@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,700&family=Source+Sans+3:wght@400;500;600;700&display=swap');

:root {
    --ink: #1f2430;
    --muted: #667085;
    --paper: #f4f5f7;
    --panel: #ffffff;
    --line: #e4e7ec;
    --accent: #3b5b8a;
    --accent-mid: #4a6fa5;
    --accent-dark: #2a456c;
    --accent-soft: #eaf0f8;
    --brand: #2d6a4f;
    --brand-soft: #eaf5ef;
    --coral: #c45c4a;
    --sand: #d4a574;
    --sand-soft: rgba(212, 165, 116, 0.16);
    --shadow: 0 12px 32px rgba(31, 36, 48, 0.07);
    --shadow-lg: 0 20px 44px rgba(31, 36, 48, 0.1);
    --radius: 18px;
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);

    /* alias lama agar komponen tetap kompatibel */
    --teal: var(--accent);
    --teal-mid: var(--accent-mid);
    --teal-dark: var(--accent-dark);
    --teal-soft: var(--accent-soft);
    --gold: var(--sand);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font-body);
    color: var(--ink);
    background-color: var(--paper);
    background-image:
        radial-gradient(ellipse 60% 40% at 0% 0%, rgba(59, 91, 138, 0.08), transparent 55%),
        radial-gradient(ellipse 45% 35% at 100% 0%, var(--sand-soft), transparent 50%),
        linear-gradient(180deg, #eef1f5 0%, var(--paper) 42%, #eceff3 100%);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--accent-dark); }

.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 20;
    backdrop-filter: blur(14px) saturate(1.15);
    background: rgba(255, 255, 255, 0.86);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 22px rgba(31, 36, 48, 0.04);
}
.site-header::after {
    content: '';
    display: block; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--sand), transparent 80%);
}
.nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.85rem 0; gap: 1rem;
}
.brand {
    display: flex; align-items: center; gap: 0.8rem; color: inherit;
    transition: transform .25s var(--ease);
}
.brand:hover { transform: translateY(-1px); color: inherit; }
.brand-logo {
    width: 52px; height: 52px; object-fit: contain;
    border-radius: 12px; flex-shrink: 0; padding: 4px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: 0 4px 12px rgba(31, 36, 48, 0.08);
}
.brand strong {
    display: block; font-family: var(--font-display); font-size: 1.05rem;
    letter-spacing: -0.01em; color: var(--ink);
}
.brand small { color: var(--muted); font-weight: 600; }
.nav-links { display: flex; gap: 0.35rem; flex-wrap: wrap; align-items: center; }
.nav-links a, .nav-links span {
    color: var(--muted); font-weight: 600; font-size: 0.93rem;
    padding: 0.45rem 0.8rem; border-radius: 999px;
    transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-links a.active, .nav-links a:hover {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

