:root{
    --bg:#f4f7fb;
    --surface:#ffffff;
    --surface-soft:#f8fafc;
    --surface-muted:#eef3f9;
    --text:#152033;
    --text-soft:#5c6b82;
    --line:#dbe3ef;
    --primary:#2563eb;
    --primary-dark:#1d4ed8;
    --secondary:#0f766e;
    --danger:#b91c1c;
    --warning:#b45309;
    --success:#15803d;
    --shadow:0 18px 42px rgba(15,23,42,.08);
    --radius:24px;
    --radius-md:18px;
    --radius-sm:12px;
    --container:1280px;
}

*,
*::before,
*::after{box-sizing:border-box}

html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:Tahoma, "Segoe UI", Arial, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(37,99,235,.08), transparent 30%),
        radial-gradient(circle at bottom left, rgba(15,118,110,.08), transparent 25%),
        var(--bg);
    color:var(--text);
    line-height:1.8;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
code,pre{font-family:Consolas, Monaco, monospace}

.container{
    width:min(calc(100% - 32px), var(--container));
    margin-inline:auto;
}

.site-shell{min-height:100vh;display:flex;flex-direction:column}
.site-main{flex:1}

.site-header{
    position:sticky;
    top:0;
    z-index:50;
    backdrop-filter:blur(18px);
    background:rgba(244,247,251,.88);
    border-bottom:1px solid rgba(219,227,239,.8);
}
.header-grid{
    min-height:86px;
    display:grid;
    grid-template-columns:auto 1fr auto;
    align-items:center;
    gap:18px;
}
.brand{
    display:flex;
    align-items:center;
    gap:12px;
}
.brand-mark{
    width:52px;
    height:52px;
    border-radius:16px;
    display:grid;
    place-items:center;
    background:linear-gradient(135deg, var(--primary), #60a5fa);
    color:#fff;
    font-size:1.4rem;
    font-weight:700;
    box-shadow:var(--shadow);
}
.brand strong{display:block;font-size:1.1rem}
.brand small{display:block;color:var(--text-soft);font-size:.84rem}

.main-nav{
    display:flex;
    align-items:center;
    justify-content:flex-end;
    gap:10px;
    flex-wrap:wrap;
}
.main-nav a{
    padding:10px 14px;
    border-radius:999px;
    color:var(--text-soft);
    transition:.25s ease;
}
.main-nav a:hover,
.main-nav a.is-active{
    color:var(--text);
    background:rgba(37,99,235,.10);
}
.main-nav .button,
.main-nav .button:hover{color:#fff}
.ghost-link{border:1px solid var(--line)}

.mobile-nav-toggle{
    display:none;
    width:48px;
    height:48px;
    border-radius:16px;
    border:1px solid var(--line);
    background:#fff;
    padding:0;
    cursor:pointer;
}
.mobile-nav-toggle span{
    width:22px;
    height:2px;
    background:var(--text);
    display:block;
    margin:5px auto;
    transition:.25s ease;
}

.hero{
    padding:48px 0 18px;
}
.hero-grid{
    display:grid;
    grid-template-columns:1.08fr .92fr;
    gap:28px;
    align-items:center;
}
.hero-visual{
    background:linear-gradient(145deg, rgba(37,99,235,.12), rgba(15,118,110,.10));
    border-radius:32px;
    padding:16px;
    box-shadow:var(--shadow);
}
.hero-visual img{border-radius:24px}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 14px;
    border-radius:999px;
    background:rgba(37,99,235,.10);
    color:var(--primary);
    font-weight:700;
    font-size:.88rem;
    margin-bottom:16px;
}
.hero h1,
.section h1{
    font-size:clamp(2rem, 3.4vw, 3.7rem);
    line-height:1.18;
    margin:0 0 18px;
}
.hero-copy,
.lead{
    font-size:1.05rem;
    color:var(--text-soft);
    margin:0 0 20px;
}
.hero-search{
    display:grid;
    grid-template-columns:1fr auto;
    gap:12px;
    background:var(--surface);
    padding:12px;
    border-radius:22px;
    box-shadow:var(--shadow);
    margin-bottom:16px;
}
.hero-search input{
    border:none;
    padding:14px 16px;
    border-radius:16px;
    background:var(--surface-soft);
    outline:none;
}
.hero-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
}
.button{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:linear-gradient(135deg, var(--primary), var(--primary-dark));
    color:#fff;
    border:none;
    border-radius:16px;
    padding:13px 18px;
    font-weight:700;
    cursor:pointer;
    box-shadow:0 12px 26px rgba(37,99,235,.20);
    transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover{transform:translateY(-1px); box-shadow:0 16px 28px rgba(37,99,235,.25)}
.button-secondary{
    background:#fff;
    color:var(--text);
    border:1px solid var(--line);
    box-shadow:none;
}
.button-secondary:hover{box-shadow:var(--shadow)}
.button-sm{
    padding:10px 14px;
    border-radius:12px;
    font-size:.94rem;
}
.text-link{
    color:var(--primary);
    font-weight:700;
}
.stats-grid{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:14px;
    margin-top:28px;
}
.stat-card{
    background:var(--surface);
    border:1px solid rgba(255,255,255,.85);
    box-shadow:var(--shadow);
    border-radius:22px;
    padding:20px;
}
.stat-card strong{
    display:block;
    font-size:1.35rem;
    margin-bottom:8px;
}
.stat-card span{color:var(--text-soft)}

.section{padding:34px 0}
.section-muted{background:rgba(255,255,255,.45)}
.section-head{
    display:flex;
    align-items:end;
    justify-content:space-between;
    gap:16px;
    margin-bottom:22px;
}
.section-head.compact{margin-bottom:14px}
.section-head h2{
    margin:0;
    font-size:clamp(1.5rem, 2vw, 2rem);
}

.categories-grid,
.cards-grid,
.three-up{
    display:grid;
    gap:18px;
}
.categories-grid{grid-template-columns:repeat(3, minmax(0,1fr))}
.cards-grid{grid-template-columns:repeat(4, minmax(0,1fr))}
.three-up{grid-template-columns:repeat(3, minmax(0,1fr))}

.category-card,
.listing-card,
.feature-card,
.side-card,
.table-card,
.auth-card,
.form-card,
.guide-card,
.notice,
.empty-state{
    background:var(--surface);
    border:1px solid rgba(255,255,255,.85);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
}

.category-card{
    padding:22px;
    transition:.25s ease;
}
.category-card:hover{transform:translateY(-4px)}
.category-icon{
    width:56px;
    height:56px;
    display:grid;
    place-items:center;
    border-radius:18px;
    background:rgba(37,99,235,.10);
    font-size:1.6rem;
    margin-bottom:14px;
}
.category-card strong{display:block;margin-bottom:8px}
.category-card p{margin:0;color:var(--text-soft)}

.listing-card{
    overflow:hidden;
    display:flex;
    flex-direction:column;
}
.listing-image{
    position:relative;
    aspect-ratio:4/3;
    overflow:hidden;
    background:linear-gradient(135deg, rgba(37,99,235,.10), rgba(15,118,110,.08));
}
.listing-image img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .35s ease;
}
.listing-card:hover .listing-image img{transform:scale(1.05)}
.listing-body{padding:18px;display:flex;flex-direction:column;gap:12px;height:100%}
.listing-body h3{
    font-size:1.08rem;
    margin:0;
    line-height:1.5;
}
.card-meta{
    display:flex;
    align-items:center;
    gap:8px;
    flex-wrap:wrap;
}
.badge{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:999px;
    background:rgba(37,99,235,.12);
    color:var(--primary);
    padding:7px 10px;
    font-weight:700;
    font-size:.82rem;
}
.badge-light{
    background:var(--surface-muted);
    color:var(--text-soft);
}
.listing-meta-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:8px 10px;
    color:var(--text-soft);
    font-size:.94rem;
}
.card-footer{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-top:auto;
}
.card-footer strong{font-size:1.08rem}

.feature-card{
    padding:24px;
}
.feature-card h3{margin-top:0;margin-bottom:8px}
.feature-card p{margin:0;color:var(--text-soft)}

.market-layout{
    display:grid;
    grid-template-columns:320px minmax(0,1fr);
    gap:20px;
    align-items:start;
}
.filter-panel,
.results-panel{
    display:block;
}
.filter-panel{
    position:sticky;
    top:108px;
}
.filter-panel form,
.side-card,
.auth-card,
.form-card,
.guide-card{
    padding:22px;
}
.results-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    margin-bottom:16px;
}
.field{
    display:flex;
    flex-direction:column;
    gap:8px;
}
.field > span{
    font-weight:700;
    font-size:.95rem;
}
.field input,
.field select,
.field textarea{
    width:100%;
    border:1px solid var(--line);
    background:var(--surface-soft);
    color:var(--text);
    border-radius:16px;
    padding:13px 14px;
    outline:none;
    transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
    border-color:rgba(37,99,235,.35);
    box-shadow:0 0 0 4px rgba(37,99,235,.10);
    background:#fff;
}
.field.checkbox{
    flex-direction:row;
    align-items:center;
    gap:10px;
}
.field.checkbox input{
    width:18px;
    height:18px;
    padding:0;
}
.stack-gap{display:grid;gap:16px}
.two-col{display:grid;grid-template-columns:repeat(2, minmax(0,1fr));gap:16px}
.three-col{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:16px}
.four-col{display:grid;grid-template-columns:repeat(4, minmax(0,1fr));gap:16px}

