/* ==========================================================================
   DoorSource — design system & site styles
   Mobile-first. Breakpoints: 600px (tablet), 900px (nav/desktop), 1200px (wide)
   ========================================================================== */

:root {
  /* Palette: deep forest/charcoal + warm brass accent + warm off-white */
  --color-ink: #1e2a22;
  --color-ink-soft: #2c3a30;
  --color-paper: #f7f5f0;
  --color-paper-dim: #efece4;
  --color-brass: #a9793f;
  --color-brass-dark: #8a5f2f;
  --color-sage: #7c8d76;
  --color-line: #ded9cd;
  --color-text: #262b26;
  --color-text-muted: #5b6259;
  --color-success: #2f6b3f;
  --color-success-bg: #e9f3e9;
  --color-error: #a13a3a;
  --color-error-bg: #fbeaea;

  --font-serif: Georgia, 'Times New Roman', ui-serif, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;

  --shadow-sm: 0 1px 3px rgba(30, 42, 34, 0.08), 0 1px 2px rgba(30, 42, 34, 0.06);
  --shadow-md: 0 8px 24px rgba(30, 42, 34, 0.10);
  --shadow-lg: 0 20px 45px rgba(30, 42, 34, 0.16);

  --container-width: 1200px;
  --header-height: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; }
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.15; margin: 0 0 0.5em; color: var(--color-ink); }
p { margin: 0 0 1em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 0; top: -60px; background: var(--color-ink); color: #fff;
  padding: 0.75em 1.25em; z-index: 200; transition: top 0.2s ease;
}
.skip-link:focus { top: 0; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
main { display: block; }
.section { padding: 48px 0; }
.section--tight { padding: 32px 0; }
.section--dark { background: var(--color-ink); color: var(--color-paper); }
.section--dark h2, .section--dark h3 { color: var(--color-paper); }
.section--alt { background: var(--color-paper-dim); }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }
@media (min-width: 600px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------- Buttons & forms ---------- */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  background: var(--color-ink); color: var(--color-paper); border: 1px solid var(--color-ink);
  padding: 0.85em 1.6em; border-radius: var(--radius-sm); text-decoration: none;
  font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.button:hover { background: var(--color-ink-soft); box-shadow: var(--shadow-sm); }
.button:active { transform: translateY(1px); }
.button--accent { background: var(--color-brass); border-color: var(--color-brass); color: #fff; }
.button--accent:hover { background: var(--color-brass-dark); }
.button--outline { background: transparent; color: var(--color-ink); }
.button--outline:hover { background: var(--color-ink); color: var(--color-paper); }
.button--light { background: var(--color-paper); color: var(--color-ink); border-color: var(--color-paper); }
.button--light:hover { background: #fff; }
.button--small { padding: 0.55em 1.1em; font-size: 0.85rem; margin-top: 8px; }
.button--block { width: 100%; }
.button[disabled] { opacity: 0.55; cursor: not-allowed; }

.form-field { margin-bottom: 1.1em; }
.form-field label { display: block; font-weight: 600; margin-bottom: 0.4em; font-size: 0.92rem; }
.form-field .hint { display: block; font-size: 0.82rem; color: var(--color-text-muted); margin-top: 0.3em; }
input[type="text"], input[type="email"], input[type="tel"], input[type="password"],
input[type="number"], input[type="search"], textarea, select {
  width: 100%; padding: 0.75em 0.9em; border: 1px solid var(--color-line); border-radius: var(--radius-sm);
  background: #fff; font-family: inherit; font-size: 1rem; color: var(--color-text);
}
input:focus, textarea:focus, select:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--color-brass); outline-offset: 2px;
}
fieldset { border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 1em 1.2em; margin: 0 0 1.2em; }
legend { font-weight: 700; padding: 0 0.4em; }
.checkbox-row { display: flex; align-items: flex-start; gap: 0.6em; }
.checkbox-row input { width: auto; margin-top: 0.3em; }

