/* ==============================================================
   BG House IT Solutions — "Blueprint" design system
   Palette: blueprint navy / paper / grid-line blue / signal amber / circuit teal
   Type: IBM Plex Sans (display + body) / IBM Plex Mono (data, labels, timestamps)
   ============================================================== */

:root {
    --blueprint-navy: #0E2A3D;
    --blueprint-navy-deep: #081A26;
    --paper: #F7F9FA;
    --paper-dim: #EDF1F3;
    --grid-line: #2C5F7C;
    --signal-amber: #E8A33D;
    --ink: #1B2733;
    --ink-soft: #4B5A67;
    --circuit-teal: #4FA79A;
    --line-on-navy: rgba(255, 255, 255, 0.18);
    --font-display: 'IBM Plex Sans', system-ui, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
    --radius: 3px;
    --max-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
    margin: 0;
    font-family: var(--font-display);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--signal-amber);
    outline-offset: 2px;
}

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 28px; }

.mono, .mono-note, .eyebrow, .tag-code, .stat-label, .timestamp, .card-tag {
    font-family: var(--font-mono);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 26px;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--signal-amber); color: var(--blueprint-navy-deep); }
.btn-primary:hover { transform: translateY(-1px); background: #f0af52; }
.btn-outline { background: transparent; border-color: var(--grid-line); color: var(--paper); }
.btn-outline:hover { border-color: var(--signal-amber); color: var(--signal-amber); }
.btn-outline.on-light { color: var(--ink); border-color: #c7d3d9; }
.btn-outline.on-light:hover { border-color: var(--circuit-teal); color: var(--circuit-teal); }
.btn-small { padding: 9px 18px; font-size: 11px; }
.btn-ghost { background: transparent; color: var(--grid-line); padding: 0; text-transform: none; font-family: var(--font-mono); font-size: 13px; }
.btn-ghost:hover { color: var(--signal-amber); }
.btn-ghost::after { content: ' →'; }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(14, 42, 61, 0.96);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line-on-navy);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--paper); }
.brand-mark { color: var(--signal-amber); display: inline-flex; }
.brand-text { font-weight: 700; font-size: 18px; letter-spacing: 0.01em; }
.brand-suffix { color: var(--circuit-teal); font-weight: 500; }

.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 30px; }
.nav-list a { color: rgba(247,249,250,0.78); font-size: 14.5px; font-weight: 500; padding: 6px 0; border-bottom: 2px solid transparent; transition: color 0.15s ease, border-color 0.15s ease; }
.nav-list a:hover, .nav-list a.is-active { color: var(--paper); border-color: var(--signal-amber); }
.nav-cta { background: var(--signal-amber); color: var(--blueprint-navy-deep) !important; padding: 9px 18px !important; border-radius: var(--radius); border-bottom: none !important; font-family: var(--font-mono); font-size: 12.5px !important; text-transform: uppercase; letter-spacing: 0.04em; }
.nav-cta:hover { background: #f0af52; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--paper); }

/* ---------- Hero: blueprint schematic ---------- */
.hero {
    position: relative;
    background:
        linear-gradient(var(--blueprint-navy-deep), var(--blueprint-navy-deep)),
        repeating-linear-gradient(0deg, var(--grid-line) 0, var(--grid-line) 1px, transparent 1px, transparent 40px),
        repeating-linear-gradient(90deg, var(--grid-line) 0, var(--grid-line) 1px, transparent 1px, transparent 40px);
    background-blend-mode: normal, overlay, overlay;
    background-color: var(--blueprint-navy);
    color: var(--paper);
    overflow: hidden;
    padding: 64px 0 84px;
}
.hero::before, .hero::after {
    content: '';
    position: absolute;
    width: 26px; height: 26px;
    border-color: var(--line-on-navy);
    top: 22px;
}
.hero::before { left: 22px; border-top: 2px solid; border-left: 2px solid; }
.hero::after { right: 22px; border-top: 2px solid; border-right: 2px solid; }
.hero-frame-bottom { position: absolute; bottom: 22px; left: 22px; right: 22px; display: flex; justify-content: space-between; pointer-events: none; }
.hero-frame-bottom span { display: block; width: 26px; height: 26px; }
.hero-frame-bottom span:first-child { border-bottom: 2px solid var(--line-on-navy); border-left: 2px solid var(--line-on-navy); }
.hero-frame-bottom span:last-child { border-bottom: 2px solid var(--line-on-navy); border-right: 2px solid var(--line-on-navy); }

