-text); }

.empty-state { text-align: center; padding: 56px 24px; }
.empty-visual {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--blue-soft);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
}
.empty-visual .icon { width: 24px; height: 24px; }

.wizard-steps {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.step-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-weight: 500;
    padding: 8px 4px;
}
.step-pill .n {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}
.step-pill.is-active { color: var(--blue-text); }
.step-pill.is-active .n { background: var(--blue); color: #fff; border-color: var(--blue); }
.step-pill.is-done { color: var(--success); }
.step-pill.is-done .n { background: var(--success-soft); border-color: var(--success); color: var(--success); }

.summary-table { width: 100%; border-collapse: collapse; }
.summary-table th, .summary-table td { padding: 10px 0; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.summary-table th { width: 180px; color: var(--muted); font-weight: 500; }
.total-row td { font-size: 18px; font-weight: 500; border-bottom: 0; padding-top: 16px; }

.pay-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
.card-form .row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.channel-hero {
    display: flex;
    gap: 16px;
    align-items: center;
}
.channel-hero img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }

.toolbar { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }

.google-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 4px;
    padding: 8px 14px;
    font: inherit;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    text-decoration: none;
}
.google-btn:hover { background: var(--bg); text-decoration: none; }

.filters { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.filters .form-group { margin: 0; min-width: 160px; }

@media (max-width: 1100px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .pay-grid { grid-template-columns: 1fr; }
    .landing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
    .sidebar {
        position: fixed;
        transform: translateX(-100%);
        transition: transform .2s ease;
    }
    .sidebar.is-open { transform: none; }
    .menu-toggle { display: inline-flex; }
    .account-name { display: none; }
    .switcher-copy { display: none; }
    .account-switcher { max-width: none; padding-right: 8px; }
    .content { padding: 16px; }
    .kpi-grid { grid-template-columns: 1fr; }
    .auth-card { padding: 32px 20px; }
}