/* =============================================================
   BRIGHTLINE STUDIO — STARTER DEMO
   -------------------------------------------------------------
   Warm-neutral, terracotta accent.
   Photographer: Alex Whitfield (fictional).
   Scope: 5 pages, 1 language. Considered essentials only.
   ============================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
input, textarea, select, button { font: inherit; color: inherit; }

/* Tokens — Brightline brand */
:root {
  --bone:       #FBF7F2;
  --linen:      #F1E9DE;
  --clay:       #D9A382;
  --terracotta: #B85C38;
  --terracotta-2: #9D4A2A;
  --ink:        #1F1B17;
  --smoke:      #5C5046;
  --hairline:   #E5DCCE;

  --ff-display: "Fraunces", "Source Serif Pro", "Iowan Old Style", Georgia, serif;
  --ff-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ff-mono:    ui-monospace, "SF Mono", Menlo, monospace;

  --container: 1120px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --t-fast: 140ms;
  --t-med: 220ms;
  --t-slow: 360ms;
}

html { font-size: 16px; }
body {
  font-family: var(--ff-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--ff-display);
  font-weight: 500;
  letter-spacing: -0.012em;
  color: var(--ink);
  line-height: 1.12;
}
h1 { font-size: clamp(2.25rem, 1.6rem + 3vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }
p  { font-size: 1rem; line-height: 1.7; color: var(--smoke); max-width: 60ch; }

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 16px;
  font-weight: 600;
}
.lead {
  font-size: clamp(1.125rem, 1rem + .6vw, 1.4rem);
  line-height: 1.5;
  color: var(--smoke);
  font-weight: 400;
  max-width: 60ch;
}

a.link { color: var(--terracotta); border-bottom: 1px solid transparent; transition: border-color var(--t-fast) var(--ease); }
a.link:hover { border-bottom-color: var(--terracotta); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(48px, 6vw, 96px) 0; }
.section-tight { padding: clamp(40px, 4vw, 64px) 0; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251,247,242,.88);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.nav-brand {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 1.3rem;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.nav-brand span.dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--terracotta);
  border-radius: 50%;
  margin-left: 6px;
  vertical-align: middle;
}
.nav-links { display: none; gap: 28px; }
.nav-links a {
  font-size: 0.95rem;
  color: var(--ink);
  font-weight: 500;
  padding: 8px 0;
  transition: color var(--t-fast) var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--terracotta); }
@media (min-width: 800px) { .nav-links { display: flex; } }

.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--ink);
}
@media (min-width: 800px) { .nav-toggle { display: none; } }
.mobile-menu { display: none; border-top: 1px solid var(--hairline); padding: 12px 0 24px; background: var(--bone); }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 12px 8px; font-size: 1.05rem; color: var(--ink); border-radius: 8px; }
.mobile-menu a:hover { background: var(--linen); }
@media (min-width: 800px) { .mobile-menu { display: none !important; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  border-radius: 8px;
  border: 1px solid transparent;
  text-decoration: none;
  min-height: 44px;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--terracotta);
  color: var(--bone);
  border-color: var(--terracotta);
}
.btn-primary:hover { background: var(--terracotta-2); border-color: var(--terracotta-2); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline);
}
.btn-ghost:hover { background: var(--linen); }
.btn-arrow::after { content: "→"; transition: transform var(--t-fast) var(--ease); }
.btn-arrow:hover::after { transform: translateX(3px); }
.btn-link { background: transparent; border: 0; color: var(--terracotta); padding: 0; min-height: auto; }
.btn-link:hover { color: var(--terracotta-2); transform: none; text-decoration: underline; }

/* Hero */
.hero {
  padding: clamp(56px, 8vw, 128px) 0 clamp(48px, 6vw, 96px);
  background: linear-gradient(180deg, var(--bone) 0%, var(--linen) 100%);
  border-bottom: 1px solid var(--hairline);
}
.hero-inner {
  display: grid; gap: 32px; align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 1000px) { .hero-inner { grid-template-columns: 1.1fr 1fr; gap: 64px; } }
.hero h1 em { color: var(--terracotta); font-style: italic; }
.hero .lead { margin-top: 20px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-art {
  background: var(--linen);
  border: 1px solid var(--hairline);
  border-radius: 18px;
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
}
.hero-art::after {
  content: "";
  position: absolute; inset: 18px;
  border-radius: 12px;
  background:
    radial-gradient(circle at 30% 35%, rgba(184,92,56,.45) 0 22%, transparent 24%),
    radial-gradient(circle at 70% 60%, rgba(217,163,130,.55) 0 30%, transparent 32%),
    radial-gradient(circle at 50% 80%, rgba(31,27,23,.18) 0 18%, transparent 22%),
    linear-gradient(180deg, rgba(255,255,255,.35), transparent 40%);
}