.flash { padding: 12px 0; text-align: center; font-weight: 600; }
.flash--success { background: var(--color-success-bg); color: var(--color-success); }
.flash--error { background: var(--color-error-bg); color: var(--color-error); }
.form-errors { background: var(--color-error-bg); color: var(--color-error); border-radius: var(--radius-sm); padding: 1em 1.2em; margin-bottom: 1.2em; }
.form-errors ul { list-style: disc; padding-left: 1.2em; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100; background: var(--color-paper);
  border-bottom: 1px solid var(--color-line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-height); gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__text { font-family: var(--font-serif); font-size: 1.3rem; color: var(--color-ink); }
.brand__text strong { color: var(--color-brass); }

.nav-toggle {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  background: none; border: none; padding: 10px; cursor: pointer; z-index: 110;
}
.nav-toggle__bar { width: 24px; height: 2px; background: var(--color-ink); transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.primary-nav {
  position: fixed; inset: var(--header-height) 0 0 0; background: var(--color-paper);
  overflow-y: auto; transform: translateX(100%); transition: transform 0.25s ease;
  padding: 16px 20px 40px; display: flex; flex-direction: column; gap: 20px;
}
.primary-nav.is-open { transform: translateX(0); }
.primary-nav__list { display: flex; flex-direction: column; gap: 2px; }
.primary-nav__link {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  background: none; border: none; text-align: left; padding: 14px 4px; font-size: 1.05rem;
  font-weight: 600; text-decoration: none; color: var(--color-ink); border-bottom: 1px solid var(--color-line);
  cursor: pointer;
}
.chev { transition: transform 0.2s ease; }
[data-menu-toggle][aria-expanded="true"] .chev { transform: rotate(180deg); }
.mega-menu { display: none; padding: 6px 4px 18px; }
.mega-menu.is-open { display: grid; gap: 20px; }
.mega-menu__col h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); margin-bottom: 0.6em; }
.mega-menu__col ul { display: flex; flex-direction: column; gap: 8px; }
.mega-menu__col a { text-decoration: none; padding: 4px 0; display: inline-block; }
.mega-menu__col a:hover { color: var(--color-brass); }

.primary-nav__utility { display: flex; align-items: center; gap: 18px; padding-top: 12px; flex-wrap: wrap; }
.utility-link { text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.basket-link { position: relative; display: inline-flex; padding: 6px; color: var(--color-ink); }
.basket-count {
  position: absolute; top: -4px; right: -4px; background: var(--color-brass); color: #fff;
  font-size: 0.68rem; font-weight: 700; min-width: 16px; height: 16px; border-radius: 999px;
  display: flex; align-items: center; justify-content: center; padding: 0 3px;
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .primary-nav {
    position: static; transform: none; inset: auto; padding: 0; background: none;
    flex-direction: row; align-items: center; gap: 0; flex: 1; justify-content: flex-end;
    overflow: visible;
  }
  .primary-nav__list { flex-direction: row; align-items: center; gap: 4px; position: relative; }
  .primary-nav__link { border-bottom: none; padding: 10px 12px; font-size: 0.95rem; white-space: nowrap; border-radius: var(--radius-sm); }
  .primary-nav__link:hover, .primary-nav__link[aria-expanded="true"] { background: var(--color-paper-dim); }
  .has-mega { position: relative; }
  .mega-menu {
    position: absolute; top: 100%; left: 0; background: #fff; border: 1px solid var(--color-line);
    border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: 24px; min-width: 560px;
    grid-template-columns: repeat(3, 1fr); gap: 32px; z-index: 120;
  }
  .mega-menu--narrow { min-width: 260px; grid-template-columns: 1fr; }
  .primary-nav__utility { padding-top: 0; margin-left: 16px; gap: 14px; }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--color-ink) 0%, var(--color-ink-soft) 100%);
  color: var(--color-paper); padding: 56px 0 64px; overflow: hidden;
}
.hero__inner { display: grid; gap: 32px; align-items: center; }
.hero h1 { color: #fff; }
.hero p.lead { font-size: 1.15rem; color: rgba(247,245,240,0.85); max-width: 46ch; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.5em; }
.hero__art { justify-self: center; }
@media (min-width: 900px) {
  .hero__inner { grid-template-columns: 1.1fr 0.9fr; }
}

