/* ============================================
   PORTALE VISITATORI - Stile principale
   Estetica: Industrial-Modern, toni scuri con
   accenti amber/rame per un look da "control room"
   ============================================ */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #181b24;
    --bg-card: #1e2230;
    --bg-card-hover: #252a3a;
    --bg-input: #141720;
    --border: #2a2f40;
    --border-focus: #d4914e;

    --text-primary: #e8e6e1;
    --text-secondary: #8a8d9b;
    --text-muted: #5a5d6b;
    --text-heading: #f4f2ed;

    --accent: #d4914e;
    --accent-hover: #e5a25f;
    --accent-glow: rgba(212, 145, 78, 0.15);

    --success: #4aba7a;
    --success-bg: rgba(74, 186, 122, 0.1);
    --danger: #e05555;
    --danger-bg: rgba(224, 85, 85, 0.1);
    --warning: #e0b555;
    --warning-bg: rgba(224, 181, 85, 0.1);
    --info: #5599e0;
    --info-bg: rgba(85, 153, 224, 0.1);

    --radius: 8px;
    --radius-lg: 14px;
    --shadow: 0 2px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);

    --font-body: 'DM Sans', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --nav-height: 64px;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-hover); }

/* === NAVIGATION === */
.main-nav {
    position: sticky; top: 0; z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    height: var(--nav-height);
}
.nav-inner {
    max-width: 1400px; margin: 0 auto;
    padding: 0 24px; height: 100%;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
    font-size: 1.15rem; font-weight: 700;
    color: var(--text-heading); letter-spacing: -0.02em;
    display: flex; align-items: center; gap: 10px;
}
.brand-icon {
    color: var(--accent); font-size: 1.4rem;
}
.nav-links {
    display: flex; align-items: center; gap: 6px;
}
.nav-link {
    padding: 8px 14px; border-radius: var(--radius);
    font-size: .875rem; font-weight: 500;
    color: var(--text-secondary);
    transition: all .2s;
}
.nav-link:hover {
    color: var(--text-primary); background: var(--bg-card);
}
.nav-link--admin {
    color: var(--accent);
}
.nav-link--logout {
    color: var(--danger);
}
.nav-user {
    display: flex; align-items: center; gap: 12px;
    margin-left: 16px; padding-left: 16px;
    border-left: 1px solid var(--border);
}
.nav-user-name {
    font-size: .8rem; color: var(--text-muted);
    font-family: var(--font-mono);
}
.nav-postazione-badge {
    font-size: .72rem; font-weight: 600;
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 6px;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; top: var(--nav-height);
        left: 0; right: 0; background: var(--bg-secondary);
        flex-direction: column; padding: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open { display: flex; }
    .nav-user { margin-left: 0; padding-left: 0; border-left: none; border-top: 1px solid var(--border); padding-top: 12px; }
}

/* === MAIN CONTENT === */
.main-content {
    max-width: 1400px; margin: 0 auto;
    padding: 32px 24px;
}

/* === CARDS === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all .25s;
}
.card:hover {
    border-color: var(--border-focus);
    box-shadow: var(--shadow);
}
.card-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px; padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.card-title {
    font-size: 1.15rem; font-weight: 600;
    color: var(--text-heading); letter-spacing: -0.01em;
}
.card-subtitle {
    font-size: .8rem; color: var(--text-muted); margin-top: 4px;
}

/* === GRID LAYOUTS === */
.grid-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px; margin-bottom: 32px;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 3px;
}
.stat-card--accent::before { background: var(--accent); }
.stat-card--success::before { background: var(--success); }
.stat-card--warning::before { background: var(--warning); }
.stat-card--danger::before { background: var(--danger); }
.stat-card--info::before { background: var(--info); }

.stat-value {
    font-size: 2.2rem; font-weight: 700;
    color: var(--text-heading);
    font-family: var(--font-mono);
    line-height: 1.1;
}
.stat-label {
    font-size: .8rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.08em;
    margin-top: 8px;
}
.stat-detail {
    font-size: .78rem; color: var(--text-secondary);
    margin-top: 4px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }

@media (max-width: 768px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* === FORMS === */
.form-group {
    margin-bottom: 20px;
}
.form-label {
    display: block; font-size: .8rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: 0.06em;
}
.form-input, .form-select, .form-textarea {
    width: 100%; padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: .95rem;
    transition: all .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-select { cursor: pointer; }
.form-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

/* === BUTTONS === */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: .9rem; font-weight: 600;
    cursor: pointer; transition: all .2s;
    text-align: center; justify-content: center;
}
.btn--primary {
    background: var(--accent); color: #1a1a1a;
    border-color: var(--accent);
}
.btn--primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(212, 145, 78, 0.3);
    color: #1a1a1a;
}
.btn--secondary {
    background: transparent; color: var(--text-primary);
    border-color: var(--border);
}
.btn--secondary:hover { border-color: var(--text-secondary); }
.btn--danger {
    background: var(--danger-bg); color: var(--danger);
    border-color: var(--danger);
}
.btn--danger:hover { background: var(--danger); color: white; }
.btn--success {
    background: var(--success-bg); color: var(--success);
    border-color: var(--success);
}
.btn--success:hover { background: var(--success); color: white; }
.btn--sm { padding: 6px 14px; font-size: .8rem; }
.btn--block { width: 100%; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }

/* === TABLES === */
.table-wrap {
    overflow-x: auto; border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}
table {
    width: 100%; border-collapse: collapse;
    font-size: .88rem;
}
thead {
    background: var(--bg-secondary);
}
th {
    padding: 14px 16px; text-align: left;
    font-weight: 600; font-size: .75rem;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}
tr:hover td { background: var(--bg-card-hover); }
tr:last-child td { border-bottom: none; }