/* Hero */
.hero {
    display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2rem;
    align-items: center; padding: 3.5rem 0 2.5rem;
    animation: riseIn .7s var(--ease) both;
}
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.15rem, 4vw, 3.25rem);
    line-height: 1.12; margin: 0 0 1rem;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.hero p { color: var(--muted); font-size: 1.08rem; line-height: 1.75; margin: 0 0 1.5rem; }
.hero-visual {
    min-height: 320px; border-radius: 28px; position: relative; overflow: hidden;
    background:
        radial-gradient(circle at 88% 12%, rgba(212, 165, 116, 0.35), transparent 34%),
        radial-gradient(circle at 12% 88%, rgba(255,255,255,0.1), transparent 40%),
        linear-gradient(155deg, #3b5b8a 0%, #334e73 48%, #243652 100%);
    box-shadow: var(--shadow-lg); color: white; padding: 2.2rem;
    animation: riseIn .8s .08s var(--ease) both;
}
.hero-visual::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(circle at 70% 30%, rgba(255,255,255,0.12), transparent 28%),
        repeating-linear-gradient(
            -18deg,
            transparent,
            transparent 18px,
            rgba(255,255,255,0.03) 18px,
            rgba(255,255,255,0.03) 19px
        );
    pointer-events: none;
}
.hero-visual::after {
    content: '';
    position: absolute; width: 180px; height: 180px; right: -40px; bottom: -50px;
    border-radius: 50%;
    border: 28px solid rgba(255,255,255,0.08);
    animation: floatSoft 7s ease-in-out infinite;
}
.hero-visual h2, .hero-visual p { position: relative; z-index: 1; }
.hero-visual h2 {
    font-family: var(--font-display); margin: 0 0 0.85rem; font-size: 1.85rem;
}
.hero-visual p { margin: 0; opacity: 0.94; line-height: 1.65; max-width: 32ch; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
    border: none; border-radius: 999px; padding: 0.82rem 1.35rem;
    font-weight: 700; cursor: pointer; font-family: inherit;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
    background: linear-gradient(180deg, var(--accent-mid), var(--accent));
    color: white;
    box-shadow: 0 8px 20px rgba(59, 91, 138, 0.28);
}
.btn-primary:hover {
    background: linear-gradient(180deg, #5579ad, var(--accent-dark));
    color: white; transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(59, 91, 138, 0.32);
}
.btn-secondary {
    background: #fff; color: var(--ink);
    border: 1px solid var(--line);
    box-shadow: 0 4px 12px rgba(31, 36, 48, 0.04);
}
.btn-secondary:hover {
    border-color: #c5cedd; color: var(--accent-dark);
    transform: translateY(-2px); background: #fff;
}
.btn-danger {
    background: linear-gradient(180deg, #d46a58, var(--coral));
    color: white; box-shadow: 0 6px 16px rgba(196, 92, 74, 0.22);
}
.btn-danger:hover { filter: brightness(1.05); color: white; }
.btn-sm { padding: 0.45rem 0.85rem; font-size: 0.88rem; }
.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.panel, .card, .auth-card, .stat-card, .table-wrap, .chat-shell {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.page { padding: 1.75rem 0 3rem; animation: riseIn .55s var(--ease) both; }
.page-title {
    margin: 0 0 0.35rem; font-family: var(--font-display); font-size: 2rem;
    letter-spacing: -0.02em; color: var(--ink);
}
.page-sub { margin: 0 0 1.5rem; color: var(--muted); }

.grid-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem;
}
.stat-card {
    padding: 1.25rem 1.3rem; position: relative; overflow: hidden;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.stat-card::before {
    content: '';
    position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    background: linear-gradient(180deg, var(--accent), var(--sand));
    border-radius: 4px 0 0 4px;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.stat-card span { color: var(--muted); font-size: 0.92rem; font-weight: 600; }
.stat-card strong {
    display: block; margin-top: 0.45rem;
    font-family: var(--font-display); font-size: 2.05rem; color: var(--accent-dark);
}

.layout-admin { display: grid; grid-template-columns: 240px 1fr; gap: 1.25rem; }
.sidebar {
    padding: 1.1rem; height: fit-content; position: sticky; top: 90px;
    background: linear-gradient(180deg, #f8f9fb, var(--panel));
}
.sidebar h3 {
    margin: 0 0 1rem; font-family: var(--font-display); color: var(--ink);
    font-size: 1.2rem;
}
.sidebar a {
    display: block; padding: 0.72rem 0.9rem; border-radius: 12px;
    color: var(--muted); font-weight: 600; margin-bottom: 0.28rem;
    transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.sidebar a:hover { background: var(--accent-soft); color: var(--accent-dark); transform: translateX(3px); }
.sidebar a.active {
    background: var(--accent-soft);
    color: var(--accent-dark);
    box-shadow: inset 3px 0 0 var(--accent);
}

