/* ==========================================
   DREW.VIZ — Architectural Visualization Studio
   v3.0 — Fixed: crops, lightbox, animations
   ========================================== */

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

:root {
  --bg: #0a0a0a;
  --bg-alt: #0f0f0f;
  --bg-card: #141414;
  --text: #f0f0f0;
  --text-dim: #888888;
  --accent: #c9a96e;
  --accent-hover: #dbb978;
  --accent-glow: rgba(201, 169, 110, 0.15);
  --border: #1e1e1e;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: var(--font); }

/* Skip link (accessibility) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.85rem;
  z-index: 10000;
  transition: top 0.2s;
}
.skip-link:focus { top: 0.5rem; }

/* ==========================================
   NAVIGATION
   ========================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 10, 10, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav__logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  position: relative;
}
.nav__logo span { color: var(--accent); }
.nav__logo::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.nav__links { display: flex; list-style: none; gap: 2.25rem; }
.nav__links a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color var(--transition);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav__links a:hover, .nav__links a.active { color: var(--text); }
.nav__links a:hover::after, .nav__links a.active::after { width: 100%; }

.lang-toggle {
  padding: 0.3rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}
.nav__hamburger span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: var(--transition);
}

/* ==========================================
   HERO — Video Background
   ========================================== */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 6rem 3rem;
  position: relative;
  overflow: hidden;
}

.hero__video-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
}
.hero__video-bg video {
  width: 100%; height: 100%;
  object-fit: cover;
}
/* Dark gradient overlay for text readability */
.hero__overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    linear-gradient(to top, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.5) 35%, rgba(10,10,10,0.15) 60%, rgba(10,10,10,0.3) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 750px;
}

.hero__label {
  font-size: 0.72rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-weight: 500;
  opacity: 0;
  animation: fadeUp 1s ease 0.3s forwards;
}

.hero__title {
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -2px;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 40px rgba(0,0,0,0.5);
  opacity: 0;
  animation: fadeUp 1s ease 0.5s forwards;
}
.hero__title strong { font-weight: 700; }

.hero__desc {
  font-size: 1.05rem;
  color: rgba(240,240,240,0.8);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 1s ease 0.7s forwards;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  opacity: 0;
  animation: fadeUp 1s ease 0.9s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2.25rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
.btn--primary { background: var(--accent); color: var(--bg); }
.btn--primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn--outline { background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,0.3); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }

.hero__scroll {
  position: absolute;
  bottom: 2rem; right: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
  font-size: 0.63rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  animation: float 2.5s ease-in-out infinite;
  z-index: 2;
}
.hero__scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ==========================================
   SECTIONS
   ========================================== */
.section { padding: 7rem 3rem; }
.section--alt { background: var(--bg-alt); }

.section__header { margin-bottom: 4rem; }
.section__header--center { text-align: center; }

.section__label {
  font-size: 0.7rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  display: block;
  font-weight: 500;
}
.section__title {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 300;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.section__title strong { font-weight: 700; }
.section__subtitle {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-top: 1rem;
  max-width: 550px;
  line-height: 1.7;
}
.section__header--center .section__subtitle { margin-left: auto; margin-right: auto; }
.container { max-width: 1300px; margin: 0 auto; }

.section__cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 3.5rem;
  flex-wrap: wrap;
}

/* ==========================================
   GALLERY — Masonry-like, no crop
   ========================================== */
.portfolio__filter {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.45rem 1.25rem;
  font-size: 0.73rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active { border-color: var(--accent); color: var(--accent); }

.gallery {
  columns: 3;
  column-gap: 0.5rem;
}

.gallery__item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  break-inside: avoid;
  margin-bottom: 0.5rem;
  background: var(--bg-card);
  /* stagger animation */
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.gallery__item.visible {
  opacity: 1;
  transform: translateY(0);
}

.gallery__item img {
  width: 100%;
  height: auto; /* NO CROP - respect original ratio */
  display: block;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1), filter 0.4s ease;
}
.gallery__item:hover img {
  transform: scale(1.03);
  filter: brightness(0.7);
}

.gallery__overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2.5rem 1.25rem 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}
.gallery__item:hover .gallery__overlay { opacity: 1; transform: translateY(0); }
.gallery__overlay h3 { font-size: 0.9rem; font-weight: 600; letter-spacing: 0.5px; }
.gallery__overlay p { font-size: 0.72rem; color: var(--text-dim); margin-top: 0.15rem; }

/* ==========================================
   DESIGN PROCESS TIMELINE
   ========================================== */
.timeline {
  position: relative;
  padding-left: 3rem;
  margin-top: 3rem;
}
/* Vertical line */
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.1rem;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--border) 50%, transparent);
}

