/* insinporfi.agency — slate + copper */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Cormorant+Garamond:wght@400;500;600&display=swap');

:root {
  --slate: #3d4f5f;
  --slate-dark: #2a3844;
  --slate-light: #5a6d7d;
  --copper: #b87333;
  --copper-light: #d4a574;
  --off-white: #f7f5f2;
  --text: #1e2a33;
  --muted: #6a7a86;
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Cormorant Garamond', serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--text); background: var(--off-white); line-height: 1.7; font-weight: 400; }
a { color: var(--copper); text-decoration: none; }
a:hover { color: var(--slate-dark); }

.layout { min-height: 100vh; }

/* Sidebar nav */
.sidebar {
  background: var(--slate-dark);
  color: var(--off-white);
  padding: 40px 28px;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
  width: 220px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.sidebar .mark {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.sidebar .mark span { color: var(--copper); }
.sidebar .sub { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.2em; opacity: 0.6; margin-bottom: 48px; }
.side-nav { list-style: none; flex: 1; }
.side-nav li { margin-bottom: 4px; }
.side-nav a {
  display: block;
  padding: 10px 0;
  color: rgba(247,245,242,0.7);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-left: 2px solid transparent;
  padding-left: 12px;
}
.side-nav a:hover, .side-nav a.on { color: var(--copper-light); border-left-color: var(--copper); }

.main {
  margin-left: 220px;
  min-width: 0;
  width: calc(100% - 220px);
}

/* Hero */
.hero-full {
  height: 85vh;
  background: linear-gradient(to bottom, rgba(42,56,68,0.4), rgba(42,56,68,0.75)),
    url('../assets/archviz-hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: flex-end;
  padding: 60px 56px;
  color: var(--off-white);
}
.hero-full h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 500;
  line-height: 1.1;
  max-width: 700px;
}
.hero-full p { margin-top: 16px; font-size: 1.05rem; opacity: 0.85; max-width: 480px; font-weight: 300; }

.panel { padding: 72px 56px; }
.panel-dark { background: var(--slate-dark); color: var(--off-white); }
.panel-light { background: var(--off-white); }
.panel-white { background: #fff; }

.heading-sm { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--copper); margin-bottom: 12px; font-weight: 600; }
.heading-lg { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 500; margin-bottom: 20px; line-height: 1.2; }
.text-muted { color: var(--muted); max-width: 560px; }

/* Portfolio grid */
.port-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-top: 40px; }
.port-item {
  aspect-ratio: 4/3;
  background: var(--slate);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--off-white);
  transition: background 0.3s;
}
.port-item:hover { background: var(--slate-light); }
.port-item h3 { font-family: var(--font-serif); font-size: 1.3rem; margin-bottom: 4px; }
.port-item p { font-size: 0.8rem; opacity: 0.7; }

/* Process timeline */
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 40px; }
.tl-step { border-top: 2px solid var(--copper); padding-top: 20px; }
.tl-step .num { font-family: var(--font-serif); font-size: 1.8rem; color: var(--copper); margin-bottom: 8px; }
.tl-step h4 { font-size: 0.9rem; margin-bottom: 6px; font-weight: 600; }
.tl-step p { font-size: 0.82rem; color: var(--muted); }

/* Services row */
.svc-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 36px; }
.svc-box h3 { font-family: var(--font-serif); font-size: 1.25rem; margin-bottom: 10px; color: var(--slate-dark); }
.svc-box p { font-size: 0.9rem; color: var(--muted); }
.panel-dark .svc-box h3 { color: var(--off-white); }
.panel-dark .svc-box p { color: rgba(247, 245, 242, 0.78); }
.panel-dark .tl-step p { color: rgba(247, 245, 242, 0.72); }
.panel-dark .text-muted { color: rgba(247, 245, 242, 0.78); }
.panel-dark .heading-lg { color: var(--off-white); }

/* Page top */
.page-top { padding: 100px 56px 48px; background: var(--slate); color: var(--off-white); }
.page-top h1 { font-family: var(--font-serif); font-size: 2.8rem; font-weight: 500; }

.prose { max-width: 680px; }
.prose h2 { font-family: var(--font-serif); font-size: 1.5rem; margin: 32px 0 12px; }
.prose p { margin-bottom: 14px; color: var(--muted); }
.prose ul { margin: 0 0 14px 20px; color: var(--muted); }

.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--copper);
  color: var(--off-white);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}
.btn:hover { background: var(--slate-dark); color: var(--off-white); }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 0.8rem; font-weight: 500; margin-bottom: 4px; }
.form-row input, .form-row textarea, .form-row select {
  width: 100%; max-width: 480px; padding: 10px 12px;
  border: 1px solid #ccc; background: #fff; font-family: inherit;
}
.form-row textarea { min-height: 120px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }

/* Footer */
.foot {
  background: var(--slate-dark);
  color: rgba(247,245,242,0.6);
  padding: 40px 56px;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.foot a { color: rgba(247,245,242,0.6); }
.foot a:hover { color: var(--copper-light); }
.contact-email a { color: var(--copper-light); }
.foot-legal { display: flex; gap: 20px; }

#cookie-banner {
  position: fixed; bottom: 0; left: 220px; right: 0;
  background: var(--slate); color: var(--off-white);
  padding: 16px 56px; z-index: 999; display: none;
}
#cookie-banner.active { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
#cookie-banner p { font-size: 0.85rem; }
.cookie-actions button { padding: 8px 16px; border: none; cursor: pointer; font-family: inherit; font-weight: 500; margin-left: 8px; }
#cookie-accept { background: var(--copper); color: #fff; }
#cookie-decline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.3) !important; }

@media (max-width: 1100px) {
  .timeline { grid-template-columns: repeat(3, 1fr); }
  .svc-row { grid-template-columns: repeat(2, 1fr); }
  .port-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .sidebar { position: relative; width: 100%; height: auto; overflow-y: visible; }
  .main { margin-left: 0; width: 100%; }
  #cookie-banner { left: 0; }
  .port-grid, .timeline, .svc-row, .contact-grid { grid-template-columns: 1fr; }
  .panel, .hero-full, .page-top, .foot { padding-left: 24px; padding-right: 24px; }
  .hero-full { height: 60vh; }
  .side-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 8px; }
  .side-nav li { margin-bottom: 0; }
  .side-nav a { border-left: none; padding-left: 0; }
}