:root {
    --bg: #0f172a;
    --panel: #111827;
    --border: #1f2937;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --accent: #38bdf8;
    --accent-strong: #0ea5e9;
    --success: #34d399;
    --error: #f87171;
    --warning: #fbbf24;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: linear-gradient(180deg, #0b1220 0%, var(--bg) 100%);
    color: var(--text);
    min-height: 100vh;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.25rem 3rem;
}

.header {
    margin-bottom: 2rem;
}

.eyebrow {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0 0 0.5rem;
}

h1 {
    margin: 0 0 0.75rem;
    font-size: clamp(2rem, 4vw, 2.75rem);
}

h2 {
    margin: 0 0 1rem;
    font-size: 1.15rem;
}

.lead {
    color: var(--muted);
    max-width: 60ch;
    line-height: 1.6;
    margin: 0;
}

.layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.panel {
    background: rgba(17, 24, 39, 0.92);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.25rem;
}

.ask-form {
    display: grid;
    gap: 0.65rem;
}

label {
    font-size: 0.9rem;
    color: var(--muted);
}

textarea,
input {
    width: 100%;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    border-radius: 10px;
    padding: 0.75rem 0.85rem;
    font: inherit;
}

textarea:focus,
input:focus {
    outline: 2px solid rgba(56, 189, 248, 0.35);
    border-color: var(--accent);
}

button {
    margin-top: 0.5rem;
    border: none;
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font: inherit;
    font-weight: 600;
    color: #031525;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    cursor: pointer;
}

button:disabled {
    opacity: 0.65;
    cursor: wait;
}

.hint {
    margin: 1rem 0 0;
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

.hint a {
    color: var(--accent);
}

.status-box {
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border);
    background: #0b1220;
}

.status-idle p,
.status-working p,
.status-done p,
.status-error p {
    margin: 0;
}

.status-working {
    border-color: rgba(251, 191, 36, 0.35);
}

.status-done {
    border-color: rgba(52, 211, 153, 0.35);
}

.status-error {
    border-color: rgba(248, 113, 113, 0.35);
}

.meta {
    margin-top: 1rem;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.5;
}

.video-wrap {
    margin-top: 1rem;
}

video {
    width: 100%;
    border-radius: 12px;
    background: #000;
}

.video-caption {
    margin: 0.5rem 0 0;
    color: var(--muted);
    font-size: 0.85rem;
}

.error-box {
    margin-top: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.35);
    color: #fecaca;
}

.hidden {
    display: none;
}

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.85em;
}

@media (max-width: 860px) {
    .layout {
        grid-template-columns: 1fr;
    }
}