/* ==========================================================================
   Culbertson Technologies — site theme
   ========================================================================== */

:root {
    --ink:        #0b1220;   /* near-black navy */
    --ink-2:      #0f1b30;
    --navy:       #12294d;
    --brand:      #2563eb;   /* primary blue */
    --brand-600:  #1d4ed8;
    --brand-700:  #1e40af;
    --cyan:       #22d3ee;   /* accent */
    --sky:        #38bdf8;
    --slate-900:  #0f172a;
    --slate-800:  #1e293b;
    --slate-600:  #475569;
    --slate-500:  #64748b;
    --slate-400:  #94a3b8;
    --slate-300:  #cbd5e1;
    --slate-200:  #e2e8f0;
    --slate-100:  #f1f5f9;
    --slate-50:   #f8fafc;
    --white:      #ffffff;
    --ring:       rgba(37, 99, 235, .35);
    --shadow-sm:  0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
    --shadow-md:  0 4px 6px -1px rgba(15, 23, 42, .08), 0 2px 4px -2px rgba(15, 23, 42, .06);
    --shadow-lg:  0 20px 25px -5px rgba(15, 23, 42, .10), 0 8px 10px -6px rgba(15, 23, 42, .08);
    --radius:     14px;
    --radius-sm:  10px;
    --maxw:       1140px;
    --font:       'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--slate-800);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { color: var(--slate-900); line-height: 1.2; font-weight: 700; margin: 0 0 .5rem; letter-spacing: -.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }
a { color: var(--brand-600); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--brand-700); }
.muted { color: var(--slate-500); }
.center { text-align: center; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

.skip-link {
    position: absolute; left: -999px; top: 0; background: var(--brand); color: #fff;
    padding: .6rem 1rem; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
    display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
    font-weight: 600; font-size: .98rem; line-height: 1; cursor: pointer;
    padding: .85rem 1.5rem; border-radius: 999px; border: 1.5px solid transparent;
    transition: transform .12s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
    text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-sm { padding: .6rem 1.05rem; font-size: .9rem; }
.btn-lg { padding: 1rem 1.9rem; font-size: 1.05rem; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -8px var(--brand); }
.btn-primary:hover { background: var(--brand-600); color: #fff; box-shadow: 0 12px 24px -8px var(--brand); }
.btn-ghost { background: transparent; color: var(--slate-800); border-color: var(--slate-300); }
.btn-ghost:hover { border-color: var(--slate-400); color: var(--slate-900); background: var(--slate-50); }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.4); }
.btn-light:hover { background: rgba(255,255,255,.22); color: #fff; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }
.btn-block { width: 100%; }

/* ---- Header / nav ------------------------------------------------------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.85);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--slate-200);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 800; color: var(--slate-900); letter-spacing: -.02em; }
.brand:hover { color: var(--slate-900); }
.brand-mark {
    display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), var(--cyan)); color: #fff;
    font-weight: 800; font-size: .95rem; box-shadow: 0 6px 14px -6px var(--brand);
}
.brand-name { font-size: 1.08rem; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { color: var(--slate-600); font-weight: 500; font-size: .97rem; }
.nav-links a:hover { color: var(--slate-900); }
.nav-links a.active { color: var(--brand-600); }
.nav-links a.btn { color: #fff; }

.nav-toggle, .nav-toggle-label { display: none; }

/* ---- Sections ----------------------------------------------------------- */
.section { padding: 5rem 0; }
.section-sm { padding: 3.5rem 0; }
.section-tint { background: var(--slate-50); }
.section-ink { background: var(--ink); color: var(--slate-300); }
.section-head { max-width: 720px; margin: 0 auto 3rem; text-align: center; }
.section-head p { font-size: 1.1rem; color: var(--slate-500); }
.eyebrow {
    display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
    text-transform: uppercase; color: var(--brand-600); margin-bottom: .75rem;
}
.section-ink .eyebrow { color: var(--sky); }
.section-ink h2 { color: #fff; }

