/* ==========================================================================
   BK Schutting — Organic Editorial Design
   Typography: DM Serif Display (display) + Outfit (body)
   Palette: Warm amber wood tones, deep charcoal, cream whites
   ========================================================================== */

/* ===== Custom Properties ===== */
:root {
  /* Core palette — drawn from wood grain and earth */
  --color-cream: #faf6f0;
  --color-warm-white: #f2ece3;
  --color-sand: #e8dfd2;
  --color-amber: #c8956c;
  --color-amber-deep: #a87040;
  --color-rust: #8b5e3c;
  --color-charcoal: #2a2522;
  --color-charcoal-light: #3d3632;
  --color-ink: #1a1714;
  --color-muted: #8a7e72;
  --color-border: #d9cfc2;

  /* Accent */
  --color-accent: #5a7247;
  --color-accent-light: #6d8a57;
  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #1fb855;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --border-radius: 4px;
  --border-radius-lg: 8px;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease-smooth);
  --transition-slow: 0.6s var(--ease-out);
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-amber-deep);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-rust);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.15;
  font-weight: 400;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.3rem; }

em {
  font-style: italic;
  color: var(--color-amber-deep);
}

/* ===== Utility ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

.section-header {
  margin-bottom: var(--space-xl);
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-amber);
  display: block;
  margin-bottom: var(--space-xs);
}

.section-label--light {
  color: var(--color-sand);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-ink);
  line-height: 1.15;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.875rem 2rem;
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background-color: var(--color-amber-deep);
  color: var(--color-cream);
}

.btn--primary:hover {
  background-color: var(--color-rust);
  color: var(--color-cream);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(168, 112, 64, 0.3);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-cream);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn--outline:hover {
  background-color: var(--color-cream);
  color: var(--color-charcoal);
  border-color: var(--color-cream);
}

.btn--dark {
  background-color: var(--color-charcoal);
  color: var(--color-cream);
  padding: 1rem 2.5rem;
}

.btn--dark:hover {
  background-color: var(--color-ink);
  color: var(--color-cream);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26, 23, 20, 0.25);
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: white;
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  color: white;
  transform: translateY(-2px);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-sm) 0;
  transition: all var(--transition);
  background: linear-gradient(180deg, rgba(26, 23, 20, 0.7) 0%, transparent 100%);
}

.nav.scrolled {
  background: rgba(26, 23, 20, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.75rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav__logo-mark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-amber);
  line-height: 1;
}

.nav__logo-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.05em;
}

.nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav__links a {
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--color-amber);
  transition: width var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-cream);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

.nav__cta {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.nav__cta:hover {
  background: rgba(255, 255, 255, 0.15) !important;
}

.nav__cta::after {
  display: none !important;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-cream);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

@media (max-width: 768px) {
  .nav__toggle { display: block; }

  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: rgba(26, 23, 20, 0.98);
    backdrop-filter: blur(12px);
    padding: var(--space-sm) var(--space-md);
    gap: 0;
  }

  .nav__links.open { display: flex; }

  .nav__links a {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav__links a::after { display: none; }

  .nav__cta {
    margin-top: var(--space-xs);
    text-align: center;
    display: block;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-cream);
  background-color: var(--color-ink);
  overflow: hidden;
}

.hero__slides {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 2s var(--ease-smooth);
  transform: scale(1.05);
}

.hero__slide.active {
  opacity: 1;
  transform: scale(1);
  transition: opacity 2s var(--ease-smooth), transform 8s var(--ease-out);
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg,
      rgba(26, 23, 20, 0.3) 0%,
      rgba(26, 23, 20, 0.15) 40%,
      rgba(26, 23, 20, 0.4) 100%
    );
  mix-blend-mode: normal;
}

.hero__grain::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  padding: var(--space-xl) var(--space-sm);
  animation: fadeInUp 1s var(--ease-out) 0.3s both;
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-amber);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 400;
  color: var(--color-cream);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero__title em {
  color: var(--color-amber);
  font-style: italic;
}

.hero__divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-amber), transparent);
  margin: 0 auto var(--space-md);
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  opacity: 0.8;
  margin-bottom: var(--space-lg);
}