.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }

.hero-annotation { font-size: 12px; letter-spacing: 0.08em; color: var(--circuit-teal); text-transform: uppercase; display: flex; gap: 18px; margin-bottom: 22px; }
.hero-annotation span { opacity: 0.85; }

.hero h1 { font-size: clamp(2.1rem, 4vw, 3.4rem); font-weight: 700; letter-spacing: -0.01em; max-width: 15ch; }
.hero h1 em { font-style: normal; color: var(--signal-amber); }
.hero-sub { margin-top: 20px; font-size: 17px; color: rgba(247,249,250,0.75); max-width: 46ch; }
.hero-actions { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats { margin-top: 46px; display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stat { border-left: 2px solid var(--grid-line); padding-left: 14px; }
.hero-stat .stat-value { font-family: var(--font-mono); font-size: 26px; font-weight: 600; color: var(--paper); }
.hero-stat .stat-label { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(247,249,250,0.55); }

/* Diagram: company node connected to service nodes */
.hero-diagram { position: relative; z-index: 2; aspect-ratio: 1 / 1; max-width: 440px; margin: 0 auto; }
.hero-diagram svg { width: 100%; height: 100%; overflow: visible; }
.diagram-line {
    stroke: var(--circuit-teal);
    stroke-width: 1.4;
    fill: none;
    stroke-dasharray: 6 5;
    stroke-dashoffset: 240;
    animation: draw-line 1.6s ease forwards;
}
.diagram-line:nth-of-type(2) { animation-delay: 0.15s; }
.diagram-line:nth-of-type(3) { animation-delay: 0.3s; }
.diagram-line:nth-of-type(4) { animation-delay: 0.45s; }
.diagram-line:nth-of-type(5) { animation-delay: 0.6s; }
@keyframes draw-line { to { stroke-dashoffset: 0; } }
.diagram-node-core { fill: var(--blueprint-navy); stroke: var(--signal-amber); stroke-width: 1.8; }
.diagram-node { fill: var(--blueprint-navy); stroke: var(--grid-line); stroke-width: 1.4; }
.diagram-label { font-family: var(--font-mono); font-size: 8.5px; fill: rgba(247,249,250,0.85); text-anchor: middle; }
.diagram-tag { font-family: var(--font-mono); font-size: 7px; fill: var(--circuit-teal); text-anchor: middle; letter-spacing: 0.05em; }

/* ---------- Section scaffolding ---------- */
.section { padding: 90px 0; }
.section-dim { background: var(--paper-dim); }
.section-navy { background: var(--blueprint-navy); color: var(--paper); }
.section-head { max-width: 640px; margin-bottom: 52px; }
.eyebrow {
    display: inline-block; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--circuit-teal); border: 1px solid rgba(79,167,154,0.4); border-radius: 20px;
    padding: 4px 12px; margin-bottom: 16px;
}
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-sub { margin-top: 14px; color: var(--ink-soft); font-size: 16px; max-width: 56ch; }
.section-navy .section-sub { color: rgba(247,249,250,0.7); }
.section-foot { margin-top: 46px; text-align: center; }

/* ---------- About / company info ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.about-copy p { color: var(--ink-soft); font-size: 16px; margin-bottom: 18px; }
.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px; margin-top: 30px; }
.fact-item { border-top: 1px solid #d7dfe3; padding-top: 12px; }
.fact-value { font-family: var(--font-mono); font-size: 22px; font-weight: 600; color: var(--blueprint-navy); }
.fact-label { font-size: 12.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }

.about-panel {
    background: var(--blueprint-navy); color: var(--paper); border-radius: var(--radius);
    padding: 34px; position: relative; border: 1px solid var(--grid-line);
}
.about-panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; font-family: var(--font-mono); font-size: 12px; color: rgba(247,249,250,0.6); }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--circuit-teal); box-shadow: 0 0 0 0 rgba(79,167,154,0.6); animation: pulse 2s infinite; margin-right: 6px; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(79,167,154,0.5); } 70% { box-shadow: 0 0 0 7px rgba(79,167,154,0); } 100% { box-shadow: 0 0 0 0 rgba(79,167,154,0); } }
.about-panel-list li { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--line-on-navy); font-size: 14.5px; }
.about-panel-list li:last-child { border-bottom: none; }
.about-panel-list .val { font-family: var(--font-mono); color: var(--signal-amber); }

/* ---------- Services ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: #fff; border: 1px solid #dde5e9; border-top: 3px dashed var(--grid-line);
    border-radius: var(--radius); padding: 28px; position: relative;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
    display: flex; flex-direction: column; height: 100%;
}
.service-card:hover { transform: translateY(-4px); border-top-color: var(--signal-amber); box-shadow: 0 14px 30px -18px rgba(14,42,61,0.35); }
.card-tag { position: absolute; top: -11px; left: 24px; background: var(--paper); padding: 0 8px; font-size: 11px; color: var(--grid-line); letter-spacing: 0.05em; }
.service-icon { color: var(--blueprint-navy); margin-bottom: 18px; }
.service-card h3 { font-size: 19px; margin-bottom: 10px; }
.service-card p { color: var(--ink-soft); font-size: 14.5px; flex-grow: 1; }
.service-card .btn-ghost { margin-top: 18px; align-self: flex-start; }

/* ---------- Clients / signal strip ---------- */
.client-panel { background: var(--blueprint-navy); border-radius: var(--radius); padding: 10px 10px 28px; border: 1px solid var(--grid-line); }
.client-panel-head { display: flex; align-items: center; gap: 8px; padding: 12px 18px; font-family: var(--font-mono); font-size: 11.5px; color: rgba(247,249,250,0.55); letter-spacing: 0.05em; border-bottom: 1px solid var(--line-on-navy); margin-bottom: 6px; }
.clients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.client-tile {
    background: var(--blueprint-navy-deep); padding: 26px 20px; text-align: center;
    transition: background 0.15s ease;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.client-tile:hover { background: #10334a; }
.client-badge {
    width: 52px; height: 52px; border-radius: 50%; border: 1.5px solid var(--circuit-teal);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-weight: 600; color: var(--circuit-teal); font-size: 15px;
}
.client-tile-name { color: var(--paper); font-size: 13.5px; font-weight: 500; }
.client-tile-industry { color: rgba(247,249,250,0.5); font-size: 11.5px; font-family: var(--font-mono); }
.client-tile-link { font-family: var(--font-mono); font-size: 11px; color: var(--signal-amber); opacity: 0; transition: opacity 0.15s ease; }
.client-tile:hover .client-tile-link, .client-tile:focus-within .client-tile-link { opacity: 1; }

/* ---------- News / system log ---------- */
.log-list { border: 1px solid #dde5e9; border-radius: var(--radius); overflow: hidden; background: #fff; }
.log-entry { display: grid; grid-template-columns: 150px 100px 1fr auto; gap: 20px; align-items: center; padding: 20px 24px; border-bottom: 1px solid #eaeff1; transition: background 0.15s ease; }
.log-entry:last-child { border-bottom: none; }
.log-entry:hover { background: var(--paper-dim); }
.log-timestamp { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-soft); }
.log-tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em; padding: 4px 9px; border-radius: 20px; text-align: center; white-space: nowrap; }
.tag-security { background: #fde8e8; color: #b3403f; }
.tag-cloud { background: #e6f2f6; color: #2d6a86; }
.tag-patch { background: #eef2e0; color: #5c7027; }
.tag-update { background: #eee7f6; color: #6647a3; }
.log-title h3 { font-size: 16px; margin-bottom: 4px; }
.log-title p { color: var(--ink-soft); font-size: 13.5px; }
.log-entry .btn-ghost { font-size: 12.5px; }

/* ---------- Detail pages ---------- */
.detail-hero { background: var(--blueprint-navy); color: var(--paper); padding: 46px 0; }
.breadcrumb { font-family: var(--font-mono); font-size: 12.5px; color: rgba(247,249,250,0.55); margin-bottom: 16px; }
.breadcrumb a { color: var(--circuit-teal); }
.detail-hero h1 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); max-width: 22ch; }
.detail-hero .card-tag-solo { font-family: var(--font-mono); font-size: 12px; color: var(--signal-amber); letter-spacing: 0.06em; margin-bottom: 14px; display: block; }

.detail-body { padding: 60px 0; }
.detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 56px; }
.detail-main p { color: var(--ink-soft); font-size: 16px; margin-bottom: 20px; }
.feature-checklist { margin-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.feature-checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink); }
.feature-checklist li svg { flex-shrink: 0; margin-top: 2px; color: var(--circuit-teal); }

.detail-side { border: 1px solid #dde5e9; border-radius: var(--radius); padding: 26px; background: #fff; height: fit-content; }
.detail-side h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: 16px; }
.detail-side .btn { width: 100%; justify-content: center; margin-top: 6px; }

.testimonial-quote { font-size: 20px; line-height: 1.5; color: var(--ink); border-left: 3px solid var(--signal-amber); padding-left: 22px; margin: 26px 0; }
.detail-meta-list li { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid #eaeff1; font-size: 14px; }
.detail-meta-list li:last-child { border-bottom: none; }
.detail-meta-list .val { font-family: var(--font-mono); color: var(--blueprint-navy); }

.article-content p { color: var(--ink); font-size: 16.5px; margin-bottom: 20px; max-width: 68ch; }

/* ---------- Page intro (used by services.php / clients.php / news.php) ---------- */
.page-intro { background: var(--paper-dim); padding: 54px 0; border-bottom: 1px solid #dde5e9; }
.page-intro .eyebrow { margin-bottom: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--blueprint-navy-deep); color: rgba(247,249,250,0.75); padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--line-on-navy); }
.footer-col p { font-size: 14px; color: rgba(247,249,250,0.6); margin-top: 12px; }
.footer-heading { font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.07em; color: rgba(247,249,250,0.85); margin-bottom: 16px; }
.footer-list li { margin-bottom: 10px; font-size: 14px; }
.footer-list a:hover { color: var(--signal-amber); }
.footer-form-note { margin-bottom: 16px; }
.mono-note { font-family: var(--font-mono); font-size: 12px; color: rgba(247,249,250,0.5); margin-top: 14px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 22px; font-size: 12.5px; color: rgba(247,249,250,0.45); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-diagram { max-width: 340px; }
    .about-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .clients-grid { grid-template-columns: repeat(2, 1fr); }
    .detail-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
    .nav-toggle { display: flex; }
    .nav-list {
        position: absolute; top: 72px; left: 0; right: 0; background: var(--blueprint-navy);
        flex-direction: column; align-items: stretch; gap: 0; max-height: 0; overflow: hidden;
        border-bottom: 1px solid var(--line-on-navy); transition: max-height 0.25s ease;
    }
    .nav-list.is-open { max-height: 340px; }
    .nav-list li { padding: 0 28px; }
    .nav-list a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line-on-navy); }
    .nav-cta { display: inline-block; margin: 14px 0; }
    .services-grid { grid-template-columns: 1fr; }
    .clients-grid { grid-template-columns: 1fr; }
    .about-facts { grid-template-columns: 1fr 1fr; }
    .log-entry { grid-template-columns: 1fr; gap: 8px; text-align: left; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 22px; }
}