/* === BADGES / STATUS === */
.badge-status {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border-radius: 20px;
    font-size: .75rem; font-weight: 600;
    font-family: var(--font-mono);
}
.badge-status--active {
    background: var(--success-bg); color: var(--success);
}
.badge-status--expired {
    background: var(--danger-bg); color: var(--danger);
}
.badge-status--warning {
    background: var(--warning-bg); color: var(--warning);
}
.badge-status--inside {
    background: var(--info-bg); color: var(--info);
}
.badge-status::before {
    content: ''; width: 6px; height: 6px;
    border-radius: 50%; background: currentColor;
}

/* === SCANNER === */
.scanner-container {
    max-width: 600px; margin: 0 auto;
}
#reader {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border);
}
#reader video { border-radius: var(--radius-lg); }
.scan-result {
    margin-top: 24px; padding: 24px;
    border-radius: var(--radius-lg);
    animation: slideUp .3s ease;
}
.scan-result--ok {
    background: var(--success-bg);
    border: 1px solid var(--success);
}
.scan-result--error {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === QR DISPLAY === */
.qr-display {
    display: flex;
    padding: 32px; background: white;
    border-radius: var(--radius-lg);
    margin: 20px 0;
}
.qr-display canvas, .qr-display img {
    border-radius: 4px;
}
.qr-info {
    text-align: center; margin-top: 16px;
    color: #333;
}
.qr-info .name { font-size: 1.1rem; font-weight: 700; color: #111; }
.qr-info .code { font-family: var(--font-mono); font-size: .8rem; color: #666; margin-top: 4px; }
.qr-info .expiry { font-size: .8rem; color: #999; margin-top: 8px; }

/* === ALERTS === */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: .9rem;
    border: 1px solid;
}
.alert--success { background: var(--success-bg); border-color: var(--success); color: var(--success); }
.alert--danger { background: var(--danger-bg); border-color: var(--danger); color: var(--danger); }
.alert--warning { background: var(--warning-bg); border-color: var(--warning); color: var(--warning); }
.alert--info { background: var(--info-bg); border-color: var(--info); color: var(--info); }

/* === LOGIN PAGE === */
.login-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(212, 145, 78, 0.06) 0%, transparent 60%),
        var(--bg-primary);
}
.login-box {
    width: 100%; max-width: 420px;
    padding: 40px;
}
.login-box .nav-brand {
    font-size: 1.6rem; justify-content: center; margin-bottom: 40px;
}

/* === PAGE HEADERS === */
.page-header {
    display: flex; align-items: flex-end; justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap; gap: 16px;
}
.page-title {
    font-size: 1.8rem; font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.03em;
    line-height: 1.2;
}
.page-subtitle {
    font-size: .9rem; color: var(--text-muted); margin-top: 4px;
}

/* === FILTERS BAR === */
.filters-bar {
    display: flex; gap: 12px; align-items: end;
    flex-wrap: wrap; margin-bottom: 24px;
    padding: 20px; background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}
.filters-bar .form-group { margin-bottom: 0; flex: 1; min-width: 160px; }

/* === PRESENCE TABLE (Admin) === */
.presence-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px; margin-top: 24px;
}
.presence-site {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.presence-site-header {
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.presence-site-name {
    font-weight: 600; color: var(--text-heading);
}
.presence-count {
    font-family: var(--font-mono); font-weight: 700;
    color: var(--accent); font-size: 1.1rem;
}
.presence-list {
    padding: 12px 20px;
}
.presence-person {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border);
}
.presence-person:last-child { border-bottom: none; }
.presence-person-name { font-weight: 500; }
.presence-person-company { font-size: .8rem; color: var(--text-muted); }
.presence-person-time { font-size: .78rem; color: var(--text-muted); font-family: var(--font-mono); }

/* === PRINT === */
.print-only { display: none; }
@media print {
    .main-nav, .main-footer, .btn, .filters-bar, .no-print { display: none !important; }
    .print-only { display: block; }
    body { background: white; color: #333; }
    .card { border: 1px solid #ddd; box-shadow: none; }
    table th { background: #f5f5f5; }
}

/* === FOOTER === */
.main-footer {
    text-align: center; padding: 32px;
    font-size: .78rem; color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: 48px;
}

/* === ANIMATIONS === */
.fade-in {
    animation: fadeIn .4s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === MODAL === */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6); z-index: 200;
    display: none; align-items: center; justify-content: center;
    backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 600px; width: 90%;
    max-height: 80vh; overflow-y: auto;
    box-shadow: var(--shadow-lg);
}
.modal-title {
    font-size: 1.2rem; font-weight: 600;
    color: var(--text-heading); margin-bottom: 20px;
}
.modal-actions {
    display: flex; gap: 12px; justify-content: flex-end;
    margin-top: 24px; padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* === TABS === */
.tabs {
    display: flex; gap: 4px; margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.tab {
    padding: 12px 20px; cursor: pointer;
    font-weight: 500; color: var(--text-muted);
    border-bottom: 2px solid transparent;
    transition: all .2s;
    background: none; border-top: none; border-left: none; border-right: none;
    font-family: var(--font-body); font-size: .9rem;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .3s ease; }

/* === EMPTY STATE === */
.empty-state {
    text-align: center; padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state-icon {
    font-size: 3rem; margin-bottom: 16px; opacity: .5;
}
.empty-state-text {
    font-size: 1rem;
}