/* ==========================================================================
   DoorWin — Security Doors & Windows, Adelaide
   Design tokens: charcoal + brushed-brass, vertical "grille" navigation
   ========================================================================== */

:root {
  --ink:        #14181C;   /* powder-coat charcoal */
  --panel:      #1B2026;   /* nav / dark panel */
  --panel-2:    #232A31;   /* raised dark surface */
  --paper:      #F2EEE6;   /* warm off-white */
  --paper-dim:  #E6E0D3;   /* soft panel on paper */
  --steel:      #5B6169;   /* mid steel grey */
  --steel-dim:  #8A8F94;
  --brass:      #AC773F;   /* brushed brass hardware */
  --brass-light:#D2A468;
  --brass-deep: #8A5E30;
  --line-dark:  rgba(242,238,230,0.14);
  --line-light: rgba(20,24,28,0.12);
  --ok:         #5F7A55;

  --font-display: 'Archivo', 'Arial Narrow', sans-serif;
  --font-body:    'Public Sans', 'Segoe UI', sans-serif;

  --nav-w: 296px;
  --radius: 2px;
}

* { box-sizing: border-box; }
html { font-size: 18px; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
  text-wrap: balance;
}
p { margin: 0 0 1em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass-deep);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--brass);
  display: inline-block;
}
.on-dark .eyebrow { color: var(--brass-light); }

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- grille motif (signature element) ----------
   Repeating vertical bars, echoing a security-door grille.
   Used behind the hero, as section dividers, and on hover states. */
.grille-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(172,119,63,0.10) 0px,
    rgba(172,119,63,0.10) 2px,
    transparent 2px,
    transparent 34px
  );
  -webkit-mask-image: linear-gradient(180deg, black, transparent 92%);
          mask-image: linear-gradient(180deg, black, transparent 92%);
}
.grille-rule {
  display: flex;
  gap: 6px;
  height: 22px;
  align-items: flex-end;
}
.grille-rule span {
  width: 3px;
  background: var(--brass);
  opacity: 0.55;
  height: 100%;
}
.grille-rule span:nth-child(2n) { height: 60%; opacity: 0.85; }
.grille-rule span:nth-child(3n) { height: 40%; }

/* ==========================================================================
   Layout shell — fixed vertical nav + main content
   ========================================================================== */

.shell { min-height: 100vh; }

.site-nav {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--nav-w);
  background: var(--panel);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(172,119,63,0.25);
  z-index: 100;
}

.nav-brand {
  padding: 2.1rem 1.9rem 1.5rem;
  border-bottom: 1px solid var(--line-dark);
}
.nav-brand a { display: block; }
.nav-brand .mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.nav-brand .mark strong { color: var(--brass-light); }
.nav-brand .sub {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-dim);
}

.nav-toggle {
  display: none;
}

.nav-links {
  padding: 1.4rem 0.9rem;
  flex: 1;
  overflow-y: auto;
}
.nav-links li + li { margin-top: 0.15rem; }
.nav-links a {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper);
  border-left: 3px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease, padding-left 0.18s ease;
}
.nav-links a .idx {
  font-size: 0.72rem;
  color: var(--steel-dim);
  font-weight: 700;
}
.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(172,119,63,0.12);
  border-left-color: var(--brass);
  padding-left: 1.25rem;
}
.nav-links a.active {
  background: rgba(172,119,63,0.16);
  border-left-color: var(--brass);
  color: var(--brass-light);
}
.nav-links a.active .idx { color: var(--brass); }

.nav-cta {
  margin: 0.6rem 0.9rem 0;
  padding: 0.9rem 1rem;
  text-align: center;
  background: var(--brass);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
}
.nav-cta:hover { background: var(--brass-light); }

.nav-foot {
  padding: 1.4rem 1.9rem 1.8rem;
  border-top: 1px solid var(--line-dark);
  font-size: 0.92rem;
  color: var(--steel-dim);
}
.nav-foot a { color: var(--paper); display: block; margin-bottom: 0.3rem; }
.nav-foot a:hover { color: var(--brass-light); }
.nav-social {
  display: flex;
  gap: 0.9rem;
  margin-top: 0.9rem;
}
.nav-social a {
  width: 34px; height: 34px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
}
.nav-social a:hover { border-color: var(--brass); color: var(--brass-light); }

