:root {
    --ink: #172026;
    --muted: #5f6b73;
    --line: #dfe7eb;
    --panel: #ffffff;
    --soft: #f5f8f9;
    --brand: #126a73;
    --brand-dark: #0c454b;
    --accent: #c88719;
    --danger: #b3261e;
    --shadow: 0 16px 44px rgba(23, 32, 38, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--soft);
    font: 16px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }

input, textarea, select, button {
    font: inherit;
}

input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.75rem 0.85rem;
    color: var(--ink);
    background: #fff;
}

textarea { resize: vertical; }

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.85rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
}

.site-header,
.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.1rem 1.25rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(245, 248, 249, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(223, 231, 235, 0.7);
}

.site-footer {
    margin-top: 3rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.brand-mark,
.admin-logo {
    color: var(--ink);
    font-weight: 800;
    letter-spacing: 0;
}

.brand-mark span { color: var(--brand); }

.site-nav {
    display: flex;
    gap: 1rem;
    font-weight: 700;
}

.hero,
.page-intro,
.product-hero,
.content-band,
.article-layout {
    max-width: 1180px;
    margin: 0 auto;
    padding: 2rem 1.25rem;
}

.hero,
.product-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
    align-items: stretch;
    gap: 1.4rem;
    padding-top: 3rem;
}

.hero-copy,
.page-intro,
.product-hero > div:first-child {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: clamp(1.4rem, 4vw, 3rem);
    box-shadow: var(--shadow);
}

.hero h1,
.page-intro h1,
.product-hero h1 {
    max-width: 850px;
    margin: 0.25rem 0 1rem;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.hero p,
.page-intro p,
.product-hero p {
    max-width: 760px;
    color: var(--muted);
    font-size: 1.08rem;
}

.eyebrow {
    display: inline-block;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
}

.search-bar {
    display: flex;
    gap: 0.65rem;
    max-width: 650px;
    margin-top: 1.3rem;
}

.button,
.search-bar button,
button.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.65rem;
    border: 1px solid var(--brand);
    border-radius: 6px;
    padding: 0.7rem 1rem;
    color: #fff;
    background: var(--brand);
    cursor: pointer;
    font-weight: 800;
}

.button:hover,
.search-bar button:hover {
    color: #fff;
    background: var(--brand-dark);
}

.button-ghost {
    color: var(--brand);
    background: #fff;
}

.button-ghost:hover {
    color: #fff;
}

.button.danger,
.notice.danger {
    border-color: var(--danger);
    background: var(--danger);
    color: #fff;
}

.ad-slot {
    display: flex;
    min-height: 160px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    border: 1px dashed #9eb1b8;
    border-radius: 8px;
    background: repeating-linear-gradient(135deg, #f8fbfb, #f8fbfb 12px, #eef5f6 12px, #eef5f6 24px);
    color: var(--muted);
    text-align: center;
}

.ad-slot span {
    color: var(--ink);
    font-weight: 800;
}

.section-heading,
.admin-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-header.compact {
    margin-bottom: 0.75rem;
}

.header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.section-heading h2,
.admin-header h1,
.admin-card h2,
.side-panel h2 {
    margin: 0.15rem 0 0;
    letter-spacing: 0;
}

.tile-grid,
.result-grid,
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1rem;
}

.directory-tile,
.result-card,
.admin-card,
.side-panel,
.stat-grid > div {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.directory-tile,
.result-card {
    display: block;
    min-height: 150px;
    padding: 1.15rem;
}

.directory-tile strong,
.result-card h3 {
    display: block;
    margin: 0.25rem 0;
    color: var(--ink);
    font-size: 1.1rem;
}

.directory-tile span,
.brand-list span {
    color: var(--muted);
    font-size: 0.9rem;
}

.directory-tile p,
.result-card p {
    color: var(--muted);
    margin-bottom: 0;
}

.brand-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 0.65rem;
}

.brand-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 48px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.75rem 0.85rem;
    background: #fff;
    font-weight: 750;
}

.brand-list.large a { min-height: 58px; }

.with-sidebar,
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 1.4rem;
    align-items: start;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-weight: 750;
}

.article-content,
.article-sidebar {
    display: grid;
    gap: 1rem;
}

.section-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.section-nav a {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.6rem 0.75rem;
    background: #fff;
    color: var(--ink);
    font-weight: 800;
}

.section-nav a.active {
    border-color: var(--brand);
    background: var(--brand);
    color: #fff;
}

.article-content section {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: 1.35rem;
    box-shadow: var(--shadow);
}

.article-content h2 {
    margin-top: 0;
}

.table-wrap,
.admin-table-wrap {
    overflow-x: auto;
}

.faq-list {
    display: grid;
    gap: 0.7rem;
}

.help-link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
}

.help-link-grid a {
    display: grid;
    gap: 0.25rem;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.85rem;
    background: #fbfcfc;
}

.help-link-grid strong {
    color: var(--ink);
}

.help-link-grid span {
    color: var(--muted);
    font-size: 0.9rem;
}

details {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.85rem;
    background: #fbfcfc;
}

summary {
    cursor: pointer;
    font-weight: 800;
}

.side-panel {
    padding: 1rem;
}

.side-panel a {
    display: block;
    padding: 0.7rem 0;
    border-top: 1px solid var(--line);
}

.empty-state {
    color: var(--muted);
    padding: 1rem;
}

.admin-body {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    min-height: 100vh;
    background: #eef3f4;
}

.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
    background: #172026;
    color: #fff;
}

.admin-sidebar a {
    color: #fff;
}

.admin-sidebar nav {
    display: grid;
    gap: 0.35rem;
}

.admin-sidebar nav a {
    border-radius: 6px;
    padding: 0.75rem;
}

.admin-sidebar nav a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.admin-sidebar form {
    margin-top: auto;
}

.admin-main {
    width: 100%;
    max-width: 1180px;
    padding: 2rem;
}

.admin-card {
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.admin-card.narrow {
    max-width: 760px;
}

.admin-grid {
    display: grid;
    grid-template-columns: minmax(300px, 0.75fr) minmax(0, 1.25fr);
    gap: 1rem;
}

.stat-grid {
    margin-bottom: 1rem;
}

.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.admin-list {
    display: grid;
    gap: 1rem;
}

.admin-user-card {
    display: grid;
    gap: 1rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1rem;
    background: #fbfcfc;
}

.document-card {
    display: grid;
    gap: 1rem;
    align-content: space-between;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1rem;
    background: #fbfcfc;
}

.document-card strong {
    display: block;
    color: var(--ink);
    font-size: 1.05rem;
}

.document-card p,
.document-card span {
    color: var(--muted);
}

.document-card p {
    margin: 0.35rem 0;
}

.document-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

.stat-grid > div {
    padding: 1rem;
}

.stat-grid strong {
    display: block;
    font-size: 2rem;
}

.stack-form,
.product-editor,
.form-grid {
    display: grid;
    gap: 1rem;
}

.form-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

label {
    display: grid;
    gap: 0.35rem;
    color: var(--muted);
    font-weight: 750;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--ink);
}

.check-row input {
    width: auto;
}

.help-text,
.notice {
    color: var(--muted);
}

.notice {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.75rem;
    background: #fff;
    margin-bottom: 1rem;
}

.auth-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: #eef3f4;
}

.login-panel {
    width: min(100%, 440px);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1.5rem;
    background: #fff;
    box-shadow: var(--shadow);
}

@media (max-width: 820px) {
    .site-header,
    .site-footer,
    .section-heading,
    .admin-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero,
    .product-hero,
    .with-sidebar,
    .article-layout,
    .admin-grid,
    .admin-body {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: static;
        height: auto;
    }

    .admin-main {
        padding: 1rem;
    }

    .search-bar {
        flex-direction: column;
    }
}