/* ==========================================================
   N1NEXUS · Plantilla Maestra — Admin (Nexus Pulse)
   ========================================================== */

:root {
    --obsidian: #fafaf8;
    --obsidian-2: #f2f6f0;
    --obsidian-3: #ffffff;
    --obsidian-4: #eef3ec;
    --glass: rgba(46, 125, 50, 0.05);
    --border: rgba(31, 55, 33, 0.14);
    --border-strong: rgba(31, 55, 33, 0.24);
    --data-line: rgba(46, 125, 50, 0.55);
    --electric: #2E7D32;
    --electric-2: #43A047;
    --amber: #EF6C00;
    --ok: #2e9e63;
    --danger: #d64545;
    --warn: #e08600;
    --text: #1d2a1e;
    --muted: #4d5c50;
    --muted-2: #7c887e;
    --font-display: 'Bebas Neue', 'Impact', sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 20px 50px -24px rgba(30, 60, 30, 0.28);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background: var(--obsidian);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--electric); text-decoration: none; }
code { font-family: var(--font-mono); font-size: 0.85em; color: var(--electric); }
img, video { max-width: 100%; display: block; }

/* ============ LOGIN ============ */
.login-body {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background:
        radial-gradient(700px 400px at 70% 20%, rgba(46, 125, 50, 0.12), transparent 60%),
        var(--obsidian);
    padding: 1.4rem;
}
.login-card {
    width: min(400px, 100%);
    border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--obsidian-2); padding: 2.4rem;
    box-shadow: var(--shadow);
}
.login-logo {
    font-family: var(--font-display); font-size: 1.9rem; letter-spacing: 0.05em;
    text-align: center;
}
.login-logo span { color: var(--electric); }
.login-logo em { font-style: normal; color: var(--amber); }
.login-sub { text-align: center; color: var(--muted); font-size: 0.9rem; margin: 0.2rem 0 1.8rem; }

.login-form { display: grid; gap: 0.9rem; }
.login-form label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.login-form input {
    background: var(--obsidian-3); border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); padding: 0.85rem 1rem; font-size: 1rem;
    transition: border-color .2s, box-shadow .2s;
}
.login-form input:focus { outline: none; border-color: var(--data-line); box-shadow: 0 0 0 3px rgba(46,125,50,0.15); }
.login-error { color: var(--danger); font-size: 0.85rem; }
.login-back { display: block; text-align: center; margin-top: 1.4rem; color: var(--muted); font-size: 0.88rem; }
.login-back:hover { color: var(--text); }

/* ============ BOTONES ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--glass); color: var(--text);
    font-family: var(--font-body); font-weight: 600; font-size: 0.9rem;
    cursor: pointer; transition: border-color .2s, box-shadow .2s, transform .15s;
}
.btn:hover { border-color: var(--data-line); box-shadow: 0 0 0 1px rgba(46,125,50,0.3); transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--electric-2), var(--electric)); border-color: transparent; color: #ffffff; }
.btn-primary:hover { box-shadow: 0 8px 24px -8px rgba(46,125,50,0.5); }
.btn-danger { background: rgba(248,113,113,0.12); border-color: rgba(248,113,113,0.35); color: var(--danger); }
.btn-danger:hover { box-shadow: 0 0 0 1px rgba(248,113,113,0.4); }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.82rem; }

/* ============ LAYOUT ADMIN ============ */
.admin-layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 250px; flex-shrink: 0;
    background: var(--obsidian-2); border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh;
}
.side-logo {
    font-family: var(--font-display); font-size: 1.5rem; letter-spacing: 0.05em;
    padding: 1.2rem 1.4rem; display: block;
}
.side-logo span { color: var(--electric); }
.side-logo em { font-style: normal; color: var(--amber); }