.main {
  margin-left: var(--nav-w);
  min-height: 100vh;
}

.topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--panel);
  color: var(--paper);
  padding: 0.9rem 1.2rem;
  align-items: center;
  justify-content: space-between;
}
.topbar .mark { font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; }
.topbar .mark strong { color: var(--brass-light); }
.burger {
  width: 40px; height: 34px;
  background: transparent;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  gap: 4px;
  cursor: pointer;
}
.burger span { width: 18px; height: 2px; background: var(--paper); display: block; }

/* ==========================================================================
   Section rhythm
   ========================================================================== */

.section {
  padding: 5rem clamp(1.5rem, 5vw, 5rem);
  border-bottom: 1px solid var(--line-light);
}
.section-head {
  max-width: 640px;
  margin-bottom: 2.8rem;
}
.section-head h2 { font-size: clamp(2rem, 3vw, 2.6rem); margin-top: 0.5rem; }
.section-head p { font-size: 1.1rem; color: var(--steel); max-width: 54ch; }
.section.on-dark { background: var(--ink); color: var(--paper); border-bottom-color: var(--line-dark); }
.section.tint { background: var(--paper-dim); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(3.5rem, 8vw, 6.5rem) clamp(1.5rem, 5vw, 5rem);
  border-bottom: 1px solid var(--line-dark);
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, var(--ink) 22%, rgba(20,24,28,0.75) 55%, rgba(20,24,28,0.35) 100%);
}
.hero-inner { position: relative; z-index: 2; max-width: 780px; }
.hero h1 {
  font-size: clamp(2.6rem, 5.4vw, 4.4rem);
  margin: 0.5rem 0 1rem;
}
.hero h1 em { font-style: normal; color: var(--brass-light); }
.hero .lede {
  font-size: 1.25rem;
  color: #D9D4C8;
  max-width: 56ch;
  margin-bottom: 2.2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.6rem; }
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2.2rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-dark);
}
.hero-trust li {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  color: var(--steel-dim);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.hero-trust li::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--brass);
  display: inline-block;
  transform: rotate(45deg);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.02rem;
  padding: 0.95rem 1.7rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-brass { background: var(--brass); color: var(--ink); }
.btn-brass:hover { background: var(--brass-light); }
.btn-outline { border-color: var(--line-dark); color: var(--paper); }
.btn-outline:hover { border-color: var(--brass); color: var(--brass-light); }
.btn-outline.on-light { border-color: var(--line-light); color: var(--ink); }
.btn-outline.on-light:hover { border-color: var(--brass); color: var(--brass-deep); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 1.6rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--paper);
  border: 1px solid var(--line-light);
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
  overflow: hidden;
}
.card:hover { border-color: var(--brass); transform: translateY(-4px); }
.card-body { padding: 1.7rem 2rem 2rem; position: relative; }
.card .grille-rule { margin-bottom: 1.1rem; }
.card h3 { font-size: 1.3rem; }
.card p { color: var(--steel); font-size: 0.98rem; margin-bottom: 0; }
.card .num {
  position: absolute;
  top: 1.6rem; right: 1.8rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--paper);
  z-index: 2;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}
.card-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--panel);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.card:hover .card-media img { transform: scale(1.05); }

/* ---------- about section media ---------- */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3rem;
  align-items: center;
}
.about-media {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.about-media::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 10px solid var(--paper);
  outline: 1px solid var(--line-light);
  outline-offset: -10px;
  pointer-events: none;
}

/* ---------- gallery strip ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.gallery-grid a {
  display: block;
  aspect-ratio: 1/1;
  overflow: hidden;
  position: relative;
}
.gallery-grid img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, filter 0.4s ease;
  filter: grayscale(0.15);
}
.gallery-grid a:hover img { transform: scale(1.06); filter: grayscale(0); }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- product listing ---------- */
.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.6rem;
}
.cat-tabs button {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.7rem 1.3rem;
  background: transparent;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--steel);
}
.cat-tabs button.active {
  background: var(--ink);
  color: var(--brass-light);
  border-color: var(--ink);
}

