/* ==========================================================================
   Peterhead Solar Installation — design system
   Palette rationale: granite (the buildings), North Sea navy (the coast),
   solar amber (the product). Grounded, high-contrast, not a SaaS palette.
   Type: Oswald (condensed, sturdy — headings) + Public Sans (body).
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Public+Sans:wght@400;500;600;700&display=swap');

:root {
  --ink: #142430;
  --navy: #0f2e42;
  --navy-light: #1c4a63;
  --amber: #e08e22;
  --amber-dark: #bd7515;
  --slate: #52504a;
  --granite: #75726c;
  --stone: #f6f3ec;
  --white: #ffffff;
  --border: #dad4c5;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --max-width: 1200px;
  --radius: 4px;
  --shadow: 0 2px 12px rgba(15, 46, 66, 0.1);
  --shadow-lg: 0 8px 28px rgba(15, 46, 66, 0.18);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--stone);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; color: var(--navy); margin: 0 0 0.5em; letter-spacing: 0.01em; }
h1 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; text-transform: none; }
p { margin: 0 0 1em; color: var(--slate); }
p:last-child { margin-bottom: 0; }
strong { color: var(--ink); }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
section { padding: 64px 0; }
@media (max-width: 640px) { section { padding: 44px 0; } }

/* ---- Skip link ---- */
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--amber); color: var(--navy);
  padding: 12px 20px; z-index: 200; font-weight: 600;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Focus states (accessibility) ---- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: var(--radius);
  font-weight: 700; font-size: 1rem; border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--amber); color: var(--navy); }
.btn-primary:hover { background: var(--amber-dark); box-shadow: var(--shadow); }
.btn-secondary { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.55); }
.btn-secondary:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-block { width: 100%; justify-content: center; }

/* ---- Top utility bar ---- */
.topbar {
  background: var(--ink); color: #d8dee3; font-size: 0.85rem;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; padding-top: 8px; padding-bottom: 8px; gap: 12px; flex-wrap: wrap; }
.topbar a { color: #d8dee3; }
.topbar a:hover { color: var(--amber); }
.topbar-phone { font-weight: 700; color: var(--white); }
@media (max-width: 560px) {
  .topbar .container { justify-content: flex-end; padding-top: 6px; padding-bottom: 6px; }
  .topbar span { display: none; }
}

/* ---- Header ---- */
.site-header {
  background: var(--navy);
  position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; gap: 16px; }
.wordmark { display: flex; flex-direction: column; line-height: 1; color: var(--white); }
.wordmark strong { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; letter-spacing: 0.02em; color: var(--white); }
.wordmark span { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber); margin-top: 3px; }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav ul { display: flex; gap: 22px; }
.main-nav a { color: #e7edf1; font-weight: 500; font-size: 0.96rem; padding: 6px 2px; border-bottom: 2px solid transparent; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--white); border-bottom-color: var(--amber); }
.main-nav .dropdown { position: relative; }
.main-nav .dropdown > a::after { content: "▾"; font-size: 0.7em; margin-left: 5px; }
.main-nav .dropdown-panel {
  display: none; position: absolute; top: 100%; left: -20px; background: var(--white);
  min-width: 280px; padding: 10px; border-radius: var(--radius); box-shadow: var(--shadow-lg); margin-top: 14px;
}
.main-nav .dropdown:hover .dropdown-panel,
.main-nav .dropdown:focus-within .dropdown-panel { display: block; }
.dropdown-panel a { color: var(--ink); display: block; padding: 9px 12px; border-radius: var(--radius); border: none; font-size: 0.92rem; }
.dropdown-panel a:hover { background: var(--stone); color: var(--navy); border: none; }

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-call {
  display: flex; align-items: center; gap: 8px; color: var(--white); font-weight: 700; font-size: 1.05rem;
}
.header-call svg { flex-shrink: 0; }
.header-call small { display: block; font-weight: 400; font-size: 0.68rem; color: #b9c4cc; text-transform: uppercase; letter-spacing: 0.08em; }