.trust-bar { display: flex; flex-wrap: wrap; gap: 24px 40px; padding: 20px 0; border-bottom: 1px solid var(--color-line); }
.trust-bar__item { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--color-text-muted); font-size: 0.9rem; }
.trust-bar__item svg { flex-shrink: 0; color: var(--color-brass); }

/* ---------- Cards ---------- */
.card {
  background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md);
  overflow: hidden; display: flex; flex-direction: column; transition: box-shadow 0.2s ease, transform 0.2s ease;
  text-decoration: none; color: inherit; height: 100%;
}
a.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card__media { aspect-ratio: 4 / 3; background: var(--color-paper-dim); display: flex; align-items: center; justify-content: center; }
.card__body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card__body h3 { margin: 0; font-size: 1.1rem; }
.card__body p { color: var(--color-text-muted); font-size: 0.92rem; margin: 0; }
.card__meta { margin-top: auto; padding-top: 10px; font-size: 0.85rem; color: var(--color-brass); font-weight: 700; }

.badge { display: inline-block; background: var(--color-sage); color: #fff; font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em; padding: 3px 9px; border-radius: 999px; }
.badge--brass { background: var(--color-brass); }

/* ---------- Steps / USP list ---------- */
.steps { counter-reset: step; }
.steps__item { display: flex; gap: 16px; margin-bottom: 24px; }
.steps__item::before {
  counter-increment: step; content: counter(step); flex-shrink: 0; width: 40px; height: 40px;
  background: var(--color-ink); color: #fff; border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-family: var(--font-serif);
}

/* ---------- Door swatch SVG illustration ---------- */
.door-swatch { width: 100%; height: 100%; }
.style-swatch-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 600px) { .style-swatch-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .style-swatch-grid { grid-template-columns: repeat(5, 1fr); } }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { padding: 14px 0; font-size: 0.85rem; color: var(--color-text-muted); }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-brass); }
.breadcrumbs span[aria-hidden] { margin: 0 6px; }

/* ---------- Page header banner (for catalogue pages) ---------- */
.page-banner { background: var(--color-paper-dim); padding: 36px 0; border-bottom: 1px solid var(--color-line); }
.page-banner p { color: var(--color-text-muted); max-width: 65ch; }

/* ---------- Configurator ---------- */
.configurator {
  display: grid; gap: 32px;
}
@media (min-width: 1000px) {
  .configurator { grid-template-columns: 1fr 380px; align-items: start; }
}
.configurator__steps { display: flex; flex-direction: column; gap: 24px; }
.config-step {
  background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 22px;
}
.config-step h2 { font-size: 1.15rem; display: flex; align-items: center; gap: 10px; }
.config-step__num {
  display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px;
  background: var(--color-brass); color: #fff; border-radius: 50%; font-size: 0.85rem; font-family: var(--font-sans); font-weight: 700;
}
.option-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 14px; }
@media (min-width: 600px) { .option-grid { grid-template-columns: repeat(3, 1fr); } }
.option-card {
  border: 2px solid var(--color-line); border-radius: var(--radius-sm); padding: 12px; cursor: pointer;
  background: #fff; text-align: left; transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.option-card:hover { border-color: var(--color-brass); }
.option-card[aria-pressed="true"] { border-color: var(--color-brass); box-shadow: 0 0 0 3px rgba(169,121,63,0.18); }
.option-card__name { font-weight: 700; font-size: 0.92rem; display: block; }
.option-card__sub { font-size: 0.78rem; color: var(--color-text-muted); }
.option-card__swatch { width: 100%; height: 46px; border-radius: 4px; margin-bottom: 8px; border: 1px solid var(--color-line); }

