:root, html[data-theme="light"] {
    color-scheme: light;
    --bg:#f7f4fc; --bg-g1:rgba(124,58,237,.10); --bg-g2:rgba(217,70,239,.05);
    --surface:#ffffff; --surface-muted:#f4effb; --surface-hover:#efe7fa;
    --border:#e9e0f5; --border-strong:#d8c8ef;
    --text:#241a33; --text-secondary:#403055; --text-muted:#7c6a95;
    --title-link:#4d0066; --title-link-hover:#7a0099;
    --primary:#7c3aed; --primary-hover:#6d28d9;
    --primary-soft:rgba(124,58,237,.09); --primary-soft-border:rgba(124,58,237,.22);
    --accent:#d926a9; --accent-soft:rgba(217,38,169,.12);
    --success:#16a34a; --success-soft:rgba(22,163,74,.12);
    --danger:#dc2626; --danger-soft:rgba(220,38,38,.12);
    --info:#0ea5e9; --info-soft:rgba(14,165,233,.12);
    --warning:#d97706; --warning-soft:rgba(217,119,6,.12);
    --radius:16px; --radius-sm:10px; --radius-lg:22px;
    --shadow:0 8px 24px rgba(105,60,180,.08); --shadow-sm:0 1px 2px rgba(60,30,100,.06);
    --header-bg:#ffffff;
}
html[data-theme="dark"] {
    color-scheme: dark;
    --bg:#140f22; --bg-g1:rgba(167,139,250,.14); --bg-g2:rgba(217,38,169,.08);
    --surface:#1d1731; --surface-muted:#271f42; --surface-hover:#2e2450;
    --border:#372c55; --border-strong:#46386b;
    --text:#eee9fa; --text-secondary:#d2c8e8; --text-muted:#a896c9;
    --title-link:#f2ccff; --title-link-hover:#ffffff;
    --primary:#a78bfa; --primary-hover:#c4b5fd;
    --primary-soft:rgba(167,139,250,.15); --primary-soft-border:rgba(167,139,250,.32);
    --accent:#e879f9; --accent-soft:rgba(232,121,249,.14);
    --success:#34d399; --success-soft:rgba(52,211,153,.14);
    --danger:#f87171; --danger-soft:rgba(248,113,113,.14);
    --info:#38bdf8; --info-soft:rgba(56,189,248,.14);
    --warning:#fbbf24; --warning-soft:rgba(251,191,36,.14);
    --radius:16px; --radius-sm:10px; --radius-lg:22px;
    --shadow:0 8px 24px rgba(0,0,0,.35); --shadow-sm:0 1px 2px rgba(0,0,0,.35);
    --header-bg:#181225;
}
/* Base */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s;background-image:radial-gradient(circle at top left,var(--bg-g1),transparent 32%),radial-gradient(circle at bottom right,var(--bg-g2),transparent 36%);background-attachment:fixed}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-hover)}
img{max-width:100%}
h1,h2,h3,h4{color:var(--text);font-weight:700;line-height:1.25}
h1{font-size:clamp(1.5rem,2.5vw,2rem)}
h2{font-size:clamp(1.15rem,1.8vw,1.4rem);margin-bottom:1.1rem;display:flex;align-items:center;gap:.5rem}
code{background:var(--surface-muted);padding:.15rem .4rem;border-radius:6px;font-size:.9em;color:var(--primary)}

/* Layout */
.container{max-width:1240px;margin:0 auto;padding:1.5rem 1rem 3rem}

/* Header */
.header{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;background:var(--header-bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.1rem 1.4rem;margin-bottom:1.75rem;box-shadow:var(--shadow-sm);position:sticky;top:.75rem;z-index:40}
.header h1{font-size:clamp(1.2rem,2vw,1.55rem);margin-bottom:.15rem;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.header p{color:var(--text-muted);font-size:.92rem}
.header-actions{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}

/* Theme toggle */
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:1.15rem;cursor:pointer;transition:background .2s,border-color .2s,transform .15s;flex-shrink:0;line-height:1}
.theme-toggle:hover{background:var(--surface-hover);border-color:var(--border-strong);transform:translateY(-1px)}
.theme-toggle .theme-dark,.theme-toggle .theme-light{display:none}
html[data-theme="light"] .theme-toggle .theme-light{display:inline-block}
html[data-theme="dark"] .theme-toggle .theme-dark{display:inline-block}

/* Hero */
.hero-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;margin-bottom:1.75rem;box-shadow:var(--shadow)}
.hero-section h1{color:var(--text);margin-bottom:.4rem}
.hero-section p{color:var(--text-muted);margin-bottom:.6rem}
.hero-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:1.4rem;align-items:start}
.hero-copy h1{margin:.5rem 0}
.hero-panel{display:grid;gap:1rem}
.title-box{display:inline-flex;align-items:center;padding:.5rem .9rem;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;width:fit-content;border:1px solid var(--primary-soft-border)}
.status-box{background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.2rem}
.status-box strong{display:block;margin-bottom:.4rem;color:var(--text)}
.status-box div{color:var(--text-muted);font-size:.92rem;line-height:1.7}

/* Cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:1.75rem;box-shadow:var(--shadow);transition:background .3s,border-color .3s}

