/* ============================================================
   ROYAL APPLIANCE & COUNTERTOP PROTECTION — design system
   Same Royal family: near-black surfaces, champagne-gold accent.
   ============================================================ */

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.75rem, 0.5rem + 7vw, 6rem);

  --space-1: 0.25rem;  --space-2: 0.5rem;   --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.25rem;  --space-6: 1.5rem;
  --space-8: 2rem;     --space-10: 2.5rem;  --space-12: 3rem;
  --space-16: 4rem;    --space-20: 5rem;    --space-24: 6rem;
  --space-32: 8rem;

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Work Sans', 'Helvetica Neue', Arial, sans-serif;

  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1rem;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-default: 1080px;
  --content-wide: 1240px;
}

:root,
[data-theme='dark'] {
  --color-bg: #0d0c0a;
  --color-surface: #131210;
  --color-surface-2: #171614;
  --color-surface-offset: #1d1b18;
  --color-surface-dynamic: #2a2723;
  --color-divider: oklch(0.25 0.01 80 / 0.7);
  --color-border: oklch(0.45 0.03 85 / 0.28);
  --color-text: #ece7dd;
  --color-text-muted: #a49d91;
  --color-text-faint: #6e6a61;
  --color-text-inverse: #14120c;
  --color-primary: #c9a45c;
  --color-primary-hover: #e0bd76;
  --color-primary-deep: #8a6d35;
  --color-primary-soft: oklch(0.78 0.09 85 / 0.12);
  --color-primary-glow: oklch(0.78 0.09 85 / 0.06);
  --shadow-sm: 0 1px 2px oklch(0.1 0.01 80 / 0.4);
  --shadow-md: 0 6px 20px oklch(0.1 0.01 80 / 0.45);
  --shadow-lg: 0 16px 48px oklch(0.08 0.01 80 / 0.55);
}

[data-theme='light'] {
  --color-bg: #faf8f4;
  --color-surface: #ffffff;
  --color-surface-2: #f4f1ea;
  --color-surface-offset: #eeeade;
  --color-surface-dynamic: #e6e1d3;
  --color-divider: oklch(0.85 0.02 85 / 0.8);
  --color-border: oklch(0.5 0.03 85 / 0.25);
  --color-text: #221f19;
  --color-text-muted: #6b6459;
  --color-text-faint: #9b9486;
  --color-text-inverse: #faf8f4;
  --color-primary: #8a6d35;
  --color-primary-hover: #6b5326;
  --color-primary-deep: #5c4720;
  --color-primary-soft: oklch(0.75 0.08 85 / 0.14);
  --color-primary-glow: oklch(0.75 0.08 85 / 0.08);
  --shadow-sm: 0 1px 2px oklch(0.25 0.02 85 / 0.08);
  --shadow-md: 0 6px 20px oklch(0.25 0.02 85 / 0.1);
  --shadow-lg: 0 16px 48px oklch(0.25 0.02 85 / 0.14);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d0c0a; --color-surface: #131210; --color-surface-2: #171614;
    --color-surface-offset: #1d1b18; --color-surface-dynamic: #2a2723;
    --color-divider: oklch(0.25 0.01 80 / 0.7); --color-border: oklch(0.45 0.03 85 / 0.28);
    --color-text: #ece7dd; --color-text-muted: #a49d91; --color-text-faint: #6e6a61;
    --color-text-inverse: #14120c;
    --color-primary: #c9a45c; --color-primary-hover: #e0bd76; --color-primary-deep: #8a6d35;
    --color-primary-soft: oklch(0.78 0.09 85 / 0.12); --color-primary-glow: oklch(0.78 0.09 85 / 0.06);
  }
}

/* ---------- components ---------- */

body {
  background:
    radial-gradient(1200px 600px at 85% -10%, var(--color-primary-glow), transparent 60%),
    var(--color-bg);
}

.container { width: min(var(--content-default), 100% - 2 * var(--space-8)); margin-inline: auto; }
.container-wide { width: min(var(--content-wide), 100% - 2 * var(--space-8)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); min-height: 76px; }

.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: var(--color-text); }
.brand__mark { flex: none; color: var(--color-primary); }
.brand__name { font-family: var(--font-display); font-size: var(--text-lg); line-height: 1; color: var(--color-text); }
.brand__name em { font-style: normal; color: var(--color-primary); }
.brand__tag { display: block; font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--color-text-muted); margin-top: var(--space-1); }