.dim-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.summary-panel {
  background: var(--color-ink); color: var(--color-paper); border-radius: var(--radius-md); padding: 24px;
  position: sticky; top: calc(var(--header-height) + 16px);
}
.summary-panel h2 { color: #fff; font-size: 1.1rem; }
.summary-line { display: flex; justify-content: space-between; font-size: 0.9rem; padding: 6px 0; border-bottom: 1px dashed rgba(247,245,240,0.2); }
.summary-total { display: flex; justify-content: space-between; font-size: 1.3rem; font-weight: 700; padding-top: 14px; font-family: var(--font-serif); }
.summary-note { font-size: 0.78rem; color: rgba(247,245,240,0.65); margin-top: 8px; }

/* ---------- Basket / checkout tables ---------- */
.basket-table { width: 100%; border-collapse: collapse; }
.basket-table th, .basket-table td { text-align: left; padding: 14px 10px; border-bottom: 1px solid var(--color-line); vertical-align: top; }
.basket-table th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-text-muted); }
.qty-input { width: 70px; }
.basket-item__meta { font-size: 0.82rem; color: var(--color-text-muted); }
.remove-link { color: var(--color-error); text-decoration: none; font-size: 0.85rem; font-weight: 600; }
@media (max-width: 700px) {
  .basket-table thead { display: none; }
  .basket-table, .basket-table tbody, .basket-table tr, .basket-table td { display: block; width: 100%; }
  .basket-table tr { border: 1px solid var(--color-line); border-radius: var(--radius-md); margin-bottom: 14px; padding: 10px 14px; }
  .basket-table td { border-bottom: none; padding: 6px 0; }
  .basket-table td::before { content: attr(data-label); display: block; font-size: 0.72rem; color: var(--color-text-muted); text-transform: uppercase; }
}

.checkout-grid { display: grid; gap: 32px; }
@media (min-width: 900px) { .checkout-grid { grid-template-columns: 1.3fr 1fr; } }
.order-summary-box { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 22px; position: sticky; top: calc(var(--header-height) + 16px); }

/* ---------- Misc content pages ---------- */
.faq-item { border-bottom: 1px solid var(--color-line); padding: 18px 0; }
.faq-item summary { cursor: pointer; font-weight: 700; font-size: 1.02rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--color-brass); }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { margin-top: 12px; color: var(--color-text-muted); }

.timeline { display: flex; flex-direction: column; gap: 28px; }
@media (min-width: 800px) { .timeline { flex-direction: row; } }
.timeline__item { flex: 1; text-align: left; }

.pricing-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.pricing-table th, .pricing-table td { padding: 12px 14px; border-bottom: 1px solid var(--color-line); text-align: left; }
.pricing-table th { background: var(--color-paper-dim); }

.testimonial { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 22px; }
.testimonial__stars { color: var(--color-brass); letter-spacing: 2px; margin-bottom: 8px; }
.testimonial footer { margin-top: 12px; font-weight: 700; color: var(--color-ink); font-size: 0.88rem; }

.blog-post-body h2 { margin-top: 1.4em; }
.blog-post-body a { color: var(--color-brass); }

.account-nav { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.account-nav a { padding: 8px 14px; border: 1px solid var(--color-line); border-radius: 999px; text-decoration: none; font-size: 0.88rem; font-weight: 600; }
.account-nav a.is-active { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }

.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 700px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(247,245,240,0.85); padding-top: 48px; }
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1fr; padding-bottom: 32px; }
@media (min-width: 700px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 1.6fr repeat(4, 1fr); } }
.footer-col h3 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; font-family: var(--font-sans); margin-bottom: 14px; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { text-decoration: none; font-size: 0.92rem; }
.footer-col a:hover { color: #fff; }
.footer-col--brand p { font-size: 0.9rem; max-width: 32ch; }
.brand--footer .brand__text--footer { color: #fff; }
.footer-contact a { text-decoration: none; font-weight: 600; color: #fff; }
.footer-bottom { border-top: 1px solid rgba(247,245,240,0.15); margin-top: 8px; padding: 18px 0; }
.footer-bottom__inner { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 0.82rem; }
.footer-legal { display: flex; gap: 16px; }
.footer-legal a { text-decoration: none; }
.footer-legal a:hover { color: #fff; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.cluster { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }