/* ═══════════════════════════════════════
   shared.css — Wilmer Paints site styles
   Used by: index.html, portfolio.html, about.html, contact.html
═══════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&display=swap');

:root {
  --bg:           #faf8f5;
  --bg-soft:      #f3efe8;
  --bg-card:      #ffffff;
  --text:         #1a1814;
  --text-muted:   #8a8278;
  --accent:       #b85c38;
  --accent-light: rgba(184,92,56,0.10);
  --border:       rgba(26,24,20,0.09);
  --shadow:       0 2px 20px rgba(26,24,20,0.07);
  --shadow-lg:    0 8px 40px rgba(26,24,20,0.12);
  --font:         'Caveat', cursive;
  --nav-h:        72px;
  --max-w:        1160px;
  --radius:       12px;
  --tr:           0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: clamp(22px, 2.4vw, 27px);
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}
a   { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ── NAV ── */
nav {
  position: fixed; inset: 0 0 auto 0;
  height: var(--nav-h); z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 0 44px;
  transition: background var(--tr), box-shadow var(--tr);
}
nav.scrolled {
  background: rgba(250,248,245,0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border);
}
nav.always-bg {
  background: rgba(250,248,245,0.97);
  box-shadow: 0 1px 0 var(--border);
}

.nav-logo { display: flex; align-items: center; transition: opacity var(--tr); }
.nav-logo:hover { opacity: 0.65; }

/* Two logo images — swap based on nav state */
.nav-logo .logo-dark  { display: block;  height: 52px; width: auto; mix-blend-mode: multiply; }
.nav-logo .logo-white { display: none;   height: 52px; width: auto; mix-blend-mode: screen; }

/* Transparent nav (homepage before scroll) → show white logo */
nav:not(.scrolled):not(.always-bg) .logo-dark  { display: none; }
nav:not(.scrolled):not(.always-bg) .logo-white { display: block; }

.nav-links {
  display: flex; align-items: center; justify-content: center;
  gap: 36px; list-style: none;
}
.nav-links a {
  font-size: 1em; font-weight: 500; color: var(--text-muted);
  transition: color var(--tr); position: relative;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0;
  height: 2px; background: var(--accent); border-radius: 2px;
}

/* Transparent nav → white links and socials */
nav:not(.scrolled):not(.always-bg) .nav-links a {
  color: rgba(250,248,245,0.8);
}
nav:not(.scrolled):not(.always-bg) .nav-links a:hover,
nav:not(.scrolled):not(.always-bg) .nav-links a.active {
  color: var(--accent);
}
nav:not(.scrolled):not(.always-bg) .nav-links a.active::after {
  background: var(--accent);
}
nav:not(.scrolled):not(.always-bg) .nav-social a {
  color: rgba(250,248,245,0.8);
}
nav:not(.scrolled):not(.always-bg) .nav-social a:hover {
  color: var(--accent);
}

.nav-social { display: flex; align-items: center; gap: 24px; justify-content: flex-end; }
.nav-social a {
  color: var(--text-muted); transition: color var(--tr);
  display: flex; align-items: center;
}
.nav-social a:hover { color: var(--accent); }
.nav-social svg { width: 30px; height: 30px; fill: currentColor; }

/* ── SHARED SECTION ── */
.section-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 44px; }
.section-label {
  font-size: 0.6em; font-weight: 600; letter-spacing: 3px;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.section-title {
  font-family: var(--font);
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 600; line-height: 1.05; margin-bottom: 18px;
}
.divider {
  width: 40px; height: 2px; background: var(--accent);
  margin-bottom: 40px; border-radius: 2px;
}

/* ── PAGE HEADER (inner pages) ── */
.page-header {
  padding: calc(var(--nav-h) + 64px) 0 56px;
  background: var(--bg);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border); padding: 26px 44px;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--text-muted); font-size: 0.75em; background: var(--bg);
}
.footer-social { display: flex; gap: 18px; }
.footer-social a { color: var(--text-muted); transition: color var(--tr); display: flex; }
.footer-social a:hover { color: var(--accent); }
.footer-social svg { width: 16px; height: 16px; fill: currentColor; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; font-family: var(--font);
  font-size: 0.85em; font-weight: 600; letter-spacing: 1px;
  border-radius: 50px; cursor: pointer;
  transition: background var(--tr), color var(--tr), opacity var(--tr), transform var(--tr);
}
.btn-outline {
  border: 1px solid var(--accent); color: var(--accent); background: transparent;
}
.btn-outline:hover { background: var(--accent); color: #fff; }
.btn-solid {
  background: var(--accent); color: #fff; border: none;
}
.btn-solid:hover { opacity: 0.88; transform: translateY(-1px); }

/* ── CONTACT FORM ── */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact-info p { color: var(--text-muted); line-height: 1.85; margin-bottom: 40px; max-width: 370px; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-row { display: flex; flex-direction: column; gap: 3px; }
.contact-row-label { font-size: 0.65em; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); }
.contact-row-value a:hover { color: var(--accent); }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-size: 0.65em; letter-spacing: 2px; text-transform: uppercase; color: var(--text-muted); }
.form-group input,
.form-group textarea {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text); padding: 13px 15px;
  font-size: 1em; font-family: var(--font); font-weight: 400;
  outline: none; resize: vertical; border-radius: var(--radius);
  transition: border-color var(--tr), box-shadow var(--tr);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); opacity: 0.7; }

/* ── HAMBURGER BUTTON ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none; border: none;
  cursor: pointer; padding: 4px;
  z-index: 200;
}
.nav-hamburger span {
  display: block; width: 100%; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--tr), opacity var(--tr), background var(--tr);
}
/* White hamburger lines when nav is transparent (over dark video) */
nav:not(.scrolled):not(.always-bg) .nav-hamburger span { background: #faf8f5; }

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE DRAWER ── */
.nav-drawer {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: rgba(250,248,245,0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr);
}
.nav-drawer.open {
  opacity: 1;
  pointer-events: all;
}
.nav-drawer a {
  font-size: clamp(28px, 7vw, 40px);
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--tr);
}
.nav-drawer a:hover,
.nav-drawer a.active { color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  nav { grid-template-columns: auto 1fr auto; gap: 16px; padding: 0 22px; }
  .nav-links { gap: 20px; }
  .nav-links a { font-size: 0.9em; }
}
@media (max-width: 660px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-drawer { display: flex; }
  /* 3 columns: logo | hamburger | socials */
  nav { grid-template-columns: 1fr auto 1fr; padding: 0 22px; }
  .nav-logo    { order: 1; justify-content: flex-start; }
  .nav-hamburger { order: 2; }
  .nav-social  { order: 3; justify-content: flex-end; }
  .nav-links   { order: 0; }
  .section-inner { padding: 0 22px; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  footer { padding: 22px; flex-direction: column; gap: 14px; text-align: center; }
  /* Centre about image on mobile */
  .about-image-wrap { display: flex; justify-content: center; }
}