/* ---- Hero --------------------------------------------------------------- */
.hero {
    position: relative; overflow: hidden; color: #fff;
    background: radial-gradient(1200px 600px at 75% -10%, #1e3a8a 0%, transparent 60%),
                radial-gradient(900px 500px at 10% 110%, #0e7490 0%, transparent 55%),
                linear-gradient(160deg, var(--ink) 0%, var(--navy) 100%);
    padding: 6rem 0 7rem;
}
.hero::after {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
    background-size: 22px 22px; -webkit-mask-image: linear-gradient(180deg, #000, transparent 70%);
    mask-image: linear-gradient(180deg, #000, transparent 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.hero h1 { color: #fff; max-width: 14ch; }
.hero p.lead { font-size: 1.2rem; color: rgba(255,255,255,.82); max-width: 52ch; margin-bottom: 2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; }
.hero-pill {
    display: inline-flex; align-items: center; gap: .5rem; padding: .4rem .9rem;
    border: 1px solid rgba(255,255,255,.2); border-radius: 999px; font-size: .85rem;
    color: rgba(255,255,255,.85); margin-bottom: 1.5rem; background: rgba(255,255,255,.06);
}
.hero-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(34,211,238,.2); }

/* Floating card in hero */
.hero-card {
    background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12);
    border-radius: 16px; padding: 1.25rem; box-shadow: var(--shadow-lg);
    backdrop-filter: blur(6px);
}
.hero-card .dots { display: flex; gap: .4rem; margin-bottom: 1rem; }
.hero-card .dots span { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.25); }
.hero-card .dots span:first-child { background: #ff5f56; }
.hero-card .dots span:nth-child(2) { background: #ffbd2e; }
.hero-card .dots span:nth-child(3) { background: #27c93f; }
.hero-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.hero-stat { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; padding: 1rem; text-align: center; }
.hero-stat .num { font-size: 1.7rem; font-weight: 800; color: #fff; }
.hero-stat .label { font-size: .78rem; color: rgba(255,255,255,.7); }

/* ---- Cards / grid ------------------------------------------------------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius);
    padding: 1.6rem; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
    display: flex; flex-direction: column;
}
.card.linked:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--slate-300); }
.card-icon {
    width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
    font-size: 1.5rem; background: linear-gradient(135deg, var(--slate-100), #fff);
    border: 1px solid var(--slate-200); margin-bottom: 1rem;
}
.card h3 { margin-bottom: .35rem; }
.card .card-sub { color: var(--slate-500); font-size: .95rem; flex-grow: 1; }
.card-foot { margin-top: 1.1rem; display: flex; align-items: center; justify-content: space-between; gap: .5rem; }

/* feature card (services) */
.feature .card-icon { background: linear-gradient(135deg, var(--brand), var(--cyan)); border: none; color: #fff; }

/* ---- Badges / tags ------------------------------------------------------ */
.tag {
    display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .03em;
    padding: .28rem .65rem; border-radius: 999px; background: var(--slate-100);
    color: var(--slate-600); border: 1px solid var(--slate-200); white-space: nowrap;
}
.tag-brand { background: #eff6ff; color: var(--brand-700); border-color: #dbeafe; }
.tag-cyan { background: #ecfeff; color: #0e7490; border-color: #cffafe; }
.tag-amber { background: #fffbeb; color: #b45309; border-color: #fef3c7; }
.tag-green { background: #ecfdf5; color: #047857; border-color: #d1fae5; }
.tag-red { background: #fef2f2; color: #b91c1c; border-color: #fee2e2; }
.tag-slate { background: var(--slate-100); color: var(--slate-600); }

.price { font-size: 1.45rem; font-weight: 800; color: var(--slate-900); letter-spacing: -.02em; }
.price small { font-size: .85rem; font-weight: 500; color: var(--slate-500); }
.price-contact { font-size: 1.05rem; font-weight: 700; color: var(--brand-600); }