.timeline__item {
  position: relative;
  margin-bottom: 3.5rem;
  display: flex;
  gap: 0;
}
.timeline__item:last-child { margin-bottom: 0; }

.timeline__marker {
  position: absolute;
  left: -3rem;
  top: 0;
  width: 2.2rem;
  height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.timeline__num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  background: var(--bg-alt);
  width: 2.2rem;
  height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
}

.timeline__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  width: 100%;
  align-items: center;
}

.timeline__image {
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
}
.timeline__image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease, filter 0.4s ease;
}
.timeline__image:hover img {
  transform: scale(1.03);
  filter: brightness(0.85);
}

.timeline__info h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}
.timeline__info p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 400px;
}

/* Alternate layout: even items flip image/text */
.timeline__item:nth-child(even) .timeline__content {
  direction: rtl;
}
.timeline__item:nth-child(even) .timeline__content > * {
  direction: ltr;
}

/* ==========================================
   360° VIEWER
   ========================================== */
.viewer-360 { margin-top: 2rem; }
.viewer-360__container {
  width: 100%; height: 500px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  margin-bottom: 1rem;
  overflow: hidden;
}
.viewer-360__selector { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.viewer-360__btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.73rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
}
.viewer-360__btn:hover, .viewer-360__btn.active { border-color: var(--accent); color: var(--accent); }

/* ==========================================
   VIDEOS
   ========================================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.video-card:hover { border-color: var(--accent); }
.video-card video { width: 100%; display: block; }
.video-card__info { padding: 1rem 1.25rem; }
.video-card__title { font-size: 0.9rem; font-weight: 600; }
.video-card__desc { font-size: 0.78rem; color: var(--text-dim); margin-top: 0.2rem; }

/* ==========================================
   ABOUT
   ========================================== */
.about__grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 4rem;
  align-items: start;
}
.about__photo img {
  width: 100%;
  filter: grayscale(0.1);
  border: 1px solid var(--border);
}
.about__text p { color: var(--text-dim); margin-bottom: 1.25rem; font-size: 0.95rem; line-height: 1.8; }
.about__stats {
  display: flex; gap: 3rem;
  margin: 2.5rem 0; padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat__number {
  font-size: 2.2rem; font-weight: 700;
  color: var(--accent);
  display: block; line-height: 1;
}
.stat__label {
  font-size: 0.68rem; letter-spacing: 2px;
  text-transform: uppercase; color: var(--text-dim);
  margin-top: 0.35rem;
}
.about__tools-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tool-chip {
  padding: 0.5rem 1rem;
  font-size: 0.73rem; letter-spacing: 1px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  transition: var(--transition);
}
.tool-chip:hover { border-color: var(--accent); color: var(--accent); }

/* ==========================================
   SERVICES
   ========================================== */
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.service-card {
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.5s ease;
}
.service-card:hover::before { width: 100%; }
.service-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.service-card__icon { font-size: 1.5rem; margin-bottom: 1rem; display: block; color: var(--accent); }
.service-card__title { font-size: 1rem; font-weight: 600; margin-bottom: 0.6rem; }
.service-card__desc { font-size: 0.85rem; color: var(--text-dim); line-height: 1.7; }

/* ==========================================
   CONTACT
   ========================================== */
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact__info h3 { font-size: 1.4rem; font-weight: 600; margin-bottom: 0.75rem; }
.contact__info > p { color: var(--text-dim); line-height: 1.8; margin-bottom: 2rem; font-size: 0.95rem; }
.contact__methods { display: flex; flex-direction: column; gap: 0.75rem; }
.contact-method {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.contact-method:hover { border-color: var(--accent); }
.contact-method__icon { font-size: 1.1rem; }
.contact-method__label { font-size: 0.63rem; text-transform: uppercase; letter-spacing: 2px; color: var(--text-dim); }
.contact-method__value { font-weight: 500; font-size: 0.9rem; margin-top: 0.1rem; }

.contact__form { display: flex; flex-direction: column; gap: 0.85rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-size: 0.68rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); }
.form-group input, .form-group textarea, .form-group select {
  padding: 0.8rem 1rem; background: var(--bg-card);
  border: 1px solid var(--border); color: var(--text);
  font-family: var(--font); font-size: 0.9rem;
  transition: var(--transition); outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 100px; }

/* Form success state */
.contact__form { position: relative; }
.form--sent .form-row,
.form--sent .form-group,
.form--sent button[type="submit"] { opacity: 0; pointer-events: none; transition: opacity 0.4s ease; }

