/* ==========================================================================
   Creative Interiors — Core Stylesheet
   Design tokens, typography, layout primitives, section base styles.
   ========================================================================== */

:root {
  /* Color tokens */
  --color-primary: #0F172A;      /* deep ink navy */
  --color-accent: #C8A96A;       /* warm brass gold */
  --color-accent-soft: #DCC594;
  --color-secondary: #F8F6F2;    /* warm cream */
  --color-white: #FFFFFF;
  --color-dark-gray: #2B2B2B;
  --color-text: #3A3A3A;
  --color-text-muted: #6B6B6B;
  --color-success: #3E7C52;
  --color-line: rgba(15, 23, 42, 0.10);
  --color-line-light: rgba(255, 255, 255, 0.18);

  /* Typography */
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Type scale */
  --fs-hero: clamp(2.6rem, 6vw, 5.4rem);
  --fs-h1: clamp(2.2rem, 4.2vw, 3.6rem);
  --fs-h2: clamp(1.8rem, 3vw, 2.6rem);
  --fs-h3: clamp(1.3rem, 2vw, 1.7rem);
  --fs-lead: clamp(1.05rem, 1.4vw, 1.25rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.78rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;
  --space-2xl: 10rem;

  /* Layout */
  --container-max: 1240px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --shadow-soft: 0 20px 60px -20px rgba(15, 23, 42, 0.25);
  --shadow-card: 0 12px 32px -12px rgba(15, 23, 42, 0.18);
  --ease-signature: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 0.25s;
  --dur-med: 0.6s;
  --dur-slow: 1.1s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ---------- Base ---------- */
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  font-size: var(--fs-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-h1); }
h3 { font-size: var(--fs-h2); }
h4 { font-size: var(--fs-h3); }

p { max-width: 62ch; }
p.lead { font-size: var(--fs-lead); color: var(--color-text); max-width: 46ch; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

section { padding-block: var(--space-xl); position: relative; }
section.tight { padding-block: var(--space-lg); }
.bg-secondary { background: var(--color-secondary); }
.bg-primary { background: var(--color-primary); color: var(--color-secondary); }
.bg-primary h2, .bg-primary h3, .bg-primary h4 { color: var(--color-white); }

/* Focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ---------- Eyebrow / section headers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

.section-head {
  max-width: 680px;
  margin-bottom: var(--space-lg);
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-md);
  max-width: none;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2.1rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-signature), box-shadow var(--dur-fast) var(--ease-signature);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover { box-shadow: var(--shadow-card); }
.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary);
}
.btn-accent:hover { box-shadow: 0 12px 28px -10px rgba(200, 169, 106, 0.55); }
.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: var(--color-primary);
}
.bg-primary .btn-outline { color: var(--color-white); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }
.bg-primary .btn-outline:hover { background: var(--color-white); color: var(--color-primary); }
.btn-sm { padding: 0.65rem 1.4rem; font-size: 0.82rem; }

/* Ripple */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,0.45);
  pointer-events: none;
  animation: ripple 0.6s var(--ease-signature);
}
@keyframes ripple { to { transform: scale(3); opacity: 0; } }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding-block: 1.4rem;
  transition: background var(--dur-fast) ease, padding var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); }
.site-header.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--color-line);
  padding-block: 0.85rem;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.01em;
  transition: color var(--dur-fast) ease;
}
.logo span { color: var(--color-accent); }
.site-header.is-scrolled .logo, body.page-solid .logo { color: var(--color-primary); }

.main-nav { display: flex; align-items: center; gap: var(--space-lg); }
.main-nav ul { display: flex; gap: 2.1rem; }
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-white);
  position: relative;
  padding-block: 0.3rem;
  transition: color var(--dur-fast) ease;
}
.site-header.is-scrolled .main-nav a, body.page-solid .main-nav a { color: var(--color-dark-gray); }
.main-nav a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width var(--dur-fast) var(--ease-signature);
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 1rem; }
.icon-btn {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  color: var(--color-white);
  border: 1px solid var(--color-line-light);
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}
.site-header.is-scrolled .icon-btn, body.page-solid .icon-btn { color: var(--color-primary); border-color: var(--color-line); }
.icon-btn:hover { background: var(--color-accent); color: var(--color-primary); border-color: var(--color-accent); }

.nav-toggle {
  display: none;
  width: 38px; height: 38px;
  border: none; background: none;
  flex-direction: column; justify-content: center; gap: 5px;
}
.nav-toggle span { width: 100%; height: 1.5px; background: var(--color-white); transition: all var(--dur-fast) ease; }
.site-header.is-scrolled .nav-toggle span, body.page-solid .nav-toggle span { background: var(--color-primary); }

/* Non-hero pages get a solid header from the start */
body.page-solid .site-header { background: var(--color-white); box-shadow: 0 1px 0 var(--color-line); }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-primary); color: rgba(248,246,242,0.72); padding-block: var(--space-xl) var(--space-md); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(248,246,242,0.12);
}
.footer-brand .logo { color: var(--color-white); margin-bottom: 1rem; display: inline-block; }
.footer-brand p { color: rgba(248,246,242,0.65); font-size: 0.92rem; }
.footer-col h4 { color: var(--color-white); font-size: 1.05rem; margin-bottom: 1.1rem; }
.footer-col ul li { margin-bottom: 0.7rem; }
.footer-col a { font-size: 0.92rem; transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--color-accent); }
.footer-social { display: flex; gap: 0.7rem; margin-top: 1.2rem; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(248,246,242,0.25);
  display: inline-flex; align-items: center; justify-content: center;
}
.footer-social a:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: var(--space-md);
  font-size: 0.82rem;
  color: rgba(248,246,242,0.5);
  flex-wrap: wrap; gap: 1rem;
}
.footer-bottom a:hover { color: var(--color-accent); }

/* ---------- Floating actions ---------- */
.floating-actions {
  position: fixed;
  right: 1.4rem; bottom: 1.4rem;
  z-index: 400;
  display: flex; flex-direction: column; gap: 0.75rem;
}
.floating-actions a {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-fast) var(--ease-signature);
}
.floating-actions a:hover { transform: translateY(-3px); }
.fab-call { background: var(--color-primary); color: var(--color-white); }
.fab-whatsapp { background: #3E7C52; color: var(--color-white); }

.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px;
  background: var(--color-accent);
  z-index: 600; width: 0%;
}

.back-to-top {
  position: fixed; left: 1.4rem; bottom: 1.4rem; z-index: 400;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--color-white); color: var(--color-primary);
  border: 1px solid var(--color-line); box-shadow: var(--shadow-card);
  display: inline-flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: all var(--dur-fast) var(--ease-signature);
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ---------- Reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease-signature), transform 0.9s var(--ease-signature); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* ---------- Sticky mobile bar ---------- */
.mobile-sticky-bar {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 450;
  background: var(--color-white);
  border-top: 1px solid var(--color-line);
  box-shadow: 0 -8px 24px -12px rgba(15,23,42,0.18);
}
.mobile-sticky-bar .row { display: grid; grid-template-columns: 1fr 1fr; }
.mobile-sticky-bar a {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.95rem; font-weight: 700; font-size: 0.9rem;
}
.mobile-sticky-bar a.call { background: var(--color-primary); color: var(--color-white); }
.mobile-sticky-bar a.wa { background: var(--color-success); color: var(--color-white); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--color-primary); color: var(--color-white);
  padding: 0.8rem 1.2rem; z-index: 999;
}
.skip-link:focus { left: 1rem; top: 1rem; }