:root {
    --bg: #0b0f14;
    --panel: #121821;
    --text: #e7edf3;
    --muted: #94a3b8;
    --primary: #1db954;
    --primary-600: #19a54b;
    --danger: #ef4444;
    --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.5;
}

.app-header, .app-footer {
    max-width: 860px;
    margin: 0 auto;
    padding: 24px 16px;
}

.app-header h1 {
    margin: 0 0 8px 0;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.app-header p {
    margin: 0;
    color: var(--muted);
}

.app-main {
    max-width: 860px;
    margin: 0 auto;
    padding: 8px 16px 32px 16px;
}

.player-form {
    background: var(--panel);
    border: 1px solid rgba(255,255,255,0.06);
    padding: 16px;
    border-radius: var(--radius);
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.label { font-weight: 600; }

.input {
    width: 100%;
    padding: 12px 14px;
    background: #0f1520;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px;
    color: var(--text);
}

.input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29,185,84,0.15);
}

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

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

.button {
    appearance: none;
    border: 0;
    background: var(--primary);
    color: #03230f;
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
}

.button:hover { background: var(--primary-600); }

.button-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.1);
}

.player-section { margin-top: 16px; }

.player-container iframe {
    width: 100%;
    height: 352px;
    border: 0;
    border-radius: var(--radius);
}

.error {
    display: none;
    background: rgba(239, 68, 68, 0.15);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.error[aria-hidden="false"] { display: block; }