:root {
    --bg: #0f172a;
    --panel: #111827;
    --panel-2: #1f2937;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --primary: #3b82f6;
    --danger: #ef4444;
    --ok: #10b981;
    --border: #374151;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, #0b1020, var(--bg));
    color: var(--text);
    min-height: 100vh;
}

.container {
    width: min(900px, 92%);
    margin: 3rem auto;
}

.card {
    background: rgba(17, 24, 39, 0.95);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.4rem;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

h1 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--muted);
    margin-top: 0;
}

.video-form {
    display: grid;
    gap: 0.7rem;
    margin-top: 1.2rem;
}

label {
    font-weight: 600;
}

input[type="url"],
input[readonly],
textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 10px;
    padding: 0.72rem;
    font-size: 0.98rem;
}

textarea {
    resize: vertical;
}

button {
    border: none;
    border-radius: 10px;
    padding: 0.7rem 0.95rem;
    cursor: pointer;
    color: white;
    background: var(--primary);
    font-weight: 600;
}

button:hover {
    filter: brightness(1.06);
}

.alert {
    border-radius: 10px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.45);
    color: #fecaca;
}

.result-box {
    margin-top: 1.4rem;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.code-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.6rem;
    align-items: start;
}

.copy-btn {
    min-width: 96px;
}

.helper {
    color: var(--muted);
}

a {
    color: #93c5fd;
}

.watch-container .card {
    overflow: hidden;
}

.video-wrapper {
    position: relative;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.38);
    width: 100%;
}

.video-wrapper iframe {
    display: block;
    width: 100%;
    height: 420px;
    border: 0;
}

.meta {
    margin-top: 1rem;
    display: grid;
    gap: 0.2rem;
    color: var(--muted);
}

@media (max-width: 700px) {
    .video-wrapper iframe {
        min-height: 220px;
    }
}

/* Embed mode: only player, no outer page chrome */
body.embed-mode {
    margin: 0;
    padding: 0;
    background: #000;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.embed-only-player {
    width: 100%;
    max-width: 100%;
}

body.embed-mode .video-wrapper {
    width: 100%;
    max-width: min(100vw, 1200px);
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

body.embed-mode .video-wrapper iframe {
    width: 100%;
    height: 420px;
}

.embed-error {
    color: #fff;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    width: 100%;
    padding: 1rem;
}