.site-nav { display: flex; align-items: center; gap: var(--space-1); }
.site-nav a { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); text-decoration: none; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); }
.site-nav a:hover { color: var(--color-text); background: var(--color-surface-offset); }
.header-cta { display: flex; align-items: center; gap: var(--space-3); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.04em;
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-md);
  text-decoration: none; border: 1px solid transparent; min-height: 44px; cursor: pointer;
  white-space: nowrap;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); color: var(--color-text-inverse); }
.btn--outline { border-color: var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary-soft); }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: var(--radius-md);
  color: var(--color-text-muted); border: 1px solid var(--color-border);
}
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-primary); }

.nav-toggle { display: none; width: 44px; height: 44px; border-radius: var(--radius-md); color: var(--color-text); align-items: center; justify-content: center; }

/* Hero */
.hero { position: relative; min-height: 92svh; display: grid; align-items: end; overflow: hidden; isolation: isolate; }
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__scrim {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to top, oklch(0.12 0.01 80 / 0.96) 0%, oklch(0.12 0.01 80 / 0.5) 45%, oklch(0.12 0.01 80 / 0.22) 100%),
    linear-gradient(to right, oklch(0.12 0.01 80 / 0.82), transparent 60%);
}
[data-theme='light'] .hero__scrim {
  background:
    linear-gradient(to top, oklch(0.98 0.01 85 / 0.96) 0%, oklch(0.98 0.01 85 / 0.55) 45%, oklch(0.98 0.01 85 / 0.28) 100%),
    linear-gradient(to right, oklch(0.98 0.01 85 / 0.88), transparent 60%);
}
.hero__content { padding-block: var(--space-24) var(--space-16); max-width: 660px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: var(--space-5);
}
.eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--color-primary); }

.hero h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--text-hero); line-height: 1.02;
  color: var(--color-text); margin-bottom: var(--space-6);
  text-shadow: 0 2px 24px oklch(0 0 0 / 0.35);
}
.hero h1 em { font-style: italic; color: var(--color-primary); }
.hero > .container p, .hero__content > p { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 48ch; margin-bottom: var(--space-8); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); }

.hero__facts { display: flex; flex-wrap: wrap; gap: var(--space-6) var(--space-10); margin-top: var(--space-12); padding-top: var(--space-6); border-top: 1px solid oklch(0.9 0.02 85 / 0.25); }
[data-theme='light'] .hero__facts { border-color: oklch(0.3 0.02 85 / 0.2); }
.hero__facts div { font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-text-muted); }
.hero__facts strong { display: block; font-family: var(--font-display); font-size: var(--text-lg); letter-spacing: 0; text-transform: none; color: var(--color-primary); margin-bottom: var(--space-1); }

/* Sections */
.section { padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.section--tight { padding-block: clamp(var(--space-10), 5vw, var(--space-16)); }

.section-head { margin-bottom: var(--space-12); max-width: 660px; }
.section-head h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--text-2xl); line-height: 1.08; margin-block: var(--space-3) var(--space-5); }
.section-head p { color: var(--color-text-muted); }

.section-head--split { max-width: none; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-10); align-items: end; }
.section-head--split .lead { color: var(--color-text-muted); align-self: end; }

/* Services */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-6); }
.svc-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; }
.svc-card__media img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.svc-card__body { padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); flex-grow: 1; }
.svc-card h3 { font-size: var(--text-lg); font-weight: 600; }
.svc-card p { color: var(--color-text-muted); flex-grow: 1; }
.svc-card ul { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip { font-size: var(--text-xs); color: var(--color-text-muted); border: 1px solid var(--color-border); border-radius: 999px; padding: 0.2rem 0.7rem; }

/* Split feature */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(var(--space-8), 5vw, var(--space-16)); align-items: center; }
.split__media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); }
.split__media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.split h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--text-2xl); line-height: 1.08; margin-block: var(--space-3) var(--space-5); }
.split p { color: var(--color-text-muted); margin-bottom: var(--space-4); }

.point-list { display: grid; gap: var(--space-4); margin-top: var(--space-6); margin-bottom: var(--space-8); }
.point-list li { display: grid; grid-template-columns: 22px 1fr; gap: var(--space-3); color: var(--color-text-muted); }
.point-list svg { color: var(--color-primary); margin-top: 0.3rem; }
.point-list strong { color: var(--color-text); font-weight: 600; }

/* Threats grid */
.threat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-5); }
.threat-grid article { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.threat-grid h3 { font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-primary); }
.threat-grid p { font-size: var(--text-sm); color: var(--color-text-muted); }

/* Steps */
.steps { counter-reset: step; display: grid; gap: var(--space-8); }
.steps li { counter-increment: step; display: grid; grid-template-columns: 64px 1fr; gap: var(--space-6); align-items: start; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display); font-style: italic; font-size: var(--text-xl);
  color: var(--color-primary); border-bottom: 2px solid var(--color-primary-deep);
  padding-bottom: var(--space-2); line-height: 1.2;
}
.steps h3 { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-2); }
.steps p { color: var(--color-text-muted); }