/* Sections */
.section-head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { font-size: 1.1rem; }

/* Cards */
.card {
  background: var(--bone);
  border: 1px solid var(--hairline);
  border-radius: 14px;
  padding: 28px;
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.card:hover { border-color: var(--clay); transform: translateY(-2px); }

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 720px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .gallery { grid-template-columns: repeat(3, 1fr); } }
.gallery .frame {
  background: var(--linen);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  aspect-ratio: 4 / 5;
  position: relative;
  overflow: hidden;
}
.gallery .frame::after {
  content: attr(data-label);
  position: absolute; left: 12px; bottom: 12px;
  font-size: 0.75rem; font-weight: 600;
  background: rgba(31,27,23,.7); color: var(--bone);
  padding: 4px 10px; border-radius: 999px;
  letter-spacing: 0.04em;
}
.gallery .frame::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 35% 40%, rgba(184,92,56,.30) 0 18%, transparent 22%),
    radial-gradient(circle at 70% 55%, rgba(217,163,130,.40) 0 22%, transparent 28%),
    radial-gradient(circle at 50% 75%, rgba(31,27,23,.18) 0 16%, transparent 22%),
    linear-gradient(180deg, rgba(255,255,255,.4), transparent 50%);
}

/* Forms */
.form { display: grid; gap: 16px; max-width: 540px; }
.form-row { display: grid; gap: 8px; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--ink); }
.form-row label .req { color: var(--terracotta); margin-left: 2px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--hairline); border-radius: 8px;
  background: var(--bone); font-size: 1rem; color: var(--ink);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--terracotta);
  box-shadow: 0 0 0 4px rgba(184,92,56,.16);
}
.form-row textarea { min-height: 140px; resize: vertical; }
.form-help { font-size: 0.85rem; color: var(--smoke); }
.form-success {
  display: none;
  padding: 20px;
  border: 1px solid #C9E5D6; background: #F0F8F4;
  border-radius: 12px;
  color: #1F6B45;
  font-size: 1rem;
}
.form-success.show { display: block; }

/* Footer */
.site-footer {
  background: var(--ink); color: #C8BFB1;
  padding: 64px 0 32px;
  margin-top: 96px;
}
.site-footer a { color: #C8BFB1; }
.site-footer a:hover { color: var(--bone); }
.footer-grid {
  display: grid; gap: 32px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08);
}
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-col h5 {
  font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bone); margin-bottom: 14px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col li a { font-size: 0.95rem; }
.footer-meta {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  padding-top: 24px;
  font-size: 0.85rem; color: #8A8174;
}

/* Page hero (sub-pages) */
.page-hero {
  padding: clamp(56px, 6vw, 96px) 0 clamp(40px, 4vw, 64px);
  background: linear-gradient(180deg, var(--bone) 0%, var(--linen) 100%);
  border-bottom: 1px solid var(--hairline);
}
.page-hero h1 em { color: var(--terracotta); font-style: italic; }
.page-hero .lead { margin-top: 16px; }

/* Demo return strip */
.demo-strip {
  background: var(--terracotta);
  color: var(--bone);
  text-align: center;
  padding: 12px 16px;
  font-size: 0.9rem;
}
.demo-strip a { color: var(--bone); border-bottom: 1px solid currentColor; }
.demo-strip strong { font-weight: 600; }

/* Reveal */
.reveal {
  opacity: 0; transform: translateY(8px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

::selection { background: var(--terracotta); color: var(--bone); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.flex { display: flex; }
.row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.row-between { justify-content: space-between; }
.mt-5 { margin-top: 24px; }
.mt-6 { margin-top: 32px; }
.mt-7 { margin-top: 48px; }
.mb-5 { margin-bottom: 24px; }
/* AI-translation footer disclosure */
.footer-meta-divider { margin: 0 8px; color: rgba(255,255,255,.18); }
.footer-meta-extra { font-size: 0.8rem; color: #B3A89A; }
@media (max-width: 640px) {
  .footer-meta-divider { display: block; margin: 4px 0; height: 0; }
  .footer-meta-extra { display: block; margin-top: 4px; }
}