.admin-burger { display: none; }

.side-panel { flex: 1; display: flex; flex-direction: column; overflow-y: auto; }
.side-nav { padding: 0.6rem; display: grid; gap: 0.2rem; }
.side-link {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.65rem 0.9rem; border-radius: var(--radius-sm);
    color: var(--muted); font-size: 0.9rem; font-weight: 500;
    border: 1px solid transparent; transition: all .2s;
}
.side-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.side-link:hover { color: var(--text); background: var(--glass); border-color: var(--border); }
.side-link.active { color: var(--electric); background: rgba(46,125,50,0.08); border-color: rgba(46,125,50,0.25); }
.side-link .count {
    margin-left: auto; font-family: var(--font-mono); font-size: 0.7rem;
    background: var(--obsidian-4); border: 1px solid var(--border);
    border-radius: 99px; padding: 0.15rem 0.5rem;
}
.side-link .count.warn { color: var(--warn); border-color: rgba(251,191,36,0.4); }

.side-actions { padding: 0.8rem; border-top: 1px solid var(--border); display: grid; gap: 0.4rem; }
.side-action {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.65rem 0.9rem; border-radius: var(--radius-sm);
    color: var(--muted); font-size: 0.9rem; transition: all .2s;
}
.side-action svg { width: 18px; height: 18px; }
.side-action:hover { color: var(--text); background: var(--glass); }
.side-action.danger { color: var(--danger); }
.side-action.danger:hover { background: rgba(248,113,113,0.1); }

/* ============ MAIN ============ */
.main { flex: 1; padding: 2rem clamp(1.2rem, 3vw, 3rem) 4rem; min-width: 0; }
.main-head {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; margin-bottom: 1.8rem; flex-wrap: wrap;
}
.main-head h1 { font-family: var(--font-display); font-weight: 400; font-size: 2.2rem; letter-spacing: 0.03em; }
.main-head p { color: var(--muted); font-size: 0.9rem; }

.flash {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 0.9rem 1.2rem; border-radius: var(--radius-sm); margin-bottom: 1.4rem;
    font-size: 0.92rem;
}
.flash-ok { background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.35); color: var(--ok); }
.flash-err { background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.35); color: var(--danger); }
.flash-close { background: none; border: none; color: inherit; font-size: 1.2rem; cursor: pointer; }

/* ============ PANELES ============ */
.panel {
    border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--obsidian-2); margin-bottom: 1.6rem; overflow: hidden;
}
.panel-head {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 1.1rem 1.4rem; border-bottom: 1px solid var(--border);
}
.panel-head h2 { font-size: 1.05rem; }

.grid-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 1.4rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.field input, .field select, .field textarea {
    background: var(--obsidian-3); border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); padding: 0.7rem 0.9rem; font-family: var(--font-body); font-size: 0.92rem;
    transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: var(--data-line); box-shadow: 0 0 0 3px rgba(46,125,50,0.12);
}
.field input[type="file"] { padding: 0.5rem; }
.field.check label { font-family: var(--font-body); text-transform: none; letter-spacing: 0; display: flex; align-items: center; gap: 0.5rem; color: var(--text); font-size: 0.9rem; }
.field.check input { width: auto; }

/* ============ LISTAS ============ */
.list { padding: 0.6rem; display: grid; gap: 0.4rem; }
.list-item {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.8rem; border-radius: var(--radius-sm);
    background: var(--glass); border: 1px solid transparent;
    transition: border-color .2s;
}
.list-item:hover { border-color: var(--border); }
.list-item > img, .list-item > video { width: 64px; height: 64px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.list-info { flex: 1; min-width: 0; display: grid; gap: 0.15rem; }
.list-info b { font-size: 0.95rem; }
.list-info span { color: var(--muted); font-size: 0.85rem; }
.list-info .date { color: var(--muted-2); font-size: 0.78rem; }
.list-actions { display: flex; gap: 0.5rem; align-items: center; flex-shrink: 0; }
.list-actions form { margin: 0; }

.empty { color: var(--muted-2); padding: 1.4rem; text-align: center; font-family: var(--font-mono); font-size: 0.85rem; }

