/* =====================================================
   onbeluga.io – Photography & Darkroom Accessories
   Stylesheet
   ===================================================== */

/* ---------- Reset & base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #faf8f5;
  --color-surface:   #ffffff;
  --color-dark:      #111010;
  --color-dark-alt:  #1c1a18;
  --color-text:      #2c2825;
  --color-text-muted:#7a7268;
  --color-accent:    #c0392b;
  --color-accent-2:  #e67e22;
  --color-tag-bg:    #ede8e0;
  --color-tag-text:  #6b5e50;
  --font-sans:       'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif:      Georgia, 'Times New Roman', serif;
  --radius:          8px;
  --shadow-sm:       0 2px 8px rgba(0,0,0,.06);
  --shadow-md:       0 6px 24px rgba(0,0,0,.10);
  --transition:      0.25s ease;
  --max-width:       1200px;
  --section-pad:     96px 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: #a93226;
  border-color: #a93226;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(192,57,43,.35);
}

.btn-secondary {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-color: rgba(255,255,255,.5);
  backdrop-filter: blur(4px);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.22);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
  padding: 10px 22px;
}
.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

/* ---------- Navigation ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(250,248,245,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
}
.logo span {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-links a:hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1a1410 0%, #2e1f14 40%, #3d2b1f 70%, #1a1410 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 20% 60%, rgba(192,57,43,.18) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(230,126,34,.12) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,.04) 2px,
    rgba(0,0,0,.04) 4px
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 100px;
  max-width: 680px;
}

.hero-eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-2);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.15;
  color: #f5ede3;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(245,237,227,.7);
  max-width: 500px;
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(245,237,227,.5);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(245,237,227,.5), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ---------- Section shared ---------- */
.section {
  padding: var(--section-pad);
}

.section-header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---------- Dark section ---------- */
.section-dark {
  background: var(--color-dark);
  color: #e8dfd0;
}

.section-dark .section-header h2 {
  color: #e8dfd0;
}

.section-dark .section-header p {
  color: rgba(232,223,208,.6);
}

.section-dark .section-tag {
  background: rgba(255,255,255,.08);
  color: rgba(232,223,208,.7);
}

/* ---------- Product Grid ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--color-surface);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.dark-card {
  background: var(--color-dark-alt);
  border: 1px solid rgba(255,255,255,.06);
}
.dark-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}

.product-image {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.product-image svg {
  width: 80px;
  height: 80px;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.3));
}

.product-info {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.product-info h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
}

.dark-card .product-info h3 {
  color: #e8dfd0;
}

.product-info p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.dark-card .product-info p {
  color: rgba(232,223,208,.55);
}

.product-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: 20px;
  align-self: flex-start;
  margin-top: auto;
}

.dark-card .product-tag {
  background: rgba(255,255,255,.08);
  color: rgba(232,223,208,.65);
}

/* ---------- About ---------- */
.section-about {
  background: var(--color-surface);
  border-top: 1px solid rgba(0,0,0,.06);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text .section-tag {
  margin-bottom: 16px;
}

.about-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  line-height: 1.2;
  font-weight: 400;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 18px;
  max-width: 480px;
}

.about-text .btn {
  margin-top: 10px;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.about-stat {
  background: var(--color-bg);
  border-radius: 12px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.about-stat:first-child {
  grid-column: 1 / -1;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 400;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---------- Contact ---------- */
.section-contact {
  background: var(--color-bg);
  border-top: 1px solid rgba(0,0,0,.06);
}

.contact-layout {
  max-width: 680px;
}

.contact-layout .section-header {
  text-align: left;
  margin-inline: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid rgba(0,0,0,.12);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(192,57,43,.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(0,0,0,.3);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(232,223,208,.7);
  padding-top: 64px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-brand .logo {
  color: #e8dfd0;
  margin-bottom: 12px;
  display: inline-block;
}
.footer-brand p {
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 56px;
}

.footer-links h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(232,223,208,.4);
  margin-bottom: 14px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(232,223,208,.65);
  transition: color var(--transition);
}
.footer-links a:hover {
  color: #e8dfd0;
}

.footer-bottom {
  padding-block: 24px;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(232,223,208,.35);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 680px) {
  :root {
    --section-pad: 64px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    inset: 68px 0 0;
    background: rgba(250,248,245,.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    font-size: 1.1rem;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .about-visual {
    grid-template-columns: 1fr;
  }
  .about-stat:first-child {
    grid-column: auto;
  }

  .footer-links {
    gap: 32px;
  }
}