/* FAQ */
.faq-list { display: grid; gap: var(--space-4); max-width: 780px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.faq-item summary {
  list-style: none; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5) var(--space-6); font-weight: 600; font-size: var(--text-base); min-height: 44px; cursor: pointer;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-primary); transition: transform var(--transition-interactive); }
.faq-item details[open] summary::after { transform: rotate(45deg); }
.faq-item details[open] summary { border-bottom: 1px solid var(--color-divider); }
.faq-item .faq-body { padding: var(--space-5) var(--space-6); color: var(--color-text-muted); }

/* Quote band */
.quote-band { background: linear-gradient(120deg, var(--color-surface-offset), var(--color-surface-2)); border-block: 1px solid var(--color-border); }
.quote-band__inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-8); align-items: center; }
.quote-band h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--text-xl); line-height: 1.15; margin-block: var(--space-3) var(--space-4); }
.quote-band p { color: var(--color-text-muted); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(var(--space-8), 5vw, var(--space-16)); align-items: start; }
.contact-cards { display: grid; gap: var(--space-4); }
.contact-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.contact-card h2 { font-size: var(--text-xs); letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-text-muted); font-weight: 600; margin-bottom: var(--space-3); }
.contact-card .value { font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-text); text-decoration: none; display: inline-block; }
.contact-card .value:hover { color: var(--color-primary); }
.contact-card p { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: var(--space-2); }

.quote-form { display: grid; gap: var(--space-5); }
.quote-form fieldset { border: none; display: grid; gap: var(--space-5); }
.quote-form label { display: grid; gap: var(--space-2); font-size: var(--text-sm); font-weight: 600; }
.quote-form input, .quote-form textarea, .quote-form select {
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-3) var(--space-4);
  font-size: var(--text-base); color: var(--color-text); min-height: 44px; width: 100%;
}
.quote-form textarea { min-height: 110px; resize: vertical; }
.form-note { font-size: var(--text-xs); color: var(--color-text-faint); }

/* Footer */
.site-footer { border-top: 1px solid var(--color-border); background: oklch(from var(--color-bg) l c h / 0.6); padding-block: var(--space-16) var(--space-8); margin-top: var(--space-16); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-10); margin-bottom: var(--space-12); }
.footer-grid h2 { font-size: var(--text-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-text-muted); font-weight: 600; margin-bottom: var(--space-4); }
.footer-grid ul { display: grid; gap: var(--space-2); }
.footer-grid a { color: var(--color-text-muted); text-decoration: none; font-size: var(--text-sm); }
.footer-grid a:hover { color: var(--color-primary); }
.footer-brand p { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: var(--space-4); max-width: 36ch; }
.footer-bottom { border-top: 1px solid var(--color-divider); padding-top: var(--space-6); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); font-size: var(--text-xs); color: var(--color-text-faint); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 600ms cubic-bezier(0.16,1,0.3,1), transform 600ms cubic-bezier(0.16,1,0.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* Responsive */
@media (max-width: 900px) {
  .split, .contact-grid, .quote-band__inner, .section-head--split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 1120px) {
  .header-cta .btn--outline { display: none; }
}

.site-nav .nav-cta { display: none; }

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .container { width: min(var(--content-default), 100% - 2 * var(--space-4)); }
  .header-cta .btn--primary { display: none; }
  .site-nav .nav-cta {
    display: block;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    margin-top: var(--space-2);
  }
  .site-nav .nav-cta:hover { background: var(--color-primary-hover); color: var(--color-text-inverse); }
  .site-header__inner { min-height: 64px; gap: var(--space-3); flex-wrap: nowrap; }
  .header-cta { gap: var(--space-2); margin-left: auto; }
  .header-cta .btn--primary { padding-inline: var(--space-4); font-size: var(--text-xs); letter-spacing: 0; flex-shrink: 1; overflow: hidden; text-overflow: ellipsis; }
  .theme-toggle { width: 40px; height: 40px; flex: none; }
  .nav-toggle { width: 40px; height: 40px; flex: none; }
  .brand__name { font-size: var(--text-base); }
  .brand__tag { font-size: 0.52rem; letter-spacing: 0.16em; }
  .brand__mark { width: 34px; height: 34px; }
  .site-nav {
    position: absolute; top: 100%; inset-inline: var(--space-4);
    flex-direction: column; align-items: stretch;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: var(--space-3); box-shadow: var(--shadow-lg); display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: var(--space-4); }
  .steps li { grid-template-columns: 44px 1fr; gap: var(--space-4); }
  .hero { min-height: 94svh; }
}