/* ============ Tekno Construction — design system ============ */
/* Brand colours taken from Tekno's official logo sheet (black/charcoal + gold).
   Variable names kept as --navy/--amber for continuity; values are the real brand. */
:root {
  --navy: #1a1a1a;        /* logo black */
  --navy-2: #2b2b2b;      /* charcoal (logo-sheet swatch) */
  --amber: #d9a441;       /* brand gold (logo-sheet swatch) */
  --amber-dark: #b8862f;  /* deeper gold for hover states */
  --ink: #1f1f1f;
  --muted: #6b6b6b;
  --line: #e6e6e6;
  --bg: #ffffff;
  --bg-soft: #f6f6f4;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.10);
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.65; }
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; }
h1, h2, h3, h4 { line-height: 1.2; font-weight: 800; color: var(--navy); }

.container { width: min(1160px, 92%); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 8px; top: 8px; background: var(--amber); padding: 8px 14px; z-index: 100; }

.section { padding: 72px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); margin-bottom: 10px; }
.section-head p { color: var(--muted); }
.eyebrow { display: inline-block; color: var(--amber-dark); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; margin-bottom: 8px; }

/* Buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 8px; font-weight: 700; text-decoration: none; transition: transform 0.15s ease, background 0.15s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-accent { background: var(--amber); color: var(--navy); }
.btn-accent:hover { background: var(--amber-dark); color: #fff; }
.btn-outline { border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--navy); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }

/* Topbar */
.topbar { background: var(--navy); color: #d6d6d6; font-size: 0.85rem; }
.topbar a { color: var(--amber); text-decoration: none; font-weight: 700; }
.topbar-inner { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; flex-wrap: wrap; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 20px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-img { height: 54px; width: auto; display: block; }
.logo-text { font-size: 1.15rem; font-weight: 400; color: var(--navy); }
.logo-text strong { font-weight: 800; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { text-decoration: none; font-weight: 600; font-size: 0.95rem; color: var(--ink); }
.site-nav a:hover { color: var(--amber-dark); }
.site-nav .nav-cta { padding: 10px 18px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 3px; background: var(--navy); margin: 5px 0; border-radius: 2px; transition: 0.2s; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; padding: 88px 0 96px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; background: radial-gradient(circle, rgba(217,164,65,0.20), transparent 65%); }
.hero-inner { max-width: 720px; position: relative; z-index: 1; }
.hero h1 { color: #fff; font-size: clamp(2rem, 4.6vw, 3.2rem); margin-bottom: 18px; }
.hero h1 em { color: var(--amber); font-style: normal; }
.hero p { color: #dcdcdc; font-size: 1.12rem; margin-bottom: 30px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-badges { display: flex; gap: 22px; flex-wrap: wrap; color: #d6d6d6; font-weight: 600; font-size: 0.92rem; }
.hero-badges span { display: flex; align-items: center; gap: 8px; }

/* Stats strip */
.stats { background: var(--amber); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; padding: 26px 0; gap: 12px; }
.stats b { display: block; font-size: 1.7rem; color: var(--navy); }
.stats span { color: #6b5210; font-weight: 600; font-size: 0.9rem; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: box-shadow 0.2s ease, transform 0.2s ease; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.card .icon { font-size: 1.9rem; margin-bottom: 14px; }
.card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.94rem; margin-bottom: 12px; }
.card a { color: var(--amber-dark); font-weight: 700; text-decoration: none; font-size: 0.92rem; }
.card a:hover { text-decoration: underline; }

/* Why us */
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { text-align: center; padding: 10px; }
.why-item .icon { display: grid; place-items: center; width: 64px; height: 64px; margin: 0 auto 14px; background: var(--bg-soft); border-radius: 50%; font-size: 1.6rem; }
.why-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
.why-item p { color: var(--muted); font-size: 0.9rem; }

/* Areas */
.areas { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.area-chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 10px 22px; font-weight: 700; text-decoration: none; color: var(--navy); transition: 0.15s; }
.area-chip:hover { background: var(--navy); color: #fff; }

