/* ===== CSS VARIABLES ===== */
:root {
  --bg: #f5f4f0;
  --bg2: #eceae3;
  --surface: #ffffff;
  --border: #d8d5cc;
  --text: #1a1a18;
  --text-muted: #6b6860;
  --accent: #2d6a4f;
  --accent2: #52b788;
  --accent3: #b7e4c7;
  --dna1: #2d6a4f;
  --dna2: #74c69d;
  --tile-bg: #ffffff;
  --nav-bg: rgba(245,244,240,0.92);
  --shadow: 0 4px 32px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.11);
  --radius: 18px;
  --hero-seq: rgba(45,106,79,0.30);
}
[data-theme="dark"] {
  --bg: #0f1510;
  --bg2: #151c16;
  --surface: #1a2419;
  --border: #2a3a2c;
  --text: #e8ede8;
  --text-muted: #7a9b7e;
  --accent: #52b788;
  --accent2: #95d5b2;
  --accent3: #2d6a4f;
  --tile-bg: #1a2419;
  --nav-bg: rgba(15,21,16,0.93);
  --shadow: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
  --hero-seq: rgba(82,183,136,0.09);
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.4s, color 0.4s;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== NAVBAR ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5vw;
  height: 64px;
  transition: background 0.4s, border-color 0.4s;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img {
  width: auto;
  height: 36px;
  object-fit: contain;
}
.nav-logo span {
  font-family: 'Poppins', sans-serif;
  font-weight: 100;
  color: var(--accent);
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}
.nav-links {
  display: flex; gap: 2rem; align-items: center;
  list-style: none;
}
.nav-links a {
  font-size: 0.88rem; font-weight: 500; letter-spacing: 0.02em;
  color: var(--text-muted);
  transition: color 0.2s;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--accent); }
.theme-toggle {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 50px; width: 48px; height: 26px;
  cursor: pointer; position: relative;
  display: flex; align-items: center; padding: 3px;
  transition: background 0.3s;
}
.theme-toggle::after {
  content: '';
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform 0.3s;
}
[data-theme="dark"] .theme-toggle::after { transform: translateX(22px); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all 0.3s;
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 80px 5vw 0;
}
.hero-left {
  flex: 0 0 50%; max-width: 50%;
  z-index: 2;
  padding-top: 2rem;
}
.hero-title {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.2rem;
  animation: fadeUp 0.8s 0.1s ease both;
}
.hero-title em {
  font-family: 'Oswald', sans-serif; color: var(--accent);
  font-style: normal; font-weight: 600;
  font-size: 1.3em;
}
.hero-tagline {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 600px;
  font-weight: 300;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s 0.2s ease both;
}
.hero-cta {
  display: flex; gap: 1rem; flex-wrap: wrap;
  animation: fadeUp 0.8s 0.3s ease both;
}
.btn-primary {
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px;
  padding: 12px 28px; font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  font-family: 'DM Sans', sans-serif;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(45,106,79,0.3); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 100px;
  padding: 12px 28px; font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: border-color 0.2s, color 0.2s;
  font-family: 'DM Sans', sans-serif;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.hero-right {
  flex: 0 0 50%; max-width: 50%;
  position: relative; height: 100vh;
  display: flex; align-items: center; justify-content: center;
}

/* ===== DNA CANVAS ===== */
#dna-canvas {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

/* ===== NUCLEOTIDE BG ===== */
.nucleotide-bg {
  position: absolute; inset: 0;
  overflow: hidden; z-index: 1;
  pointer-events: none;
}
.nuc-line {
  position: absolute; left: 0; right: 0;
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--hero-seq);
  white-space: nowrap;
  letter-spacing: 0.25em;
  animation: scrollSeq 18s linear infinite;
  user-select: none;
}
.nuc-line:nth-child(odd) { animation-direction: reverse; animation-duration: 22s; }
@keyframes scrollSeq {
  from { transform: translateX(0); }
  to { transform: translateX(-40%); }
}

/* ===== SECTION COMMONS ===== */
section { padding: 100px 5vw; }
.section-label {
  font-size: 0.75rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
  font-weight: 500; margin-bottom: 1rem;
  display: flex; align-items: center; gap: 10px;
}
.section-label::before {
  content: ''; display: inline-block;
  width: 24px; height: 2px; background: var(--accent);
}
.section-title {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600; line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.2rem;
}

/* ===== ABOUT ===== */
#about { background: var(--bg2); }
.about-inner {
  display: flex; align-items: center; gap: 6vw;
  max-width: 1200px; margin: 0 auto;
}
.about-text { flex: 1; }
.about-text .section-title { margin-bottom: 1.5rem; }
.about-body {
  font-size: 0.97rem; line-height: 1.85;
  color: var(--text-muted); font-weight: 300;
}
.about-stats {
  display: flex; gap: 2rem; margin-top: 2.5rem; flex-wrap: wrap;
}
.stat { text-align: left; }
.stat-num {
  font-family: 'Poppins', sans-serif; font-size: 2.2rem;
  font-weight: 600; color: var(--accent); display: block;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.about-image-wrap {
  flex: 0 0 380px; max-width: 380px;
  border-radius: 20px; overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover; 
  display: block;
}
.about-dna-art {
  width: 80px;
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.about-corner-badge {
  position: absolute; bottom: 20px; right: 20px;
  background: var(--surface); color: var(--text);
  border-radius: 14px; padding: 12px 18px;
  font-size: 0.78rem; font-weight: 500; box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.about-corner-badge strong { display: block; color: var(--accent); font-size: 1.1rem; }

