:root {
    color-scheme: light;
    --bg: #f4f7f9;
    --panel: #ffffff;
    --ink: #1b2733;
    --muted: #647484;
    --line: #dbe3ea;
    --accent: #0d7f75;
    --accent-dark: #075f57;
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

.shell {
    width: min(1080px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0;
}

.login-panel,
.upload-panel,
.video-card,
.empty {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(20, 36, 50, 0.06);
}

.login-panel {
    width: min(420px, 100%);
    margin: 12vh auto 0;
    padding: 28px;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 8px;
    font-size: 30px;
}

h2 {
    margin-bottom: 6px;
    font-size: 19px;
}

p {
    color: var(--muted);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.logout {
    color: var(--accent-dark);
    font-weight: 700;
    text-decoration: none;
}

.form,
.upload-form {
    display: grid;
    gap: 14px;
}

.upload-form {
    grid-template-columns: minmax(180px, 1fr) minmax(220px, 1.4fr) auto;
    align-items: end;
    padding: 18px;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

input {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 11px 12px;
    color: var(--ink);
    font: inherit;
    background: #fff;
}

button {
    border: 0;
    border-radius: 6px;
    padding: 12px 16px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

button:hover {
    background: var(--accent-dark);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.danger {
    background: var(--danger);
    margin-top: 12px;
}

.message {
    border-radius: 6px;
    padding: 12px 14px;
    font-weight: 700;
}

.error {
    background: #fff0ee;
    color: var(--danger);
}

.success {
    background: #e9f8f3;
    color: var(--accent-dark);
}

.upload-progress {
    border-top: 1px solid var(--line);
    padding: 16px 18px 18px;
}

.progress-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-size: 14px;
}

.progress-head strong {
    color: var(--ink);
}

.progress-bar {
    width: 100%;
    height: 12px;
    margin-top: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: #e8eef3;
}

.progress-bar div {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
    transition: width 180ms ease;
}

.upload-progress p {
    margin: 10px 0 0;
    font-size: 14px;
}

.upload-progress.done .progress-bar div {
    background: var(--accent-dark);
}

.upload-progress.done p {
    color: var(--accent-dark);
}

.upload-progress.failed .progress-bar div {
    background: var(--danger);
}

.upload-progress.failed p,
.upload-progress.failed .progress-head strong {
    color: var(--danger);
}

.video-list {
    display: grid;
    gap: 18px;
    margin-top: 20px;
}

.video-card {
    display: grid;
    grid-template-columns: minmax(260px, 420px) 1fr;
    overflow: hidden;
}

video {
    width: 100%;
    height: 100%;
    min-height: 240px;
    background: #111;
    object-fit: contain;
}

.video-body {
    padding: 18px;
}

.copy-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    margin-top: 14px;
}

.empty {
    padding: 32px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 760px) {
    .topbar,
    .upload-form,
    .video-card,
    .copy-row,
    .progress-head {
        grid-template-columns: 1fr;
    }

    .topbar {
        display: grid;
    }

    .progress-head {
        display: grid;
    }

    video {
        min-height: 200px;
    }
}