/* Testimonials */
.quote-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.quote-card p { color: var(--ink); font-size: 0.96rem; margin-bottom: 14px; }
.quote-card cite { font-style: normal; font-weight: 700; color: var(--navy); font-size: 0.9rem; }
.quote-card .stars { color: var(--amber); letter-spacing: 2px; margin-bottom: 10px; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; padding: 56px 0; }
.cta-band h2 { color: #fff; font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin-bottom: 8px; }
.cta-band p { color: #dcdcdc; }
.cta-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-band-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Footer */
.site-footer { background: #141414; color: #c4c4c4; font-size: 0.92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 56px 0 36px; }
.site-footer h3 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer a { color: #c4c4c4; text-decoration: none; }
.site-footer a:hover { color: var(--amber); }
.site-footer li { margin-bottom: 8px; }
.footer-logo { margin-bottom: 16px; }
.footer-logo img { height: 72px; width: auto; }
.footer-bottom { border-top: 1px solid #333333; padding: 18px 0; text-align: center; color: #8a8a8a; font-size: 0.85rem; }

/* Floating WhatsApp button (all devices) */
.floating-wa { position: fixed; right: 18px; bottom: 18px; z-index: 60; width: 58px; height: 58px; border-radius: 50%; background: #25d366; display: grid; place-items: center; box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45); transition: transform 0.15s ease; }
.floating-wa:hover { transform: scale(1.08); }
.floating-wa svg { width: 34px; height: 34px; }

/* Floating call button (mobile, stacked above WhatsApp) */
.floating-call { display: none; position: fixed; right: 18px; bottom: 86px; z-index: 60; width: 56px; height: 56px; border-radius: 50%; background: var(--amber); color: var(--navy); font-size: 1.5rem; text-decoration: none; place-items: center; box-shadow: var(--shadow); }

/* AI support assistant — bottom-left circle, same 58px size as the WhatsApp button */
.chat-launcher { position: fixed; left: 18px; bottom: 18px; z-index: 60; width: 58px; height: 58px; border-radius: 50%; border: 0; cursor: pointer; background: var(--navy); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 20px rgba(0,0,0,.35); transition: transform .15s ease; }
.chat-launcher:hover { transform: scale(1.08); }
.chat-launcher .dot { font-size: 28px; line-height: 1; }
.chat-panel { position: fixed; left: 18px; bottom: 84px; z-index: 61; width: min(370px, calc(100vw - 36px)); height: min(520px, calc(100vh - 130px)); background: var(--bg); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 50px rgba(0,0,0,.28); display: none; flex-direction: column; overflow: hidden; }
.chat-panel.open { display: flex; }
.chat-head { background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: #fff; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; }
.chat-head b { font-size: .98rem; }
.chat-head span { font-size: .74rem; color: #cfcfcf; display: block; }
.chat-head .chat-close { background: none; border: 0; color: #fff; font-size: 1.3rem; cursor: pointer; line-height: 1; }
.chat-log { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: var(--bg-soft); }
.chat-bubble { max-width: 82%; padding: 10px 13px; border-radius: 13px; font-size: .9rem; line-height: 1.45; white-space: pre-wrap; }
.chat-bubble.bot { background: #fff; border: 1px solid var(--line); color: var(--ink); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-bubble.user { background: var(--navy); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-bubble.bot a { color: var(--amber-dark); font-weight: 700; }
.chat-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.chat-chip { border: 1px solid var(--amber); background: #fff8ec; color: #8a5a12; border-radius: 999px; padding: 6px 11px; font-size: .78rem; cursor: pointer; }
.chat-form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); background: var(--bg); }
.chat-input { flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font: inherit; font-size: .9rem; }
.chat-input:focus { outline: 2px solid var(--amber); border-color: var(--amber); }
.chat-send { border: 0; background: var(--amber); color: var(--navy); font-weight: 800; border-radius: 10px; padding: 0 16px; cursor: pointer; }
.chat-send:hover { background: var(--amber-dark); color: #fff; }
@media (max-width: 720px) {
  .chat-launcher span.label { display: none; }
  .chat-launcher { padding: 12px; }
}