/* ============ STATS ============ */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 1rem; margin-bottom: 1.6rem; }
.stat-card {
    border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--obsidian-2); padding: 1.4rem;
    display: grid; gap: 0.2rem;
    transition: border-color .2s, box-shadow .2s;
}
.stat-card:hover { border-color: var(--data-line); box-shadow: 0 0 0 1px rgba(46,125,50,0.25); }
.stat-card b { font-family: var(--font-display); font-weight: 400; font-size: 2.4rem; letter-spacing: 0.03em; color: var(--electric); }
.stat-card span { color: var(--muted); font-size: 0.85rem; }
.stat-card.stat-warn b { color: var(--warn); }

.shortcut-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.8rem; padding: 1.4rem; }
.shortcut {
    display: flex; align-items: center; gap: 0.7rem;
    padding: 1rem; border-radius: var(--radius-sm);
    background: var(--glass); border: 1px solid var(--border);
    color: var(--text); font-size: 0.9rem; font-weight: 500;
    transition: all .2s;
}
.shortcut span { font-size: 1.3rem; }
.shortcut:hover { border-color: var(--data-line); box-shadow: 0 0 0 1px rgba(46,125,50,0.25); color: var(--electric); }

/* ============ TABLAS / THUMBS / ACCORDION ============ */
.table { width: 100%; border-collapse: collapse; }
.table td { padding: 0.8rem 1.4rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.table td:first-child { color: var(--muted); font-family: var(--font-mono); font-size: 0.8rem; }

.thumb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.8rem; padding: 1.4rem; }
.thumb-item {
    border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden;
    background: var(--obsidian-3); padding-bottom: 0.6rem;
}
.thumb-item img, .thumb-item video { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.thumb-title { display: block; font-size: 0.8rem; padding: 0.5rem 0.6rem 0.2rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.thumb-item form { padding: 0.3rem 0.6rem; }
.thumb-item .btn-sm { width: 100%; }

.accordion { border-bottom: 1px solid var(--border); }
.accordion:last-child { border-bottom: 0; }
.accordion summary {
    cursor: pointer; padding: 1rem 1.4rem; font-weight: 600; font-size: 0.95rem;
    display: flex; align-items: center; gap: 0.6rem; user-select: none;
}
.accordion summary::before { content: '▸'; color: var(--electric); transition: transform .2s; }
.accordion[open] summary::before { transform: rotate(90deg); }
.accordion summary:hover { color: var(--electric); }

.badge {
    font-family: var(--font-mono); font-size: 0.72rem;
    padding: 0.3rem 0.7rem; border-radius: 99px;
}
.badge-warn { background: rgba(251,191,36,0.12); color: var(--warn); border: 1px solid rgba(251,191,36,0.35); }
.badge-ok { background: rgba(52,211,153,0.12); color: var(--ok); border: 1px solid rgba(52,211,153,0.35); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .admin-layout { flex-direction: column; }
    .sidebar {
        width: 100%; height: auto; position: sticky; top: 0; z-index: 50;
        flex-direction: row; align-items: center;
    }
    .side-logo { padding: 0.9rem 1rem; }
    .admin-burger {
        display: flex; flex-direction: column; gap: 5px;
        background: none; border: 1px solid var(--border); border-radius: var(--radius-sm);
        padding: 0.6rem; margin-left: auto; margin-right: 1rem; cursor: pointer;
    }
    .admin-burger span { width: 20px; height: 2px; background: var(--text); transition: transform .25s, opacity .25s; }
    .side-panel {
        position: fixed; top: 56px; left: 0; right: 0; bottom: 0; z-index: 40;
        background: var(--obsidian-2); transform: translateX(-100%);
        transition: transform .3s ease; overflow-y: auto;
    }
    .side-panel.open { transform: translateX(0); }
    .grid-form { grid-template-columns: 1fr; }
}