.nav-toggle { display: none; background: none; border: none; color: var(--white); padding: 6px; }
.nav-toggle svg { width: 28px; height: 28px; }

@media (max-width: 900px) {
  .main-nav { position: fixed; inset: 0 0 0 30%; background: var(--navy); flex-direction: column; align-items: stretch;
    padding: 90px 28px 28px; transform: translateX(100%); transition: transform 0.25s ease; overflow-y: auto; }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 12px 4px; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .main-nav .dropdown-panel { position: static; box-shadow: none; background: rgba(255,255,255,0.04); display: block; margin: 0 0 8px; }
  .main-nav .dropdown:hover .dropdown-panel, .main-nav .dropdown:focus-within .dropdown-panel { display: block; }
  .nav-toggle { display: block; }
  .header-call small { display: none; }
  .header-cta .btn { display: none; }
}

/* ---- Hero ---- */
.hero {
  position: relative; color: var(--white); background: linear-gradient(160deg, var(--navy) 0%, #0a2033 100%);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; padding: 60px 0 64px; }
.hero-eyebrow { color: var(--amber); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.82rem; margin-bottom: 14px; }
.hero h1 { color: var(--white); margin-bottom: 18px; }
.hero-lede { color: #cdd8de; font-size: 1.12rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 22px; margin-top: 34px; flex-wrap: wrap; }
.hero-trust div { font-size: 0.85rem; color: #b9c4cc; border-left: 3px solid var(--amber); padding-left: 10px; }
.hero-trust strong { display: block; color: var(--white); font-family: var(--font-display); font-size: 1.3rem; }
.hero-media { position: relative; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; padding-top: 36px; }
  .hero-media { order: -1; }
}

/* ---- Photo placeholder (used until real client photography is supplied) ---- */
.photo-slot {
  background: repeating-linear-gradient(135deg, #e4dfd0, #e4dfd0 10px, #ece7d9 10px, #ece7d9 20px);
  border: 2px dashed var(--granite);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; text-align: center;
  color: var(--slate); font-size: 0.85rem; padding: 18px; min-height: 220px;
}
.photo-slot strong { display: block; color: var(--navy); font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 6px; letter-spacing: 0.02em; }
.photo-slot.hero-photo { min-height: 420px; border-radius: 8px; }
.photo-slot.square { aspect-ratio: 1 / 1; min-height: 0; }
.photo-slot.wide { aspect-ratio: 16 / 10; min-height: 0; }
@media (max-width: 900px) { .photo-slot.hero-photo { min-height: 260px; } }

/* ---- Sun motif divider (subtle, not decorative clutter) ---- */
.sun-rule { width: 46px; height: 4px; background: var(--amber); border-radius: 2px; margin-bottom: 18px; }

/* ---- Trust bar ---- */
.trust-bar { background: var(--white); border-bottom: 1px solid var(--border); }
.trust-bar .container { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; padding: 22px 24px; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 0.92rem; color: var(--slate); font-weight: 600; }
.trust-item svg { color: var(--amber); flex-shrink: 0; }

/* ---- Section headers ---- */
.section-head { max-width: 62ch; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { color: var(--amber-dark); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.8rem; display: block; margin-bottom: 10px; }

/* ---- Cards / grids ---- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; gap: 10px;
}
.card h3 { margin-bottom: 4px; }
.card .card-icon { width: 42px; height: 42px; color: var(--amber-dark); margin-bottom: 6px; }
.card a.card-link { color: var(--navy); font-weight: 700; font-size: 0.92rem; margin-top: auto; padding-top: 8px; }
.card a.card-link:hover { color: var(--amber-dark); }

.service-card { position: relative; overflow: hidden; }
.service-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--amber); }

/* ---- Asymmetric feature row ---- */
.feature-row { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: center; }
.feature-row.reverse { grid-template-columns: 1.15fr 0.85fr; }
.feature-row.reverse .feature-row-media { order: 2; }
@media (max-width: 860px) {
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-row-media { order: -1; }
}
.feature-row ul { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.feature-row li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink); font-weight: 500; }
.feature-row li svg { flex-shrink: 0; color: var(--amber-dark); margin-top: 3px; }

