/* =========================================================================
   IOI SYSTEM — minimalist binary theme (101)
   I=1, O=0, I=1 => 101 => 5
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
    --bg: #f8f9fa;
    --surface: #ffffff;
    --border: #e9ecef;
    --text: #212529;
    --text-secondary: #6c757d;
    --primary: #0a0a0f;
    --accent: #00ff9d;
    --accent-dim: rgba(0, 255, 157, 0.1);
    --danger: #ff3b30;
    --warning: #ff9f0a;
    --success: #34c759;
    --radius: 6px;
    --font: 'Inter', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container { max-width: 800px; margin: 0 auto; padding: 0 20px; }

/* ========== LOGIN ========== */
.login-box {
    max-width: 400px;
    margin: 80px auto;
    text-align: center;
}

.logo {
    margin-bottom: 30px;
}

.logo-ioi {
    font-family: var(--mono);
    font-size: 64px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -4px;
    display: block;
    line-height: 1;
}

.logo-sub {
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 8px;
    display: block;
    margin-top: 4px;
}

.logo-binary {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--accent);
    background: var(--primary);
    display: inline-block;
    padding: 2px 10px;
    border-radius: 2px;
    margin-top: 8px;
    letter-spacing: 4px;
}

.title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.btn-google {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: box-shadow 0.2s;
    cursor: pointer;
}

.btn-google:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.info-text {
    margin-top: 30px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========== ALERTS ========== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
    text-align: left;
}

.alert.error { background: #fff0f0; color: var(--danger); border: 1px solid #ffd7d5; }
.alert.success { background: #f0fff4; color: var(--success); border: 1px solid #d4edda; }
.alert.warn { background: #fffbe6; color: #856404; border: 1px solid #ffeeba; }

/* ========== HEADER ========== */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo-ioi-sm {
    font-family: var(--mono);
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -2px;
}

.logo-sub-sm {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-secondary);
    letter-spacing: 4px;
    margin-top: 4px;
}

nav { display: flex; gap: 10px; }

.btn-nav {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.btn-nav:hover { background: var(--accent-dim); color: var(--primary); }
.btn-nav-out { color: var(--danger); }
.btn-nav-out:hover { background: #fff0f0; }

/* ========== MAIN ========== */
main { padding-bottom: 40px; }

h1 { font-size: 26px; font-weight: 700; margin-bottom: 6px; }

/* ========== TICKET LIST ========== */
.ticket-list { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }

.ticket-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s;
}

.ticket-card:hover { border-color: var(--accent); }

.ticket-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.ticket-id {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-secondary);
}

.ticket-asunto {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.ticket-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========== ESTADOS ========== */
.estado {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.estado-pendiente { background: #fff3cd; color: #856404; }
.estado-en_curso { background: #cce5ff; color: #004085; }
.estado-resuelto { background: #d4edda; color: #155724; }
.estado-cerrado { background: #e9ecef; color: #495057; }

/* ========== TICKET DETAIL ========== */
.ticket-detail {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.ticket-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.ticket-detail h2 {
    font-size: 20px;
    margin-bottom: 16px;
}

.ticket-descripcion {
    font-size: 15px;
    line-height: 1.7;
    color: #333;
    margin-bottom: 20px;
    white-space: pre-wrap;
}

/* ========== FORM ========== */
.ticket-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.field { margin-bottom: 20px; }

.field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.field input[type="text"],
.field textarea,
.field select {
    width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    font-family: var(--font);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    transition: border-color 0.2s;
}

.field input:focus,
.field textarea:focus { outline: none; border-color: var(--primary); }

/* ========== UPLOAD ========== */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--accent);
    background: var(--accent-dim);
}

.upload-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 16px;
}

.preview-item {
    aspect-ratio: 1;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========== BUTTON ========== */
.btn-primary {
    display: inline-block;
    padding: 14px 32px;
    background: var(--primary);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.2s;
}

.btn-primary:hover { opacity: 0.85; }

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state p { margin-bottom: 20px; }

/* ========== IMAGES GRID ========== */
.imagenes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin: 16px 0;
}

.imagen-item {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.imagen-item img { width: 100%; display: block; }

/* ========== STATS (ADMIN) ========== */
.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 20px 0;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-num {
    display: block;
    font-family: var(--mono);
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-num.warning { color: var(--warning); }

/* ========== ADMIN TABLE ========== */
.admin-table-wrap { overflow-x: auto; margin-top: 16px; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.admin-table th,
.admin-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.admin-table tr:hover td { background: #f8f9fa; }

/* ========== ADMIN TICKET INFO ========== */
.admin-ticket-info {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.info-row {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.info-row:last-child { border-bottom: none; }

.estado-form {
    display: flex;
    gap: 10px;
    align-items: center;
    margin: 16px 0;
}

.estado-form select {
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 600px) {
    .login-box { margin: 40px auto; }
    .logo-ioi { font-size: 48px; }
    .stats { grid-template-columns: 1fr; }
    header { flex-direction: column; gap: 12px; text-align: center; }
    .ticket-detail-header { flex-direction: column; gap: 10px; align-items: flex-start; }
    .estado-form { flex-direction: column; }
    .estado-form select { width: 100%; }
    .estado-form button { width: 100%; }
}

@media (max-width: 400px) {
    .logo-ioi { font-size: 36px; }
    .container { padding: 0 12px; }
    nav { flex-wrap: wrap; justify-content: center; }
}

.divider {
  display: flex; align-items: center; text-align: center;
  margin: 24px 0; color: var(--muted); font-size: 13px;
  letter-spacing: 2px;
}
.divider::before, .divider::after {
  content: ""; flex: 1; border-bottom: 1px solid var(--border);
}
.divider span { padding: 0 12px; }

.form-title {
  font-size: 16px; font-weight: 500; margin: 0 0 16px;
  color: var(--foreground); letter-spacing: 1px;
}