/* ===== REELS SECTION ===== */
#reels {
  background: var(--bg);
  padding: 100px 5vw;
}
.reels-head {
  max-width: 1200px;
  margin: 0 auto 3.5rem;
}
.reels-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.reel-card {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 9/16;
  background: #000;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}
.reel-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}
.reel-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.reel-card:hover .reel-video {
  transform: scale(1.03);
}

/* Overlay */
.reel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.08) 0%,
    rgba(0,0,0,0.01) 40%,
    rgba(0,0,0,0.55) 100%
  );
  transition: background 0.3s;
}
.reel-card:hover .reel-overlay {
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.12) 0%,
    rgba(0,0,0,0.01) 40%,
    rgba(0,0,0,0.65) 100%
  );
}

/* Play/Pause icon */
.reel-play-icon {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 56px; height: 56px;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.reel-card.paused .reel-play-icon {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}
.reel-card:hover .reel-play-icon {
  opacity: 1;
}

/* Bottom info */
.reel-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.2rem 1rem 1rem;
  color: #fff;
  z-index: 2;
}
.reel-handle {
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
  display: flex; align-items: center; gap: 5px;
}
.reel-handle::before {
  content: '';
  display: inline-block;
  width: 18px; height: 18px;
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  border-radius: 5px;
  flex-shrink: 0;
}
.reel-caption {
  font-family: 'Poppins', sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.4;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* Mute button */
.reel-mute-btn {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 34px; height: 34px;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: #fff;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 3;
  transition: background 0.2s, transform 0.2s;
}
.reel-mute-btn:hover {
  background: var(--accent);
  transform: scale(1.1);
}

/* Progress bar */
.reel-progress {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  background: var(--accent);
  width: 0%;
  z-index: 4;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* Instagram badge */
.reels-ig-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2.5rem;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.reels-ig-badge a {
  color: var(--accent);
  font-weight: 500;
  transition: color 0.2s;
}
.reels-ig-badge a:hover { color: var(--accent2); }

/* Responsive */
@media (max-width: 900px) {
  .reels-grid {
    grid-template-columns: 1fr;
    max-width: 340px;
  }
}
@media (min-width: 901px) and (max-width: 1100px) {
  .reels-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== SERVICES ===== */
#services { background: var(--bg); }
.services-head { max-width: 1200px; margin: 0 auto 3.5rem; }
.services-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
}
.service-tile {
  background: var(--tile-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.2rem 2rem;
  position: relative; overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  cursor: default;
}
.service-tile:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent2);
}
.service-tile::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.service-tile:hover::before { transform: scaleX(1); }
.tile-icon {
  width: 54px; height: 54px;
  background: var(--bg2);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
  transition: transform 0.3s;
  border: 1px solid var(--border);
}
.service-tile:hover .tile-icon { transform: rotate(-8deg) scale(1.1); }
.tile-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.2rem; font-weight: 600;
  margin-bottom: 0.7rem; color: var(--text);
}
.tile-desc {
  font-size: 0.88rem; color: var(--text-muted);
  line-height: 1.7; font-weight: 300;
}
.tile-arrow {
  position: absolute; bottom: 1.5rem; right: 1.5rem;
  font-size: 1.1rem; color: var(--accent2);
  opacity: 0; transition: opacity 0.3s, transform 0.3s;
}
.service-tile:hover .tile-arrow { opacity: 1; transform: translateX(4px); }

/* ===== SERVICE MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.active {
  opacity: 1; pointer-events: all;
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2.4rem 2.2rem 2rem;
  max-width: 480px; width: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: translateY(30px) scale(0.97);
  transition: transform 0.35s cubic-bezier(.22,.68,0,1.2);
}
.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute; top: 1.1rem; right: 1.2rem;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 50%; width: 34px; height: 34px;
  font-size: 1rem; cursor: pointer; color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s;
}
.modal-close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.modal-icon {
  font-size: 2.4rem; margin-bottom: 0.8rem;
}
.modal-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem; font-weight: 600;
  color: var(--text); margin-bottom: 0.8rem;
}
.modal-desc {
  font-size: 0.92rem; color: var(--text-muted);
  line-height: 1.75; margin-bottom: 1.6rem;
  font-weight: 300;
}
.modal-actions {
  display: flex; gap: 0.8rem; flex-wrap: wrap;
}
.modal-btn {
  flex: 1; min-width: 120px;
  padding: 11px 18px;
  border-radius: 100px;
  font-size: 0.88rem; font-weight: 500;
  cursor: pointer; border: none;
  font-family: 'DM Sans', sans-serif;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  text-align: center;
}
.modal-btn-primary {
  background: var(--accent); color: #fff;
}
.modal-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45,106,79,0.3);
}
.modal-btn-secondary {
  background: var(--bg2); color: var(--text);
  border: 1px solid var(--border);
}
.modal-btn-secondary:hover {
  border-color: var(--accent); color: var(--accent);
  transform: translateY(-2px);
}