.product-layout{
    display:grid;
    grid-template-columns:minmax(0, 1.25fr) 380px;
    gap:24px;
    align-items:start;
}
.product-main{
    display:grid;
    gap:22px;
}
.product-gallery,
.product-copy{
    background:var(--surface);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:22px;
}
.product-cover{
    aspect-ratio:16/10;
    overflow:hidden;
    border-radius:24px;
    background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(15,118,110,.08));
}
.product-cover img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.gallery-thumbs{
    display:grid;
    grid-template-columns:repeat(4, minmax(0,1fr));
    gap:10px;
    margin-top:12px;
}
.thumb-button{
    border:none;
    padding:0;
    border-radius:14px;
    overflow:hidden;
    cursor:pointer;
    background:transparent;
}
.thumb-button img{
    width:100%;
    aspect-ratio:1/1;
    object-fit:cover;
}
.spec-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:14px;
    margin:20px 0;
}
.spec-grid > div{
    background:var(--surface-soft);
    border:1px solid var(--line);
    border-radius:18px;
    padding:14px;
}
.spec-grid span{
    display:block;
    color:var(--text-soft);
    font-size:.9rem;
    margin-bottom:6px;
}
.spec-grid strong{font-size:1rem}

.info-box{
    padding:18px;
    background:linear-gradient(145deg, rgba(37,99,235,.08), rgba(15,118,110,.06));
    border-radius:20px;
    border:1px solid rgba(37,99,235,.12);
}
.info-box h3{margin-top:0}
.tag-row{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    margin-top:12px;
}
.tag{
    background:#fff;
    border:1px solid rgba(37,99,235,.12);
    border-radius:999px;
    padding:7px 12px;
    font-size:.86rem;
}

.sticky-stack{
    position:sticky;
    top:104px;
    display:grid;
    gap:18px;
}
.price-card .price-xl{
    display:block;
    font-size:2rem;
    margin:10px 0;
}

.auth-section{padding-top:56px}
.auth-grid{
    display:grid;
    grid-template-columns:1fr 440px;
    gap:24px;
    align-items:center;
}
.auth-grid.wide{grid-template-columns:.85fr 1.15fr}
.auth-copy{padding:12px 0}
.auth-card{max-width:100%}

.dashboard-grid,
.guide-layout,
.install-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 360px;
    gap:20px;
    align-items:start;
}
.dashboard-stats{margin-bottom:20px}
.timeline,
.check-list,
.footer-links,
.guide-steps{
    margin:0;
    padding-inline-start:20px;
}
.timeline li,
.check-list li,
.footer-links li,
.guide-steps li{
    margin-bottom:12px;
}
.code-block{
    background:#0f172a;
    color:#e2e8f0;
    border-radius:18px;
    padding:16px;
    overflow:auto;
    margin:16px 0;
}
.code-block pre{margin:0; white-space:pre-wrap}

.table-card{padding:0;overflow:hidden}
.table-wrap{overflow:auto}
table{
    width:100%;
    border-collapse:collapse;
    min-width:720px;
}
thead{background:var(--surface-soft)}
th,td{
    text-align:right;
    padding:14px 16px;
    border-bottom:1px solid var(--line);
    vertical-align:top;
}
tbody tr:hover{background:rgba(37,99,235,.03)}

.form-page .form-card{padding:24px}
.form-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    justify-content:flex-start;
}

.install-alert{padding-top:20px}
.notice{
    padding:16px 18px;
    margin-bottom:12px;
}
.notice a{color:inherit;text-decoration:underline}
.notice-warning{
    background:#fff7ed;
    border-color:#fed7aa;
    color:#9a3412;
}
.notice-success{
    background:#ecfdf5;
    border-color:#bbf7d0;
    color:#166534;
}
.notice-danger{
    background:#fef2f2;
    border-color:#fecaca;
    color:#991b1b;
}
.notice-info{
    background:#eff6ff;
    border-color:#bfdbfe;
    color:#1d4ed8;
}

.empty-state{
    padding:30px;
    text-align:center;
}
.empty-state h1,
.empty-state h3{
    margin-top:0;
}

.flashes{padding-top:18px}
.muted{color:var(--text-soft)}
.clamp-2{
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.1fr .8fr 1fr;
    gap:24px;
}
.site-footer{
    padding:26px 0 40px;
    border-top:1px solid rgba(219,227,239,.75);
    background:rgba(255,255,255,.46);
    margin-top:34px;
}
.site-footer h3,
.site-footer h4{margin-top:0}
.footer-links{list-style:none;padding:0}
.footer-links a{color:var(--text-soft)}
.footer-links a:hover{color:var(--primary)}

pre, code{direction:ltr; text-align:left}
.install-steps table{min-width:420px}

@media (max-width: 1180px){
    .cards-grid{grid-template-columns:repeat(3, minmax(0,1fr))}
    .categories-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    .product-layout{grid-template-columns:1fr}
    .sticky-stack{position:static}
    .dashboard-grid,
    .guide-layout,
    .install-layout{grid-template-columns:1fr}
}

@media (max-width: 980px){
    .header-grid{grid-template-columns:auto auto; justify-content:space-between}
    .mobile-nav-toggle{display:block}
    .main-nav{
        grid-column:1 / -1;
        display:none;
        width:100%;
        padding-bottom:16px;
        justify-content:flex-start;
        flex-direction:column;
        align-items:stretch;
    }
    .main-nav.is-open{display:flex}
    .main-nav a{width:100%; border-radius:16px}
    .hero-grid,
    .auth-grid,
    .auth-grid.wide,
    .market-layout{grid-template-columns:1fr}
    .filter-panel{position:static}
    .stats-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    .cards-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    .three-up{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
}

@media (max-width: 680px){
    .container{width:min(calc(100% - 22px), var(--container))}
    .hero{padding-top:30px}
    .hero-search{grid-template-columns:1fr}
    .two-col,
    .three-col,
    .four-col,
    .spec-grid,
    .listing-meta-grid,
    .stats-grid,
    .cards-grid,
    .categories-grid,
    .gallery-thumbs{grid-template-columns:1fr}
    .section-head,
    .results-head,
    .card-footer{
        flex-direction:column;
        align-items:flex-start;
    }
    .product-gallery,
    .product-copy,
    .side-card,
    .guide-card,
    .auth-card,
    .form-card{padding:18px}
    .site-footer{padding-bottom:28px}
}

.quick-tags,
.city-cloud,
.active-filters,
.logo-cloud,
.cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}
.quick-tags{margin-top:18px}
.logo-cloud{margin-top:20px}
.logo-pill{
    display:flex;
    flex-direction:column;
    gap:4px;
    min-width:180px;
    padding:16px 18px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:18px;
    box-shadow:var(--shadow);
}
.logo-pill small{color:var(--text-soft)}
.cta-panel{
    background:linear-gradient(145deg, rgba(37,99,235,.08), rgba(15,118,110,.08));
    border:1px solid rgba(37,99,235,.12);
    border-radius:32px;
    padding:28px;
    display:grid;
    grid-template-columns:1.25fr .75fr;
    gap:22px;
    align-items:center;
    box-shadow:var(--shadow);
}
.cta-actions{justify-content:flex-start}
.narrow-content{width:min(calc(100% - 32px), 920px)}
.prose-card p{margin-top:0}
.faq-list{display:grid;gap:16px}
.padded-head{padding:18px 20px 0}
.section-split-top{margin-top:22px}
.messages-layout{
    display:grid;
    grid-template-columns:340px minmax(0,1fr);
    gap:20px;
    align-items:start;
}
.messages-sidebar,
.messages-panel{padding:20px}
.thread-list{display:grid;gap:10px}
.thread-item{
    display:block;
    padding:14px 16px;
    border-radius:18px;
    background:var(--surface-soft);
    border:1px solid var(--line);
    transition:.2s ease;
}
.thread-item:hover,
.thread-item.is-active{
    background:rgba(37,99,235,.08);
    border-color:rgba(37,99,235,.22);
}
.thread-item strong{display:block;margin-bottom:4px}
.thread-item small,
.thread-item span,
.thread-item p{display:block;color:var(--text-soft)}
.thread-item p{margin:6px 0 8px}
.message-thread{
    display:grid;
    gap:12px;
    max-height:520px;
    overflow:auto;
    padding-inline-end:4px;
    margin:10px 0 18px;
}
.message-bubble{
    max-width:80%;
    padding:14px 16px;
    border-radius:20px;
    box-shadow:var(--shadow);
}
.message-bubble strong{display:block;margin-bottom:6px}
.message-bubble p{margin:0 0 8px}
.message-bubble small{color:var(--text-soft)}
.message-in{background:var(--surface-soft);justify-self:start}
.message-out{background:rgba(37,99,235,.10);justify-self:end}
.compact-timeline li p{margin:.2rem 0}
@media (max-width: 980px){
    .messages-layout,
    .cta-panel{grid-template-columns:1fr}
}