.form-success {
  display: none; position: absolute; inset: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 1rem;
  text-align: center;
}
.form-success.active { display: flex; animation: fadeInUp 0.6s ease forwards; }
.form-success__checkmark { width: 70px; height: 70px; color: var(--accent); }
.form-success__checkmark svg circle {
  stroke-dasharray: 157; stroke-dashoffset: 157;
  animation: circleDraw 0.6s 0.2s ease forwards;
}
.form-success__checkmark svg path {
  stroke-dasharray: 40; stroke-dashoffset: 40;
  animation: checkDraw 0.4s 0.7s ease forwards;
}
.form-success__title { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.form-success__text { font-size: 0.95rem; color: var(--text-dim); max-width: 300px; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes circleDraw {
  to { stroke-dashoffset: 0; }
}
@keyframes checkDraw {
  to { stroke-dashoffset: 0; }
}

/* ==========================================
   LIGHTBOX
   ========================================== */
.lightbox {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.97);
  justify-content: center; align-items: center;
  padding: 2rem;
}
.lightbox.active { display: flex; }
.lightbox__close {
  position: absolute; top: 1.25rem; right: 1.5rem;
  width: 40px; height: 40px;
  background: transparent; border: 1px solid rgba(255,255,255,0.2);
  color: var(--text); font-size: 1.1rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 10;
}
.lightbox__close:hover { border-color: var(--accent); color: var(--accent); }
.lightbox__img { max-width: 92vw; max-height: 88vh; object-fit: contain; }
.lightbox__info { position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%); text-align: center; }
.lightbox__info h3 { font-size: 0.95rem; font-weight: 600; }
.lightbox__info p { font-size: 0.78rem; color: var(--text-dim); }
.lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px;
  background: transparent; border: 1px solid rgba(255,255,255,0.15);
  color: var(--text); font-size: 1.2rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.lightbox__nav:hover { border-color: var(--accent); color: var(--accent); }
.lightbox__prev { left: 1.5rem; }
.lightbox__next { right: 1.5rem; }
.lightbox__counter {
  position: absolute;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--text-dim);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  padding: 2rem 3rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.75rem; color: var(--text-dim);
}
.footer__social { display: flex; gap: 1.5rem; }
.footer__social a {
  color: var(--text-dim); transition: color var(--transition);
  font-size: 0.73rem; letter-spacing: 1px; text-transform: uppercase;
}
.footer__social a:hover { color: var(--accent); }

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

/* ==========================================
   ANIMATIONS
   ========================================== */
.reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Stagger gallery items */
.gallery__item:nth-child(1) { transition-delay: 0s; }
.gallery__item:nth-child(2) { transition-delay: 0.08s; }
.gallery__item:nth-child(3) { transition-delay: 0.16s; }
.gallery__item:nth-child(4) { transition-delay: 0.24s; }
.gallery__item:nth-child(5) { transition-delay: 0.32s; }
.gallery__item:nth-child(6) { transition-delay: 0.4s; }
.gallery__item:nth-child(7) { transition-delay: 0.48s; }
.gallery__item:nth-child(8) { transition-delay: 0.56s; }
.gallery__item:nth-child(9) { transition-delay: 0.64s; }

/* Floating particles */
.particles {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}
@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
  .gallery { columns: 2; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .timeline__content { grid-template-columns: 1fr; gap: 1rem; }
  .timeline__item:nth-child(even) .timeline__content { direction: ltr; }
}

@media (max-width: 768px) {
  .nav { padding: 1rem 1.5rem; }
  .nav__logo { font-size: 1.3rem; }
  .nav__links {
    display: none; position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg); flex-direction: column;
    justify-content: center; align-items: center;
    gap: 2rem; z-index: 999;
  }
  .nav__links.open { display: flex; }
  .nav__links a { font-size: 1rem; }
  .lang-toggle { z-index: 1001; margin-left: auto; margin-right: 0.75rem; }
  .nav__hamburger { display: flex; z-index: 1001; }
  .nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav__hamburger.open span:nth-child(2) { opacity: 0; }
  .nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero { padding: 4rem 1.5rem; }
  .section { padding: 4rem 1.5rem; }

  .gallery { columns: 1; }
  .timeline { padding-left: 2.5rem; }
  .timeline__marker { left: -2.5rem; }
  .timeline__content { grid-template-columns: 1fr; gap: 1rem; }
  .timeline__item:nth-child(even) .timeline__content { direction: ltr; }
  .about__grid { grid-template-columns: 1fr; gap: 2rem; }
  .about__photo { text-align: center; }
  .about__photo img { max-width: 220px; margin: 0 auto; }
  .about__stats { flex-wrap: wrap; gap: 2rem; }
  .services__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .viewer-360__container { height: 300px; }
  .footer { flex-direction: column; gap: 1rem; text-align: center; }
  .hero__cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}