/* ==========================================================================
   Crown Construction (Home Counties) Ltd
   Design system — grounded in the trade: site hoarding boards, hazard tape,
   brick, chalk downs. Condensed signage type, a working colour set, spec-
   sheet mono for the small print.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800;900&family=Inter:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  /* Colour */
  --ink: #22282A;          /* charcoal — primary text, dark panels */
  --ink-soft: #454F4C;     /* secondary text on light */
  --paper: #ECEEE7;        /* stone-grey ground, cool not cream */
  --paper-raised: #F7F8F4; /* card surface, lighter than ground */
  --crown-green: #4E8A2C;  /* deepened logo green — AA on white */
  --crown-green-bright: #7DBB3F; /* logo-true green — icons, small accents */
  --brick: #9A4229;        /* Kentish brick red — warm secondary accent */
  --steel: #6B7570;        /* muted caption / border grey */
  --amber: #D9971F;        /* hazard amber — sparing use in stripe motif */
  --line: #D6D9CD;         /* hairline borders on paper */
  --line-dark: #3A423F;    /* hairline borders on ink */

  /* Type */
  --font-display: 'Big Shoulders Display', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.96;
  margin: 0 0 0.4em;
  color: var(--ink);
}

h1 { font-size: clamp(2.6rem, 6vw, 5rem); font-weight: 900; }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); }

p { margin: 0 0 1em; color: var(--ink-soft); }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--crown-green);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: 0.9em;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 3px;
  background: var(--crown-green);
  display: inline-block;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --------------------------- Hazard stripe motif ------------------------- */
/* The one signature device: site-tape diagonal stripe, used sparingly as a
   section border to mark a transition — literally the trade's own hazard
   tape, repurposed as a typographic rule. */
.stripe-band {
  height: 10px;
  background: repeating-linear-gradient(
    -45deg,
    var(--ink) 0px, var(--ink) 16px,
    var(--crown-green-bright) 16px, var(--crown-green-bright) 32px
  );
}
.stripe-band.amber {
  background: repeating-linear-gradient(
    -45deg,
    var(--ink) 0px, var(--ink) 16px,
    var(--amber) 16px, var(--amber) 32px
  );
}

/* --------------------------------- Header --------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand img { height: 52px; width: auto; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.05rem;
  line-height: 1.05;
  color: var(--ink);
}
.brand-word span {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: none;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--steel);
}

.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 10px 14px;
  border-radius: var(--radius);
  transition: color 0.15s ease, background 0.15s ease;
}
.main-nav a:hover { color: var(--ink); background: var(--paper-raised); }
.main-nav a.active { color: var(--crown-green); }
.main-nav a.cta {
  background: var(--ink);
  color: #fff !important;
  margin-left: 8px;
}
.main-nav a.cta:hover { background: var(--crown-green); color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: relative;
}
.nav-toggle { flex-direction: column; gap: 5px; }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 8px var(--gutter) 18px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 6px; }
  .main-nav a.cta { margin-left: 0; text-align: center; margin-top: 8px; }
}

/* --------------------------------- Buttons -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 15px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--crown-green); color: #fff; }
.btn-primary:hover { background: var(--ink); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--crown-green); }
.btn-outline { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-outline-light:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* --------------------------------- Hero ----------------------------------- */
.hero {
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero .container {
  padding-top: clamp(56px, 9vw, 110px);
  padding-bottom: clamp(56px, 9vw, 110px);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { color: #fff; }
.hero .eyebrow { color: var(--crown-green-bright); }
.hero .eyebrow::before { background: var(--crown-green-bright); }
.hero p.lede {
  color: #C9CFC7;
  font-size: 1.15rem;
  max-width: 46ch;
}
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.hero-panel {
  background: var(--line-dark);
  border: 1px solid #4A534F;
  border-radius: var(--radius);
  padding: 28px;
}
.hero-panel .stat-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid #4A534F;
  font-family: var(--font-mono);
}
.hero-panel .stat-row:last-child { border-bottom: none; }
.hero-panel .stat-label {
  color: #A9B1AB;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-panel .stat-value {
  color: #fff;
  font-weight: 600;
}

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
}

/* --------------------------------- Sections -------------------------------- */
section { padding: clamp(56px, 8vw, 100px) 0; }
.section-head {
  max-width: 62ch;
  margin-bottom: 44px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.bg-ink { background: var(--ink); color: #fff; }
.bg-ink h2, .bg-ink h3 { color: #fff; }
.bg-ink p { color: #C9CFC7; }
.bg-ink .eyebrow { color: var(--crown-green-bright); }
.bg-ink .eyebrow::before { background: var(--crown-green-bright); }
.bg-raised { background: var(--paper-raised); }