/* ---- CTA band ---- */
.cta-band { background: var(--navy); color: var(--white); }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding: 46px 24px; }
.cta-band h2 { color: var(--white); margin-bottom: 8px; }
.cta-band p { color: #cdd8de; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- Location chips / coverage ---- */
.coverage-list { display: flex; flex-wrap: wrap; gap: 12px; }
.coverage-list a {
  background: var(--white); border: 1px solid var(--border); padding: 10px 18px; border-radius: 30px;
  font-weight: 600; font-size: 0.92rem; color: var(--navy);
}
.coverage-list a:hover { border-color: var(--amber); color: var(--amber-dark); }

/* ---- Breadcrumbs ---- */
.breadcrumbs { padding: 16px 0 0; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; font-size: 0.84rem; color: var(--granite); }
.breadcrumbs a { color: var(--slate); }
.breadcrumbs a:hover { color: var(--amber-dark); }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 6px; color: var(--border); }

/* ---- Page intro (service/location pages) ---- */
.page-hero { background: var(--navy); color: var(--white); padding: 40px 0 56px; }
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p { color: #cdd8de; max-width: 60ch; font-size: 1.05rem; }
.page-hero .hero-actions { margin-top: 22px; }

/* ---- Two-col body content ---- */
.content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 900px) { .content-grid { grid-template-columns: 1fr; } }
.prose h2 { margin-top: 1.6em; }
.prose h2:first-child { margin-top: 0; }
.prose ul { list-style: none; display: flex; flex-direction: column; gap: 10px; margin: 0 0 1.2em; }
.prose ul li { padding-left: 26px; position: relative; color: var(--slate); }
.prose ul li::before { content: "✓"; position: absolute; left: 0; color: var(--amber-dark); font-weight: 700; }

.sidebar-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 22px; }
.sidebar-card h3 { font-size: 1.05rem; margin-bottom: 12px; }
.sidebar-card .btn { margin-top: 6px; }
.sidebar-list { display: flex; flex-direction: column; gap: 8px; }
.sidebar-list a { font-size: 0.92rem; font-weight: 600; color: var(--navy); padding: 6px 0; border-bottom: 1px solid var(--border); }
.sidebar-list a:hover { color: var(--amber-dark); }
.sidebar-list a:last-child { border-bottom: none; }

/* ---- FAQ ---- */
.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-item summary { font-weight: 700; color: var(--navy); cursor: pointer; font-size: 1.02rem; display: flex; justify-content: space-between; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--amber-dark); font-size: 1.3rem; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin-top: 12px; }

/* ---- Badges ---- */
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(224,142,34,0.14); color: var(--amber-dark); font-weight: 700; font-size: 0.8rem; padding: 7px 12px; border-radius: 30px; }
.badge.todo { background: rgba(190,60,40,0.12); color: #a33a26; }

/* ---- TODO marker (visible, per client brief rule 7) ---- */
.todo-marker {
  display: inline-block; background: #fbe4dc; color: #8a2f1c; border: 1px dashed #c9553a;
  font-size: 0.8rem; font-weight: 700; padding: 3px 9px; border-radius: 3px; margin: 2px 0;
}

/* ---- Before/after or gallery strip ---- */
.gallery-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 700px) { .gallery-strip { grid-template-columns: 1fr 1fr; } }

/* ---- Footer ---- */
.site-footer { background: var(--ink); color: #b9c4cc; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { color: var(--white); font-family: var(--font-display); font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }
.footer-grid ul { display: flex; flex-direction: column; gap: 9px; }
.footer-grid a { font-size: 0.92rem; }
.footer-grid a:hover { color: var(--amber); }
.footer-brand p { color: #93a0a8; font-size: 0.92rem; max-width: 34ch; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.82rem; color: #7c8994; }

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }