/* css/styles.css */

/* ── Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Barlow:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --black:         #0a0a0a;
  --red:           #D42B2B;
  --red-dark:      #a81f1f;
  --white:         #FFFFFF;
  --off-white:     #F5F4F0;
  --grey:          #888888;
  --surface:       #1a1a1a;
  --border-subtle: #2d2d2d;
  --font-display:  'Bebas Neue', sans-serif;
  --font-body:     'Barlow', sans-serif;
}

/* ── Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background-color: var(--black);
  color: var(--white);
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: 0.02em; }

/* ── Grain texture overlay ──────────────────────────────── */
.grain {
  position: relative;
}
.grain::after {
  content: '';
  /* Contents of .grain containers must set z-index >= 2 to appear above this overlay */
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  opacity: 0.04;
  pointer-events: none;
  z-index: 1;
}

/* ── Ken Burns hero animation ───────────────────────────── */
@keyframes kenBurns {
  0%   { transform: scale(1);    }
  100% { transform: scale(1.08); }
}

.hero-bg {
  animation: kenBurns 12s ease-out forwards;
}

/* ── Staggered hero text reveals ────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.hero-sub  { animation: fadeUp 0.7s ease forwards 0.3s; opacity: 0; }
.hero-h1   { animation: fadeUp 0.7s ease forwards 0.7s; opacity: 0; }
.hero-cta  { animation: fadeUp 0.7s ease forwards 1.1s; opacity: 0; }

/* ── Scroll-triggered fade-in ───────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Red accent button ──────────────────────────────────── */
.btn-red {
  display: inline-block;
  background-color: var(--red);
  color: var(--white);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  font-size: 1.1rem;
  padding: 0.75rem 2.5rem;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.15s ease;
}
.btn-red:hover {
  background-color: var(--red-dark);
  transform: translateY(-2px);
}
.btn-red:focus-visible {
  outline: 3px solid var(--white);
  outline-offset: 3px;
}

/* ── Section heading style ──────────────────────────────── */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  letter-spacing: 0.05em;
}
.section-heading span {
  color: var(--red);
}

/* ── Red rule divider ───────────────────────────────────── */
.red-rule {
  width: 60px;
  height: 4px;
  background-color: var(--red);
  margin: 1rem 0 2rem;
}

/* ── Nav ────────────────────────────────────────────────── */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
  background-color: transparent;
}
#main-nav.scrolled {
  background-color: var(--black);
  box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}
.nav-link {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--white);
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background-color: var(--red);
  transition: width 0.2s ease;
}
.nav-link:hover { color: var(--red); }
.nav-link:hover::after { width: 100%; }
.nav-link:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

/* ── Service cards ──────────────────────────────────────── */
.service-card {
  position: relative;
  overflow: hidden;
  cursor: default;
  min-height: 420px;
}
.service-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.service-card:hover img { transform: scale(1.05); }
.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 60%, transparent 100%);
  transition: background 0.4s ease;
}
.service-card:hover .service-card-overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
}
.service-card-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2rem;
  z-index: 2;
}
.service-card-content h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.05em;
  color: var(--white);
}
.service-card-content p {
  font-family: var(--font-body);
  color: var(--off-white);
  margin-top: 0.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── Before/After Slider ────────────────────────────────── */
.ba-slider {
  position: relative;
  overflow: hidden;
  cursor: col-resize;
  user-select: none;
  border-radius: 2px;
}
.ba-slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ba-after {
  position: absolute;
  inset: 0;
}
.ba-before {
  position: relative;
  z-index: 1;
  clip-path: inset(0 50% 0 0);
  transition: none;
}
.ba-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  background-color: var(--red);
  z-index: 2;
  cursor: col-resize;
}
.ba-handle::before {
  content: '◀ ▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--red);
  color: var(--white);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.4rem;
  border-radius: 2px;
  white-space: nowrap;
}
.ba-label {
  position: absolute;
  top: 1rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: var(--white);
  background-color: rgba(0,0,0,0.55);
  padding: 0.25rem 0.75rem;
  z-index: 3;
  transition: opacity 0.1s ease;
}
.ba-label-before { left: 1rem; }
.ba-label-after  { right: 1rem; }

/* ── Gallery grid ───────────────────────────────────────── */
.gallery-grid {
  columns: 1;
  column-gap: 1rem;
}
@media (min-width: 640px)  { .gallery-grid { columns: 2; } }
@media (min-width: 1024px) { .gallery-grid { columns: 3; } }

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1rem;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.03); }

/* ── Filter bar ─────────────────────────────────────────── */
.filter-btn {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  padding: 0.5rem 1.5rem;
  border: 2px solid var(--grey);
  color: var(--grey);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--red);
  color: var(--white);
  background-color: var(--red);
}
.filter-btn:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ── Lightbox ───────────────────────────────────────────── */
#lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  cursor: pointer;
}
#lightbox.hidden { display: none; }
#lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 0 60px rgba(0,0,0,0.8);
}
#lightbox .close-btn {
  position: absolute;
  top: 1.5rem; right: 2rem;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--white);
  cursor: pointer;
  background: none; border: none;
  line-height: 1;
}
#lightbox .close-btn:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 4px;
}

/* ── Contact form ───────────────────────────────────────── */
.form-input {
  width: 100%;
  background-color: var(--surface);
  border: 1px solid var(--border-subtle);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.875rem 1rem;
  transition: border-color 0.2s;
}
.form-input:focus-visible {
  border-color: var(--red);
  outline: 2px solid var(--red);
  outline-offset: 0;
}
.form-input::placeholder { color: var(--grey); }

/* ── Hamburger ──────────────────────────────────────────── */
.hamburger { display: flex; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span {
  display: block; width: 26px; height: 2px;
  background-color: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile menu ────────────────────────────────────────── */
#mobile-menu {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem 1.5rem 2rem;
  background-color: var(--black);
  border-top: 1px solid var(--border-subtle);
}
#mobile-menu.open { display: flex; }
#mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--white);
  text-decoration: none;
}
#mobile-menu a:hover { color: var(--red); }

/* ── Reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .hero-bg { animation: none; }
  .hero-sub, .hero-h1, .hero-cta { animation: none; opacity: 1; }
  .fade-in { transition: none; }
}