/* Stats + Info grid */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.2rem}
.stat-card{background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem}
.stat-card .label{display:block;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.78rem;margin-bottom:.5rem}
.stat-card strong{display:block;font-size:1.8rem;color:var(--primary)}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1.1rem;margin-bottom:1.4rem}
.info-card{background:var(--surface-muted);padding:1.15rem 1.2rem;border-radius:var(--radius);border:1px solid var(--border);text-align:center;transition:transform .18s,box-shadow .18s}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.info-card .label{display:block;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.74rem;margin-bottom:.5rem}
.info-card .value{display:block;font-size:1.35rem;font-weight:700;color:var(--text);word-break:break-word}

/* Table */
.table-responsive{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.93rem}
thead th{text-align:left;padding:.9rem 1rem;color:var(--text-secondary);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border-strong);background:var(--surface-muted);white-space:nowrap}
tbody td{padding:.9rem 1rem;border-bottom:1px solid var(--border);vertical-align:middle;color:var(--text)}
tbody tr:last-child td{border-bottom:none}
tbody tr{transition:background .15s}
tbody tr:hover{background:var(--surface-hover)}
/* Judul video / nama channel (link dalam <strong>) - ungu tua di light, ungu muda di dark */
td strong a{color:var(--title-link);font-weight:700}
td strong a:hover{color:var(--title-link-hover)}
td.growth-col,th.growth-col{white-space:nowrap;min-width:130px}
td.growth-col{text-align:right}
th.growth-col{text-align:left}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.15rem;border-radius:var(--radius-sm);font-weight:600;font-size:.9rem;text-decoration:none;line-height:1.2;transition:background .2s,color .2s,border-color .2s,transform .15s;border:1px solid transparent;cursor:pointer;background:none;white-space:nowrap}
.btn:hover{transform:translateY(-1px);text-decoration:none}
.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(135deg,var(--primary),#a855f7);color:#fff;border-color:transparent;box-shadow:0 4px 14px var(--primary-soft-border)}
.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),var(--primary));color:#fff;transform:translateY(-1px)}
.btn-outline{background:var(--surface);color:var(--primary);border-color:var(--primary-soft-border)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-hover);border-color:var(--primary-soft-border)}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-danger:hover{filter:brightness(.94);color:#fff}

/* Badge */
.badge{padding:.25rem .7rem;border-radius:999px;font-size:.78rem;font-weight:600;background:var(--primary-soft);color:var(--primary);border:1px solid var(--primary-soft-border)}
.badge-primary{background:var(--primary-soft);color:var(--primary);border-color:var(--primary-soft-border)}

/* Thumbnails */
.video-thumb{width:140px;height:auto;border-radius:var(--radius-sm);display:block;box-shadow:var(--shadow-sm)}
.video-thumb:hover{transform:scale(1.02)}
.thumb-placeholder{display:inline-flex;align-items:center;justify-content:center;min-height:110px;min-width:140px;border-radius:var(--radius-sm);background:var(--surface-muted);color:var(--text-muted);font-size:.9rem}

/* Utilities */
.text-muted{color:var(--text-muted)!important}
.text-secondary{color:var(--text-secondary)!important}
.small{font-size:.82rem;line-height:1.5}
.mt-4{margin-top:1.5rem}
.text-center{text-align:center}

/* Forms */
.field-label{display:block;font-size:.9rem;color:var(--text-secondary);margin-bottom:.4rem}
.field-input{width:100%;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);padding:.7rem .9rem;font-size:.95rem;font-family:inherit;transition:border-color .2s,box-shadow .2s}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.field-input::placeholder{color:var(--text-muted)}
.button{padding:.7rem 1.2rem;border-radius:var(--radius-sm);border:1px solid transparent;background:var(--primary);color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;transition:background .2s,transform .15s}
.button:hover{background:var(--primary-hover);transform:translateY(-1px)}
.button.loading{cursor:progress;opacity:.85}
.button .spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Login */
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(420px,100%);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2.2rem;box-shadow:var(--shadow)}
.card-header{margin-bottom:1.5rem}
.login-card h1{margin:0;font-size:clamp(1.8rem,3vw,2.2rem);text-align:center;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.login-logo{width:130px;height:auto;display:block;margin:0 auto .6rem;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.login-card-description{margin:12px 0 0;color:var(--text-muted);line-height:1.7;font-size:.95rem}
.form-field{display:grid;gap:.5rem;margin-bottom:1.1rem}
.submit-group{margin-top:.5rem}
.login-footer{margin-top:1.5rem;text-align:center;color:var(--text-muted);font-size:.9rem}

/* Alert */
.alert{border-radius:var(--radius-sm);padding:1rem 1.1rem;margin-bottom:1rem;font-size:.92rem;line-height:1.5}
.alert.error{background:var(--danger-soft);border:1px solid var(--danger);color:var(--danger)}

/* Responsive */
@media (max-width:900px){
    .hero-grid{grid-template-columns:1fr}
    .container{padding:1rem .75rem 2.5rem}
    .header{padding:.9rem 1rem;top:.5rem}
}
@media (max-width:640px){
    .card,.hero-section{padding:1.1rem;border-radius:var(--radius)}
    .info-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.8rem}
    .info-card{padding:.9rem}
    table{font-size:.85rem}
    thead th,tbody td{padding:.75rem .7rem}
    .table-responsive{margin:0 -.25rem}
    .video-thumb{width:100px}
    .login-card{padding:1.5rem 1.2rem}
}