:root {
    --bg: #f6f8fc;
    --surface: #ffffff;
    --surface-2: #eef3fb;
    --primary: #1f7aec;
    --primary-soft: #eaf3ff;
    --text: #0f172a;
    --muted: #5b6477;
    --line: #dce4f0;
    --danger: #dc2626;
    --success: #047857;
    --shadow: 0 18px 55px rgba(15, 23, 42, 0.08);
    --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', system-ui, sans-serif;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
    color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { width: 100%; display: block; }
main { min-height: calc(100vh - 160px); }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(820px, calc(100% - 32px)); }
.section { padding: 42px 0 70px; }
.muted-section { background: rgba(255,255,255,0.45); }
.card {
    background: var(--surface);
    border: 1px solid rgba(226,232,240,0.95);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hidden { display: none !important; }
.full-span { grid-column: 1 / -1; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(14px);
    background: rgba(255,255,255,0.82);
    border-bottom: 1px solid rgba(229,231,235,0.8);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand strong { display: block; font-size: 1rem; }
.brand small { color: var(--muted); }
.brand-mark {
    width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 16px; background: linear-gradient(135deg, var(--primary), #7c3aed); color: white; font-weight: 800;
    box-shadow: 0 12px 24px rgba(31,122,236,.25);
}
.nav { display: flex; flex-wrap: wrap; gap: 12px; }
.nav a {
    padding: 10px 14px; border-radius: 999px; color: var(--muted); font-weight: 600;
}
.nav a.active, .nav a:hover { background: var(--primary-soft); color: var(--primary); }
.hero { padding: 60px 0 36px; }
.hero-grid {
    display: grid; grid-template-columns: 1.35fr .85fr; gap: 28px; align-items: stretch;
}
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em;
    color: var(--primary); background: var(--primary-soft); padding: 8px 12px; border-radius: 999px; font-weight: 700;
}
.hero h1, .section h1, .section h2 { margin: 16px 0 14px; line-height: 1.08; font-size: clamp(2.2rem, 5vw, 4rem); }
.section h1 { font-size: clamp(2rem, 4vw, 3rem); }
.section h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
.hero p, .prose-card p, .info-card p, .contact-card p, .empty-state p, .login-card p, .help-text { color: var(--muted); line-height: 1.7; }
.hero-actions, .filter-actions, .admin-actions, .footer-links, .chip-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 20px; border-radius: 16px;
    border: 1px solid transparent; font-weight: 700; cursor: pointer; transition: .2s ease; font-size: .95rem;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--text); }
.btn-danger { background: rgba(220,38,38,.08); color: var(--danger); border-color: rgba(220,38,38,.14); }
.btn-full { width: 100%; }
.stats-card {
    padding: 26px; background: linear-gradient(180deg, #fff 0%, #f8fbff 100%); border: 1px solid #e8eefc;
    border-radius: 28px; box-shadow: var(--shadow); display: grid; gap: 16px;
}
.two-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat-item {
    padding: 18px 20px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface);
}
.stat-item strong { display: block; font-size: 2rem; margin-bottom: 6px; }
.stat-item span { color: var(--muted); }
.stat-item.highlight { border-color: rgba(31,122,236,.18); background: var(--primary-soft); }
.section-heading { margin-bottom: 24px; }
.section-heading.between { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.steps-grid, .listing-grid, .admin-grid, .admin-summary, .grid-2, .contact-card, .admin-tools-grid {
    display: grid; gap: 18px;
}
.steps-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.step-card { padding: 24px; }
.step-card span {
    width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 14px; background: var(--primary-soft); color: var(--primary); font-weight: 800;
}
.step-card h3 { margin: 16px 0 10px; }
.step-card p { color: var(--muted); line-height: 1.65; }
.listing-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.listing-card { overflow: hidden; }
.listing-image-wrap { position: relative; aspect-ratio: 4 / 3; background: var(--surface-2); }
.listing-image-wrap img { height: 100%; object-fit: cover; }
.badge {
    position: absolute; left: 16px; top: 16px; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.92);
    font-size: .82rem; font-weight: 800;
}
.listing-content { padding: 20px; }
.listing-content h3 { margin: 10px 0 10px; font-size: 1.25rem; }
.listing-content p { color: var(--muted); line-height: 1.65; }
.listing-meta, .detail-list {
    display: flex; flex-wrap: wrap; gap: 10px 16px; padding: 0; margin: 0; list-style: none;
}
.listing-meta { color: var(--muted); font-size: .9rem; }
.detail-list { margin-top: 16px; color: #374151; }
.chip {
    background: #f3f4f6; color: #374151; padding: 8px 12px; border-radius: 999px; font-size: .82rem; font-weight: 700;
}
.thumb-grid {
    display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-top: 18px;
}
.thumb-link, .preview-item {
    display: block; border-radius: 16px; overflow: hidden; background: #f4f7fb; border: 1px solid var(--line);
}
.thumb-link img, .preview-item img {
    aspect-ratio: 1/1; object-fit: cover; height: 100%;
}
.filter-bar, .form-card, .info-card, .login-card, .prose-card, .contact-card { padding: 24px; }
.filter-bar {
    display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 16px; align-items: end;
}
.field { display: grid; gap: 8px; }
.field label { font-weight: 700; font-size: .95rem; }
.field input, .field select, .field textarea,
.user-password-form input {
    width: 100%; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); background: #fff; outline: none;
    font: inherit; transition: .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus,
