:root {
    --bg: #f5f7fb;
    --panel: #ffffff;
    --panel-2: #f0f4fb;
    --border: #dbe3f0;
    --text: #1c2331;
    --muted: #6b7688;
    --accent: #1d5fe0;
    --accent-2: #164cb8;
    --accent-soft: #e8f0ff;
    --danger: #d63a46;
    --success: #1f9d5c;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 2px rgba(23,42,84,0.04);
}
.brand {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: .2px;
    color: var(--accent-2);
}
.logout { color: var(--muted); font-size: 14px; }

.wrap { max-width: 980px; margin: 0 auto; padding: 24px 20px 64px; }
.wrap.narrow { max-width: 720px; }

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 22px;
    box-shadow: 0 1px 3px rgba(23,42,84,0.05);
}
.card h1, .card h2 { margin-top: 0; color: var(--text); }

.banner {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 18px;
    font-size: 14px;
}
.banner.success { background: rgba(31,157,92,0.08); border: 1px solid rgba(31,157,92,0.3); color: #0f6b3d; }

form label {
    display: block;
    margin-bottom: 14px;
    font-size: 13px;
    color: var(--muted);
}
form input[type="text"],
form input[type="password"],
form input[type="datetime-local"],
form input[type="file"] {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 9px 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
}
form input[type="text"]:focus,
form input[type="password"]:focus,
form input[type="datetime-local"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.checkbox-row input { width: auto; margin-top: 3px; }

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 640px) {
    .grid-2 { grid-template-columns: 1fr; }
}

button, .btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}
button:hover, .btn:hover { background: var(--accent-2); text-decoration: none; }
.danger-btn {
    background: transparent;
    color: var(--danger);
    border: 1px solid rgba(214,58,70,0.4);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 13px;
    cursor: pointer;
}
.danger-btn:hover { background: rgba(214,58,70,0.08); }

.muted { color: var(--muted); }
.muted.small { font-size: 13px; }
.error { color: var(--danger); }
.success { color: var(--success); }

.shares-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.shares-table th, .shares-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}
.shares-table th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.expired-row { opacity: 0.55; }
.badge {
    display: inline-block;
    background: rgba(214,58,70,0.1);
    color: var(--danger);
    border-radius: 999px;
    padding: 1px 8px;
    font-size: 11px;
    margin-left: 6px;
}

.link-code, .file-name code {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: 12px;
    word-break: break-all;
}
.copy-btn {
    background: var(--panel-2);
    color: var(--accent-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    cursor: pointer;
    margin-left: 6px;
}
.copy-btn:hover { background: var(--accent-soft); }

/* Toggle switch */
.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
    position: absolute; cursor: pointer; inset: 0;
    background: #c7cede; border-radius: 999px; transition: .15s;
}
.switch .slider::before {
    content: ""; position: absolute; height: 16px; width: 16px; left: 3px; bottom: 3px;
    background: #fff; border-radius: 50%; transition: .15s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(18px); }

.expiry-input { font-size: 12px; padding: 4px 6px; }

/* Share page */
.share-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.file-list { list-style: none; padding: 0; margin: 18px 0 0; }
.file-item { padding: 14px 0; border-top: 1px solid var(--border); }
.file-item:first-child { border-top: none; }
.file-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.file-name { font-weight: 500; word-break: break-all; }
.file-actions { display: flex; gap: 14px; white-space: nowrap; }
.link-small { font-size: 13px; }

.video-player {
    width: 100%;
    max-height: 480px;
    background: #0b1220;
    border-radius: 8px;
    margin-top: 8px;
    display: block;
}

.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.auth-card { width: 100%; max-width: 380px; }
.auth-card h1 { color: var(--accent-2); }