/* ===== BLOG ===== */
#blog { background: var(--bg2); }
.blog-head { max-width: 1200px; margin: 0 auto 3.5rem; }
.blog-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.blog-card {
  background: var(--tile-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex; flex-direction: column;
}
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.blog-thumb {
  height: 200px;
  overflow: hidden;
  border-radius: 18px 18px 0 0;
}
.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
[data-theme="dark"] .blog-thumb { background: linear-gradient(135deg, #151c16 60%, #2d6a4f 100%); }
.blog-body { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.blog-tag {
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); font-weight: 500; margin-bottom: 0.6rem;
}
.blog-title {
  font-family: 'Poppins', sans-serif; font-size: 1rem;
  font-weight: 600; color: var(--text);
  line-height: 1.4; margin-bottom: 0.6rem;
}
.blog-snippet { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; flex: 1; }
.blog-link {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.8rem; color: var(--accent); font-weight: 500;
  margin-top: 1rem; transition: gap 0.2s;
}
.blog-link:hover { gap: 9px; }

/* ===== REVIEWS ===== */
#reviews { background: var(--bg); }
.reviews-head { max-width: 1200px; margin: 0 auto 3.5rem; }
.reviews-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.review-card {
  background: var(--tile-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.review-card::before {
  content: '"';
  position: absolute; top: 1rem; right: 1.5rem;
  font-family: 'Poppins', sans-serif; font-size: 4rem;
  color: var(--accent3); line-height: 1;
  pointer-events: none;
}
[data-theme="dark"] .review-card::before { color: rgba(82,183,136,0.2); }
.review-stars { font-size: 0.9rem; margin-bottom: 0.8rem; letter-spacing: 2px; }
.review-text {
  font-family: 'Poppins', sans-serif; font-style: italic;
  font-size: 1rem; color: var(--text);
  line-height: 1.6; margin-bottom: 1.2rem;
}
.review-author {
  font-size: 0.8rem; color: var(--text-muted);
  font-weight: 500; letter-spacing: 0.02em;
}

/* ===== CONTACT ===== */
#contact { background: var(--bg2); }
.contact-inner {
  max-width: 900px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 5rem;
  align-items: start;
}
.contact-info .section-title { margin-bottom: 1rem; }
.contact-info p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 2rem; }
.contact-detail {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.88rem; color: var(--text-muted);
  margin-bottom: 1rem;
}
.contact-detail-icon {
  width: 36px; height: 36px;
  background: var(--bg); border-radius: 10px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.8rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.form-control {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 16px;
  font-family: 'DM Sans', sans-serif; font-size: 0.9rem;
  color: var(--text); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(45,106,79,0.12); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-control::placeholder { color: var(--border); }
.form-submit {
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px;
  padding: 14px 36px; font-size: 0.92rem; font-weight: 500;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s;
  font-family: 'DM Sans', sans-serif; align-self: flex-start;
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(45,106,79,0.35); }

/* ===== FOOTER ===== */
footer {
  background: var(--bg); border-top: 1px solid var(--border);
  text-align: center; padding: 2.5rem 5vw;
}
.footer-logo {
  font-family: 'Poppins', sans-serif; font-size: 1.5rem;
  font-weight: 600; color: var(--accent); margin-bottom: 0.5rem;
}
footer p { font-size: 0.82rem; color: var(--text-muted); }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== MOBILE NAV ===== */
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: var(--bg); padding: 100px 5vw 40px;
  flex-direction: column; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.6rem; font-family: 'Poppins', sans-serif;
  color: var(--text); font-weight: 400;
  border-bottom: 1px solid var(--border); padding-bottom: 1rem;
}
.mobile-menu a:hover { color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  #hero {
    flex-direction: column;
    padding-top: 90px;
    min-height: auto;
    padding-bottom: 2rem;
  }
  .hero-left {
    flex: unset; max-width: 100%; width: 100%;
    order: 1;
    z-index: 3;
    position: relative;
    padding-bottom: 1rem;
  }
  .hero-right {
    flex: unset; max-width: 100%; width: 100%;
    order: 2;
    height: 260px;
    position: relative;
  }
  #dna-canvas {
    width: 160px !important;
    height: 260px !important;
  }
  .about-inner { flex-direction: column-reverse; }
  .about-image-wrap { flex: unset; max-width: 100%; }
  .services-grid, .blog-grid, .reviews-grid { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
}
@media (min-width: 901px) and (max-width: 1200px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}