.user-password-form input:focus { border-color: rgba(31,122,236,.55); box-shadow: 0 0 0 4px rgba(31,122,236,.12); }
.form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; align-items: start; }
.listing-form { display: grid; gap: 22px; }
.form-section { display: grid; gap: 16px; }
.form-section h4 { margin: 0; font-size: 1rem; }
.grid-2, .admin-summary { grid-template-columns: repeat(2, minmax(0,1fr)); }
.checkbox-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.checkbox { display: flex; align-items: center; gap: 10px; font-weight: 600; color: #374151; }
.checkbox input { width: 18px; height: 18px; }
.timeline-list { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.8; }
.alert {
    margin: 18px 0 0; padding: 16px 18px; border-radius: 18px; border: 1px solid transparent;
}
.alert-success { background: rgba(4,120,87,.08); color: var(--success); border-color: rgba(4,120,87,.16); }
.alert-error { background: rgba(220,38,38,.08); color: #991b1b; border-color: rgba(220,38,38,.14); }
.alert ul { margin: 0; padding-left: 18px; }
.empty-state { padding: 34px; text-align: center; }
.site-footer { border-top: 1px solid rgba(229,231,235,0.8); background: rgba(255,255,255,.82); }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0; }
.footer-wrap p { margin: 8px 0 0; color: var(--muted); }
.text-link { color: var(--primary); font-weight: 700; }
.mt-24 { margin-top: 24px; }
.admin-summary-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.summary-box { padding: 22px; text-align: center; }
.summary-box strong { display: block; font-size: 2rem; margin-bottom: 8px; }
.admin-grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.admin-column { padding: 20px; }
.admin-column h2, .form-card h2 { margin-top: 0; font-size: 1.2rem; }
.admin-item {
    display: flex; justify-content: space-between; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line);
}
.admin-item:last-child { border-bottom: 0; }
.admin-item p, .user-card p { margin: 6px 0 0; color: var(--muted); }
.admin-tools-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.compact-form { gap: 16px; }
.users-list { display: grid; gap: 14px; }
.user-card {
    display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px; border: 1px solid var(--line);
    border-radius: 18px; background: #fbfdff;
}
.user-password-form {
    display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: center;
}
.single-column { grid-template-columns: 1fr; }
.contact-info-list { display: grid; gap: 14px; }
.contact-info-item {
    display: flex; justify-content: space-between; gap: 14px; padding: 14px 16px; border-radius: 18px; background: #fbfdff; border: 1px solid var(--line);
}
.selected-count { font-weight: 700; color: var(--muted); }
.preview-grid { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
.preview-caption { padding: 10px 12px; font-size: .82rem; color: var(--muted); }
.upload-box {
    padding: 16px; border: 1px solid var(--line); background: #f9fbff; border-radius: 18px;
}
.upload-progress {
    width: 100%; height: 14px; background: #e7eefb; border-radius: 999px; overflow: hidden;
}
.upload-progress span {
    display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--primary), #61a4ff); transition: width .2s ease;
}
.upload-text { margin-top: 10px; color: var(--muted); font-weight: 600; }
@media (max-width: 1024px) {
    .hero-grid, .steps-grid, .listing-grid, .admin-grid-3, .form-layout, .filter-bar, .admin-tools-grid, .thumb-grid, .preview-grid { grid-template-columns: 1fr; }
    .two-stats, .admin-summary-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
    .nav-wrap, .footer-wrap, .section-heading.between, .user-card, .contact-info-item { flex-direction: column; align-items: start; }
    .grid-2, .admin-summary, .admin-summary-3, .user-password-form, .two-stats { grid-template-columns: 1fr; }
    .container { width: min(100% - 20px, 1180px); }
    .hero { padding-top: 32px; }
}

.listing-card-link {
    color: inherit;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.listing-card-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.09);
    border-color: rgba(31,122,236,.22);
}
.inline-link { display: inline-flex; margin-top: 16px; }
.admin-item-link {
    color: inherit;
    text-decoration: none;
}
.admin-item-link:hover { color: var(--primary); }
.stack-actions {
    display: grid;
    gap: 8px;
    min-width: 150px;
}
.stack-actions form,
.detail-action-row form { margin: 0; }
.detail-layout {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 24px;
    align-items: start;
}
.admin-detail-layout {
    grid-template-columns: .9fr 1.1fr;
}
.detail-gallery-card,
.detail-info-card {
    padding: 24px;
}
.detail-main-image-wrap {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: #f8fbff;
}
.detail-main-image {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}
.detail-thumb-grid {
    margin-top: 16px;
}
.detail-thumb-button {
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    padding: 0;
    cursor: pointer;
}
.detail-thumb-button.is-active {
    border-color: rgba(31,122,236,.45);
    box-shadow: 0 0 0 3px rgba(31,122,236,.12);
}
.detail-thumb-button img {
    width: 100%;
    display: block;
    aspect-ratio: 1/1;
    object-fit: cover;
}
.detail-topline {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}
.chip-strong {
    background: rgba(31,122,236,.1);
    color: var(--primary);
}
.detail-description {
    margin: 0 0 22px;
    color: #334155;
    line-height: 1.75;
}
.detail-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 22px;
}
.big-list li {
    padding: 6px 0;
}
.detail-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}
.muted-note {
    color: var(--muted);
    font-size: .92rem;
}
.checkbox-field-group {
    align-self: end;
}
@media (max-width: 1024px) {
    .detail-layout,
    .admin-detail-layout,
    .detail-columns {
        grid-template-columns: 1fr;
    }
}