.hero__buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeInUp 1s var(--ease-out) 1s both;
}

.hero__scroll span {
  font-family: var(--font-body);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.5);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-amber), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .hero { min-height: 100svh; }
  .hero__scroll { display: none; }
}

/* ===== Diensten ===== */
.section--diensten {
  background-color: var(--color-cream);
}

.diensten__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.dienst-card {
  padding: var(--space-lg);
  border-right: 1px solid var(--color-border);
  position: relative;
  transition: background-color var(--transition);
}

.dienst-card:last-child {
  border-right: none;
}

.dienst-card:hover {
  background-color: var(--color-warm-white);
}

.dienst-card__number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-sand);
  line-height: 1;
  margin-bottom: var(--space-md);
  transition: color var(--transition);
}

.dienst-card:hover .dienst-card__number {
  color: var(--color-amber);
}

.dienst-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.dienst-card__text {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.dienst-card__line {
  width: 30px;
  height: 2px;
  background-color: var(--color-amber);
  margin-top: var(--space-md);
  transition: width var(--transition);
}

.dienst-card:hover .dienst-card__line {
  width: 60px;
}

@media (max-width: 1024px) {
  .diensten__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dienst-card {
    border-bottom: 1px solid var(--color-border);
  }

  .dienst-card:nth-child(2) { border-right: none; }
  .dienst-card:nth-child(3),
  .dienst-card:nth-child(4) { border-bottom: none; }
}

@media (max-width: 480px) {
  .diensten__grid {
    grid-template-columns: 1fr;
  }

  .dienst-card {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .dienst-card:last-child { border-bottom: none; }
}

/* ===== Materialen ===== */
.section--materialen {
  background-color: var(--color-charcoal);
  color: var(--color-cream);
  position: relative;
  overflow: hidden;
}

.section--materialen::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 149, 108, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.section--materialen .section-title {
  color: var(--color-cream);
}

.materialen__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.materiaal-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition);
}

.materiaal-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-amber);
  transform: translateY(-4px);
}

.materiaal-card__icon {
  color: var(--color-amber);
  margin-bottom: var(--space-md);
}

.materiaal-card__name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.materiaal-card__text {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .materialen__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .materialen__grid { grid-template-columns: 1fr; }
}

/* ===== Recent Werk ===== */
.section--werk {
  background-color: var(--color-warm-white);
}

.recent-werk__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.project-card {
  text-decoration: none;
  color: inherit;
  display: block;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--color-cream);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(42, 37, 34, 0.12);
  color: inherit;
}

.project-card__image-wrap {
  position: relative;
  overflow: hidden;
}

.project-card__image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image {
  transform: scale(1.05);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 23, 20, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card__overlay span {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cream);
  border: 1.5px solid var(--color-cream);
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card__body {
  padding: var(--space-md);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.project-card__tag {
  font-size: 0.8rem;
  color: var(--color-muted);
  font-weight: 500;
}

.recent-werk__cta {
  text-align: center;
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .recent-werk__grid { grid-template-columns: 1fr; }
  .project-card__image { height: 220px; }
}

/* ===== Over Bart ===== */
.section--about {
  background-color: var(--color-cream);
}

.over-bart__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-xl);
  align-items: center;
}

.over-bart__image-col {
  position: relative;
}

.over-bart__placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(145deg, var(--color-charcoal), var(--color-charcoal-light));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.over-bart__placeholder span {
  font-family: var(--font-display);
  font-size: 8rem;
  color: var(--color-amber);
  opacity: 0.3;
}

.over-bart__badge {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  background: var(--color-amber-deep);
  color: var(--color-cream);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  box-shadow: 0 8px 25px rgba(168, 112, 64, 0.3);
}

.over-bart__text {
  padding: var(--space-lg) 0;
}

.over-bart__text h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.over-bart__divider {
  width: 50px;
  height: 2px;
  background: var(--color-amber);
  margin-bottom: var(--space-md);
}

.over-bart__text p {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
}

.over-bart__highlight {
  font-family: var(--font-display);
  font-size: 1.2rem !important;
  font-style: italic;
  color: var(--color-charcoal) !important;
}