/* Page hero (inner pages) */
.page-hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; padding: 56px 0; }
.page-hero h1 { color: #fff; font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
.page-hero p { color: #dcdcdc; max-width: 640px; margin-top: 10px; }

/* Prose (long-form service pages) */
.prose { max-width: 780px; }
.prose h2 { font-size: 1.5rem; margin: 36px 0 14px; }
.prose h3 { font-size: 1.15rem; margin: 26px 0 10px; }
.prose p, .prose li { color: #3a3a3a; margin-bottom: 12px; }
.prose ul { list-style: disc; padding-left: 22px; }
.prose table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.prose th { background: var(--bg-soft); }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.g-tile { display: block; text-decoration: none; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; transition: box-shadow 0.2s ease, transform 0.2s ease; }
.g-tile:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.g-tile svg, .g-tile img { display: block; width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; }
.g-label { padding: 16px 20px; }
.g-label h3 { font-size: 1.02rem; margin-bottom: 2px; }
.g-label span { color: var(--muted); font-size: 0.85rem; }
.gallery-note { margin-top: 40px; text-align: center; background: var(--bg-soft); border-radius: var(--radius); padding: 32px; }
.gallery-note p { color: var(--ink); margin-bottom: 16px; }
@media (max-width: 960px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .gallery-grid { grid-template-columns: 1fr; } }

/* Homepage recent-work strip */
.work-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.work-strip a { position: relative; display: block; border-radius: var(--radius); overflow: hidden; text-decoration: none; box-shadow: var(--shadow); }
.work-strip img { display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform 0.3s ease; }
.work-strip a:hover img { transform: scale(1.06); }
.work-strip span { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 14px 12px; color: #fff; font-weight: 700; font-size: 0.92rem; background: linear-gradient(to top, rgba(0,0,0,0.8), transparent); }
@media (max-width: 860px) { .work-strip { grid-template-columns: repeat(2, 1fr); } }

/* Service-page inline photo */
.service-photo { width: 100%; max-width: 780px; border-radius: var(--radius); box-shadow: var(--shadow); margin: 8px 0 24px; aspect-ratio: 16/10; object-fit: cover; }

/* Forms */
.quote-form label { display: block; font-weight: 700; color: var(--navy); margin-bottom: 16px; font-size: 0.92rem; }
.quote-form input, .quote-form select, .quote-form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 8px; font: inherit; font-weight: 400; color: var(--ink); background: #fff;
}
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { outline: 2px solid var(--amber); border-color: var(--amber); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { margin-top: 16px; color: var(--muted); font-size: 0.9rem; }
.form-note a { color: var(--amber-dark); font-weight: 700; }
.quote-form button { border: 0; cursor: pointer; font: inherit; font-weight: 700; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* FAQ */
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; margin-bottom: 12px; background: #fff; }
.faq summary { font-weight: 700; cursor: pointer; color: var(--navy); }
.faq details p { margin-top: 10px; color: var(--muted); }

/* Responsive */
@media (max-width: 960px) {
  .grid-3, .grid-4, .why { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 1080px) {
  .nav-toggle { display: block; }
  .site-nav { position: fixed; inset: 0 0 0 auto; width: min(320px, 82vw); background: #fff; flex-direction: column; align-items: flex-start; padding: 90px 28px; gap: 20px; transform: translateX(100%); transition: transform 0.25s ease; box-shadow: -12px 0 40px rgba(0,0,0,0.15); z-index: 70; }
  .site-nav.open { transform: translateX(0); }
}
@media (max-width: 720px) {
  .topbar-hours { display: none; }
  .floating-call { display: grid; }
  .section { padding: 52px 0; }
  .hero { padding: 60px 0 68px; }
}
@media (max-width: 520px) {
  .grid-3, .grid-4, .why { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}