/* Services grid */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper-raised);
  padding: 32px;
}
.card .num {
  font-family: var(--font-mono);
  color: var(--crown-green);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 14px;
  display: block;
}
.card h3 { margin-bottom: 0.5em; }
.card p { font-size: 0.95rem; }

/* Why us list */
.reasons { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 40px; }
@media (max-width: 700px) { .reasons { grid-template-columns: 1fr; } }
.reason { display: flex; gap: 16px; }
.reason .mark {
  flex: none;
  width: 34px; height: 34px;
  background: var(--crown-green);
  color: #fff;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}
.reason h4 { font-family: var(--font-body); text-transform: none; font-weight: 700; font-size: 1.02rem; margin-bottom: 0.25em; letter-spacing: 0; color: var(--ink); }
.reason p { font-size: 0.92rem; }

/* Gallery / projects */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: 9px 16px;
  border-radius: var(--radius);
  cursor: pointer;
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .project-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .project-grid { grid-template-columns: 1fr; } }

.project-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
}
.project-card .thumb {
  aspect-ratio: 4/3;
  background: var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.project-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-card .body { padding: 20px 22px 22px; }
.project-card .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--crown-green);
  display: block;
  margin-bottom: 8px;
}
.project-card h3 { font-size: 1.15rem; margin-bottom: 0.3em; }
.project-card .loc {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel);
}

/* Testimonials */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 860px) { .testi-grid { grid-template-columns: 1fr; } }
.testi {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 4px solid var(--crown-green);
  border-radius: var(--radius);
  padding: 28px;
}
.testi p.quote {
  color: var(--ink);
  font-size: 1.02rem;
  margin-bottom: 18px;
}
.testi .who {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--steel);
}
.testi .who strong { color: var(--ink); font-weight: 600; }

/* CTA band */
.cta-band {
  background: var(--crown-green);
  color: #fff;
  text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.9); }
.cta-band .btn-dark:hover { background: var(--ink); }

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus,
button:focus-visible, a:focus-visible {
  outline: 3px solid var(--crown-green-bright);
  outline-offset: 2px;
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.85rem; color: var(--steel); margin-top: 10px; }

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 780px) {
  .contact-layout { grid-template-columns: 1fr; }
}

.contact-info {
  display: grid;
  gap: 20px;
}
.contact-info .item { display: flex; gap: 16px; }
.contact-info .item .mark {
  flex: none; width: 40px; height: 40px;
  background: var(--ink); color: var(--crown-green-bright);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700;
}
.contact-info .item h4 { font-family: var(--font-body); text-transform: none; letter-spacing: 0; font-size: 1rem; margin-bottom: 0.2em; }
.contact-info .item p { font-size: 0.94rem; }
.contact-info .item a { text-decoration: none; color: var(--crown-green); font-weight: 600; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: #C9CFC7;
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid #3A423F;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  font-family: var(--font-mono);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  margin-bottom: 16px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { text-decoration: none; color: #C9CFC7; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--crown-green-bright); }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-brand img { height: 44px; filter: brightness(0) invert(1) opacity(0.92); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #7C8580;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: #7C8580; text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

/* Reg no / small print */
.regno { font-family: var(--font-mono); font-size: 0.78rem; color: #7C8580; }

/* Page header (non-home pages) */
.page-header {
  background: var(--ink);
  color: #fff;
  padding: clamp(48px, 7vw, 84px) 0 clamp(40px, 6vw, 60px);
}
.page-header h1 { color: #fff; margin-bottom: 0.25em; }
.page-header p { color: #C9CFC7; max-width: 60ch; font-size: 1.05rem; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-charlie {
  display: inline-block;
  padding: 6px 16px;
  color: #ffffff;                      /* White text */
  background-color: transparent;       /* Transparent background */
  border: 1px solid rgba(255, 255, 255, 0.8); /* Subtle white border */
  border-radius: 20px;                 /* Rounded corners */
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.3s ease-in-out;
}

.btn-charlie:hover {
  color: #ffffff;                      /* Keeps text white */
  border-color: #ffffff;               /* Brightens border */
  /* Creates a soft faint white glow around the box */
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.4), 
              0 0 20px rgba(255, 255, 255, 0.2);
}