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 0.95rem 1.05rem; border-bottom: 1px solid var(--line);
    text-align: left; vertical-align: top;
}
th {
    background: #f7f8fa;
    color: var(--muted); font-size: 0.84rem; letter-spacing: .04em;
    text-transform: uppercase; font-weight: 700;
}
tr { transition: background .15s ease; }
tr:hover td { background: #f8f9fb; }
tr:last-child td { border-bottom: none; }

.form-grid { display: grid; gap: 1rem; }
.form-grid.two { grid-template-columns: 1fr 1fr; }
label { display: block; font-weight: 600; margin-bottom: 0.35rem; color: var(--ink); }
input, select, textarea {
    width: 100%; padding: 0.82rem 1rem; border-radius: 12px;
    border: 1px solid var(--line); background: #fafbfc; font: inherit;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
input:hover, select:hover, textarea:hover { border-color: #cfd6e2; }
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(59, 91, 138, 0.12);
    background: #fff;
}
textarea { min-height: 120px; resize: vertical; }
.form-actions { display: flex; gap: 0.75rem; margin-top: 0.5rem; flex-wrap: wrap; }

.alert {
    padding: 0.95rem 1.1rem; border-radius: 14px; margin-bottom: 1rem; font-weight: 600;
    border: 1px solid transparent; animation: riseIn .4s var(--ease) both;
}
.alert-success { background: #eef8f1; color: #1f6b43; border-color: #c8e6d2; }
.alert-error { background: #fdecea; color: #9b2c20; border-color: #f5c4bc; }
.alert-info { background: #eef3fb; color: #2a456c; border-color: #c9d7ec; }

.auth-wrap {
    min-height: calc(100vh - 90px); display: grid; place-items: center; padding: 2rem 1rem;
    animation: riseIn .55s var(--ease) both;
}
.auth-card {
    width: min(440px, 100%); padding: 2.15rem;
    position: relative; overflow: hidden;
}
.auth-card::before {
    content: '';
    position: absolute; left: 0; right: 0; top: 0; height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--sand));
}
.auth-card h1 {
    font-family: var(--font-display); margin: 0.35rem 0 0.4rem;
    font-size: 1.9rem; color: var(--ink);
}
.auth-card p { color: var(--muted); margin: 0 0 1.4rem; }

.chat-shell {
    display: grid; grid-template-rows: auto 1fr auto; min-height: 70vh; overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.chat-top {
    padding: 1rem 1.25rem; border-bottom: 1px solid var(--line);
    display: flex; justify-content: space-between; gap: 1rem; align-items: center;
    background: linear-gradient(180deg, #f8f9fb, #fff);
}
.chat-top h2 { margin: 0; font-family: var(--font-display); font-size: 1.35rem; color: var(--ink); }
.chat-messages {
    padding: 1.25rem; overflow-y: auto; display: flex; flex-direction: column; gap: 0.9rem;
    background:
        radial-gradient(circle at 12% 0%, rgba(59, 91, 138, 0.05), transparent 42%),
        linear-gradient(180deg, #f5f7fa, #fbfcfd 40%);
}
.bubble {
    max-width: min(75%, 560px); padding: 0.95rem 1.1rem; border-radius: 18px;
    line-height: 1.58; white-space: pre-wrap;
    animation: bubbleIn .35s var(--ease) both;
    box-shadow: 0 4px 14px rgba(31, 36, 48, 0.06);
}
.bubble.user {
    align-self: flex-end;
    background: linear-gradient(160deg, var(--accent-mid), var(--accent-dark));
    color: white; border-bottom-right-radius: 6px;
}
.bubble.bot {
    align-self: flex-start; background: white; border: 1px solid var(--line);
    border-bottom-left-radius: 6px;
}
.bubble.meta { font-size: 0.78rem; color: var(--muted); margin-top: 0.4rem; opacity: 0.9; }
.bubble.user .bubble.meta { color: rgba(255,255,255,0.78); }
.chat-input {
    display: grid; grid-template-columns: 1fr auto; gap: 0.75rem;
    padding: 1rem 1.15rem; border-top: 1px solid var(--line);
    background: linear-gradient(180deg, #fff, #f7f8fa);
    transition: box-shadow .2s var(--ease);
}
.chat-input.is-focus {
    box-shadow: inset 0 3px 0 0 rgba(59, 91, 138, 0.35);
}
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0 0; }
.chip {
    border: 1px solid var(--line); background: white; border-radius: 999px;
    padding: 0.42rem 0.85rem; cursor: pointer; font: inherit; color: var(--muted);
    font-size: 0.9rem; font-weight: 600;
    transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}
.chip:hover {
    border-color: #b7c5db; color: var(--accent-dark);
    background: var(--accent-soft); transform: translateY(-1px);
}

.feature-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.5rem 0 2.5rem;
}
.feature {
    padding: 1.45rem 1.4rem; position: relative; overflow: hidden;
    transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
    animation: riseIn .65s var(--ease) both;
}
.feature:nth-child(2) { animation-delay: .08s; }
.feature:nth-child(3) { animation-delay: .16s; }
.feature:nth-child(4) { animation-delay: .08s; }
.feature:nth-child(5) { animation-delay: .16s; }
.feature:nth-child(6) { animation-delay: .24s; }
.feature::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--sand));
    opacity: 0; transition: opacity .25s var(--ease);
}
.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cfd6e2;
}
.feature:hover::after { opacity: 1; }
.feature h3 { margin: 0 0 0.55rem; font-family: var(--font-display); color: var(--ink); }
.feature p { margin: 0; color: var(--muted); line-height: 1.65; }

.site-footer {
    border-top: 1px solid var(--line); color: var(--muted);
    padding: 1.6rem 0 2.1rem; margin-top: 1rem;
    background: linear-gradient(180deg, transparent, rgba(59, 91, 138, 0.03));
    font-weight: 500;
}

.report-chart {
    display: flex; align-items: flex-end; justify-content: space-around;
    gap: 0.5rem; height: 180px;
    border-left: 2px solid #98a2b3; border-bottom: 2px solid #98a2b3;
    padding: 0 0.5rem;
}
.report-chart-group {
    display: flex; flex-direction: column; align-items: center;
    justify-content: flex-end; height: 100%; flex: 1; min-width: 0;
}
.report-bars { display: flex; align-items: flex-end; gap: 4px; height: 100%; }
.report-bar {
    width: 14px; border-radius: 4px 4px 0 0; min-height: 4px;
}
.report-bar.q { background: linear-gradient(180deg, var(--accent-mid), var(--accent-dark)); }
.report-bar.u { background: linear-gradient(180deg, #e0b98a, var(--sand)); }
.report-chart-group span {
    margin-top: 0.4rem; font-size: 0.78rem; color: var(--muted); font-weight: 700;
}
.report-legend {
    display: flex; gap: 1rem; justify-content: center; margin-top: 0.85rem;
    color: var(--muted); font-size: 0.9rem; font-weight: 600;
}
.report-legend span::before {
    content: ''; display: inline-block; width: 12px; height: 12px;
    margin-right: 0.4rem; border-radius: 3px; vertical-align: -1px;
}
.report-legend .lq::before { background: var(--accent); }
.report-legend .lu::before { background: var(--sand); }

.panel[style*="padding"] {
    transition: box-shadow .25s var(--ease);
}

@keyframes riseIn {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes bubbleIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes floatSoft {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 900px) {
    .hero, .layout-admin, .grid-stats, .feature-grid, .form-grid.two { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .brand strong { font-size: 0.95rem; }
    .nav-links a, .nav-links span { padding: 0.35rem 0.55rem; font-size: 0.86rem; }
    .hero { padding-top: 2.2rem; }
    .hero-visual { min-height: 240px; }
}