.product-group { display: none; }
.product-group.active { display: block; }

.product-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.4rem;
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--line-light);
  align-items: start;
}
.product-row:last-child { border-bottom: none; }
.product-visual {
  aspect-ratio: 3/4;
  background: var(--panel);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}
.product-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(20,24,28,0.75) 0%, rgba(20,24,28,0) 45%);
}
.product-visual .grille-rule,
.product-visual .tag { position: relative; z-index: 2; }
.product-visual .grille-rule { width: 100%; justify-content: space-between; }
.product-visual .tag {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--brass-light);
  text-transform: uppercase;
}
.product-copy h3 { font-size: 1.5rem; margin-bottom: 0.4rem; }
.product-copy .tagline { color: var(--brass-deep); font-family: var(--font-display); font-weight: 700; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.8rem; }
.product-copy ul { margin-top: 1rem; }
.product-copy ul li {
  padding-left: 1.3rem;
  position: relative;
  margin-bottom: 0.5rem;
  color: var(--steel);
}
.product-copy ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 8px; height: 2px;
  background: var(--brass);
}

/* ---------- stats ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.stat-strip .stat {
  border-left: 2px solid var(--brass);
  padding-left: 1.1rem;
}
.stat .num { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; display: block; }
.stat .label { font-size: 0.88rem; color: var(--steel-dim); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- quote banner ---------- */
.quote-banner {
  background: linear-gradient(120deg, var(--brass-deep), var(--brass));
  color: var(--ink);
  padding: 3.6rem clamp(1.5rem, 5vw, 5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.quote-banner h2 { margin-bottom: 0.3rem; font-size: clamp(1.7rem, 3vw, 2.2rem); }
.quote-banner p { margin: 0; color: rgba(20,24,28,0.75); }

/* ---------- forms ---------- */
.form-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
}
.field { margin-bottom: 1.4rem; }
.field label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}
.field .req { color: var(--brass-deep); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--steel-dim);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 1rem;
  border-radius: var(--radius);
  color: var(--ink);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--brass);
  outline: none;
}
.field textarea { resize: vertical; min-height: 120px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.checks { display: grid; gap: 0.6rem; }
.checks label {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.98rem;
  cursor: pointer;
}
.checks input { width: auto; accent-color: var(--brass); }
.form-note { font-size: 0.85rem; color: var(--steel); margin-top: 1rem; }
.form-status {
  display: none;
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--ok);
  background: rgba(95,122,85,0.08);
  font-size: 0.95rem;
}
.form-status.show { display: block; }
.form-status.error { border-left-color: #A5423B; background: rgba(165,66,59,0.08); }

.info-card {
  background: var(--ink);
  color: var(--paper);
  padding: 2.4rem;
}
.info-card h3 { color: var(--brass-light); font-size: 1.2rem; }
.info-block { margin-bottom: 1.6rem; }
.info-block .label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--steel-dim); margin-bottom: 0.3rem; }
.info-block a, .info-block p { font-size: 1.05rem; margin: 0; }
.info-block a:hover { color: var(--brass-light); }
.map-frame { border: 0; width: 100%; height: 220px; margin-top: 1.6rem; filter: grayscale(0.4) contrast(1.1); }
.info-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-top: 1.8rem; }
.info-strip img { width: 100%; aspect-ratio: 1/1; object-fit: cover; filter: grayscale(0.2); }

/* ---------- footer ---------- */
.site-footer {
  background: var(--panel);
  color: var(--steel-dim);
  padding: 3.5rem clamp(1.5rem, 5vw, 5rem) 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line-dark);
}
.footer-grid h4 { color: var(--paper); font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; }
.footer-grid .mark { color: var(--paper); font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; margin-bottom: 0.8rem; }
.footer-grid .mark strong { color: var(--brass-light); }
.footer-grid p { max-width: 34ch; }
.footer-grid ul li { margin-bottom: 0.6rem; }
.footer-grid a:hover { color: var(--brass-light); }
.footer-bottom {
  padding-top: 1.6rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1080px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .form-wrap { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); row-gap: 1.8rem; }
  .about-wrap { grid-template-columns: 1fr; }
  .about-media { aspect-ratio: 16/9; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  html { font-size: 17px; }
  .site-nav {
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    width: 86vw;
    max-width: 340px;
  }
  .site-nav.open { transform: translateX(0); box-shadow: 8px 0 40px rgba(0,0,0,0.35); }
  .main { margin-left: 0; }
  .topbar { display: flex; }
  .product-row { grid-template-columns: 1fr; }
  .product-visual { aspect-ratio: 16/9; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .quote-banner { flex-direction: column; align-items: flex-start; }
  .section { padding: 3.2rem 1.3rem; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
}