@media (max-width: 768px) {
  .over-bart__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .over-bart__image-col {
    max-width: 100%;
    margin: 0 auto;
  }

  .over-bart__placeholder {
    margin-left: -1.5rem;
    min-width: 280px;
    min-height: 360px;
  }

  .over-bart__placeholder span {
    font-size: 8rem;
  }

  .over-bart__badge {
    right: -1.5rem;
    bottom: -2.5rem;
    font-size: 1.2rem;
    padding: 1rem 1.75rem;
  }

  .over-bart__divider {
    margin-left: auto;
    margin-right: auto;
  }
}

/* ===== Contact ===== */
.section--contact {
  background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-ink) 100%);
  color: var(--color-cream);
  position: relative;
  overflow: hidden;
}

.section--contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-amber), transparent);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.contact__text .section-title {
  color: var(--color-cream);
  margin-bottom: var(--space-md);
}

.contact__text p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.05rem;
}

.contact__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  color: var(--color-cream);
  transition: all var(--transition);
  text-decoration: none;
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-amber);
  transform: translateX(8px);
  color: var(--color-cream);
}

.contact-card--whatsapp:hover {
  border-color: var(--color-whatsapp);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-amber);
}

.contact-card--whatsapp .contact-card__icon {
  color: var(--color-whatsapp);
}

.contact-card strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.contact-card span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 768px) {
  .contact__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .contact-card {
    text-align: left;
  }

  .contact-card:hover {
    transform: translateX(0) translateY(-2px);
  }
}

/* ===== Footer ===== */
.footer {
  background-color: var(--color-ink);
  color: rgba(255, 255, 255, 0.4);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
}

.footer__brand .nav__logo-mark {
  font-size: 1.3rem;
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__links a {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-amber);
}

.footer__copy {
  font-size: 0.8rem;
  margin-top: var(--space-sm);
}

.footer__copy a {
  color: rgba(255, 255, 255, 0.4);
}

.footer__copy a:hover {
  color: var(--color-amber);
}

/* ===== Sticky Mobile CTA ===== */
.sticky-cta {
  display: none;
}

@media (max-width: 768px) {
  .sticky-cta {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background-color: var(--color-ink);
    padding: 0.75rem var(--space-sm);
    gap: var(--space-xs);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .sticky-cta .btn {
    flex: 1;
    justify-content: center;
    padding: 0.75rem;
    font-size: 0.85rem;
  }

  body {
    padding-bottom: 70px;
  }
}

/* ===== Portfolio Page ===== */
.portfolio-header {
  padding-top: calc(80px + var(--space-xl));
  padding-bottom: var(--space-lg);
}

.portfolio-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.portfolio-header p {
  color: var(--color-muted);
  margin-top: var(--space-xs);
  font-size: 1.05rem;
}

.filter {
  display: flex;
  gap: var(--space-xs);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  padding: 0 var(--space-sm);
}

.filter__btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius);
  border: 1.5px solid var(--color-border);
  background-color: transparent;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}

.filter__btn:hover {
  border-color: var(--color-amber);
  color: var(--color-amber-deep);
}

.filter__btn.active {
  background-color: var(--color-charcoal);
  border-color: var(--color-charcoal);
  color: var(--color-cream);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.portfolio-card {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(42, 37, 34, 0.1);
}

.portfolio-card.hidden {
  display: none;
}

.portfolio-card__image {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-card:hover .portfolio-card__image {
  transform: scale(1.03);
}

.portfolio-card__body {
  padding: var(--space-sm) var(--space-md);
  padding-bottom: var(--space-md);
}

.portfolio-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.portfolio-card__tags {
  font-size: 0.8rem;
  color: var(--color-muted);
  font-weight: 500;
}

@media (max-width: 1024px) {
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .portfolio__grid { grid-template-columns: 1fr; }
  .portfolio-card__image { height: 220px; }
}

/* ===== Lightbox ===== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(26, 23, 20, 0.95);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.lightbox.open {
  display: flex;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--border-radius);
}

.lightbox__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-cream);
  font-size: 1.5rem;
  cursor: pointer;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: background var(--transition);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--color-cream);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__nav--prev { left: var(--space-md); }
.lightbox__nav--next { right: var(--space-md); }