/* ---- Category filter (products) ---------------------------------------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; margin-bottom: 2.5rem; }
.filter-bar a {
    padding: .55rem 1.1rem; border-radius: 999px; font-weight: 600; font-size: .9rem;
    border: 1.5px solid var(--slate-200); color: var(--slate-600); background: #fff;
}
.filter-bar a:hover { border-color: var(--slate-400); color: var(--slate-900); }
.filter-bar a.active { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ---- Feature list (checkmarks) ----------------------------------------- */
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { position: relative; padding-left: 1.9rem; margin-bottom: .65rem; color: var(--slate-700); }
.checklist li::before {
    content: "✓"; position: absolute; left: 0; top: 0; width: 1.3rem; height: 1.3rem;
    background: #eff6ff; color: var(--brand-600); border-radius: 50%; font-size: .8rem; font-weight: 700;
    display: grid; place-items: center;
}

/* ---- Detail / prose ----------------------------------------------------- */
.prose { max-width: 70ch; }
.prose p { font-size: 1.05rem; color: var(--slate-700); }
.breadcrumb { font-size: .9rem; color: var(--slate-500); margin-bottom: 1rem; }
.breadcrumb a { color: var(--slate-500); }

.detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 2.5rem; align-items: start; }
.detail-aside {
    position: sticky; top: 90px; background: #fff; border: 1px solid var(--slate-200);
    border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow-md);
}
.detail-aside .price { display: block; margin-bottom: .25rem; }
.spec { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem 0; border-bottom: 1px solid var(--slate-100); font-size: .92rem; }
.spec:last-child { border-bottom: none; }
.spec dt { color: var(--slate-500); }
.spec dd { margin: 0; color: var(--slate-800); font-weight: 600; text-align: right; }

/* ---- Forms -------------------------------------------------------------- */
.form-card {
    background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius);
    padding: 2rem; box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-group { margin-bottom: 1.2rem; }
label { display: block; font-weight: 600; font-size: .92rem; color: var(--slate-700); margin-bottom: .4rem; }
.form-control, .form-select, textarea {
    width: 100%; padding: .75rem .9rem; font-family: inherit; font-size: 1rem; color: var(--slate-900);
    background: #fff; border: 1.5px solid var(--slate-300); border-radius: var(--radius-sm);
    transition: border-color .15s ease, box-shadow .15s ease;
}
textarea { resize: vertical; min-height: 140px; }
.form-control:focus, .form-select:focus, textarea:focus {
    outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px var(--ring);
}
.field-hint { font-size: .82rem; color: var(--slate-500); margin-top: .35rem; }
.text-danger, .validation-summary-errors { color: #dc2626; font-size: .88rem; }
.validation-summary-errors ul { margin: 0; padding-left: 1.2rem; }
.checkbox-row { display: flex; align-items: center; gap: .55rem; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; font-weight: 500; }

/* ---- Alerts ------------------------------------------------------------- */
.alert { padding: 1rem 1.2rem; border-radius: var(--radius-sm); margin-bottom: 1.5rem; font-size: .95rem; border: 1px solid transparent; }
.alert-success { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-info { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }

/* ---- Confirmation / callout -------------------------------------------- */
.callout {
    text-align: center; max-width: 560px; margin: 0 auto; background: #fff;
    border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 3rem 2rem;
    box-shadow: var(--shadow-md);
}
.callout .big-icon {
    width: 76px; height: 76px; margin: 0 auto 1.25rem; border-radius: 50%; display: grid; place-items: center;
    font-size: 2.2rem; background: #ecfdf5; color: #059669;
}
.ticket-ref {
    display: inline-block; font-family: 'SFMono-Regular', Consolas, monospace; font-size: 1.5rem;
    font-weight: 700; letter-spacing: .04em; color: var(--slate-900);
    background: var(--slate-100); border: 1px dashed var(--slate-300); border-radius: 10px;
    padding: .7rem 1.3rem; margin: 1rem 0 1.5rem;
}

/* ---- CTA band ----------------------------------------------------------- */
.cta-band {
    background: linear-gradient(135deg, var(--brand-700), var(--brand) 55%, #0e7490);
    color: #fff; border-radius: 20px; padding: 3rem; text-align: center; box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 56ch; margin: 0 auto 1.75rem; font-size: 1.1rem; }

/* ---- Stats strip -------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.stat { text-align: center; }
.stat .num { font-size: 2.4rem; font-weight: 800; color: var(--slate-900); letter-spacing: -.03em; }
.section-ink .stat .num { color: #fff; }
.stat .label { color: var(--slate-500); font-size: .95rem; }
.section-ink .stat .label { color: var(--slate-400); }

/* ---- Tables (admin) ----------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--slate-200); border-radius: var(--radius); background: #fff; }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td { padding: .8rem 1rem; text-align: left; border-bottom: 1px solid var(--slate-100); }
table.data th { background: var(--slate-50); color: var(--slate-600); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
table.data tbody tr:hover { background: var(--slate-50); }
table.data td.actions { white-space: nowrap; text-align: right; }

/* ---- Admin shell -------------------------------------------------------- */
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.admin-side { background: var(--ink); color: var(--slate-300); padding: 1.5rem 1rem; }
.admin-side .brand { color: #fff; margin-bottom: 2rem; }
.admin-side nav { display: flex; flex-direction: column; gap: .25rem; }
.admin-side nav a { color: var(--slate-400); padding: .65rem .85rem; border-radius: 8px; font-weight: 500; }
.admin-side nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.admin-side nav a.active { background: var(--brand); color: #fff; }
.admin-main { background: var(--slate-50); padding: 2rem; }
.admin-topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.75rem; }
.admin-card { background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow-sm); }
.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-bottom: 1.75rem; }
.stat-card { background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.4rem; box-shadow: var(--shadow-sm); }
.stat-card .num { font-size: 2rem; font-weight: 800; color: var(--slate-900); }
.stat-card .label { color: var(--slate-500); font-size: .9rem; }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 2rem;
    background: radial-gradient(900px 500px at 50% -10%, #1e3a8a 0, transparent 60%), var(--ink); }
.login-card { width: 100%; max-width: 400px; background: #fff; border-radius: var(--radius); padding: 2.25rem; box-shadow: var(--shadow-lg); }

.utility-row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; margin-bottom: 1.5rem; }
.spacer { flex: 1; }
.mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2.5rem; }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: 1rem; }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-card { display: none; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .detail-grid { grid-template-columns: 1fr; }
    .detail-aside { position: static; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .admin-shell { grid-template-columns: 1fr; }
    .admin-side { display: flex; flex-direction: column; }
}

@media (max-width: 640px) {
    .nav-links {
        position: absolute; top: 70px; left: 0; right: 0; background: #fff;
        flex-direction: column; align-items: stretch; gap: 0; padding: .5rem 1.5rem 1.5rem;
        border-bottom: 1px solid var(--slate-200); box-shadow: var(--shadow-md);
        transform: scaleY(0); transform-origin: top; opacity: 0; transition: all .18s ease; pointer-events: none;
    }
    .nav-links a { padding: .85rem 0; border-bottom: 1px solid var(--slate-100); }
    .nav-links a.btn { margin-top: .75rem; }
    .nav-toggle:checked ~ .nav-links { transform: scaleY(1); opacity: 1; pointer-events: auto; }
    .nav-toggle-label { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: .5rem; }
    .nav-toggle-label span { width: 24px; height: 2px; background: var(--slate-800); border-radius: 2px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats, .stat-cards { grid-template-columns: 1fr 1fr; }
    .section { padding: 3.5rem 0; }
    .cta-band { padding: 2rem 1.25rem; }
}