/* ─────────────────────────────────────────
   Alotin Engineering — Main Stylesheet v2
   ───────────────────────────────────────── */

:root {
  --black:      #080808;
  --dark:       #101010;
  --dark2:      #181818;
  --dark3:      #202020;
  --dark4:      #2a2a2a;
  --blue:       #00b4d8;
  --blue2:      #0096c7;
  --blue3:      #0077a8;
  --blue-glow:  rgba(0,180,216,0.14);
  --white:      #f2f2f2;
  --gray:       #7a7a7a;
  --mid-gray:   #999;
  --light-gray: #ccc;
  --gold:       #e8b84b;
  --nav-h:      80px;
  --nav-h-sm:   64px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font-family: 'Rajdhani', sans-serif; overflow-x: hidden; }

/* ─── NAVBAR ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 52px;
  background: rgba(8,8,8,0.88);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0,180,216,0.18);
  transition: height 0.3s, background 0.3s;
}
nav.scrolled { height: var(--nav-h-sm); background: rgba(8,8,8,0.97); }

.nav-logo { display: flex; align-items: center; gap: 16px; text-decoration: none; flex-shrink: 0; }
.nav-logo img { height: 50px; width: auto; transition: height 0.3s; }
nav.scrolled .nav-logo img { height: 40px; }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1; gap: 4px; }
.nav-logo-text .brand { font-family: 'Bebas Neue', sans-serif; font-size: 26px; letter-spacing: 3px; color: var(--white); }
.nav-logo-text .sub { font-size: 11px; letter-spacing: 3.5px; color: var(--blue); text-transform: uppercase; font-weight: 600; }

.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
  color: var(--light-gray); text-decoration: none;
  font-size: 16px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase;
  padding: 6px 14px; transition: color 0.2s; position: relative; white-space: nowrap;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 14px;
  width: calc(100% - 28px); height: 1.5px; background: var(--blue);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s;
}
.nav-links a:hover { color: var(--blue); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  background: var(--blue) !important; color: var(--black) !important;
  border-radius: 2px; padding: 10px 22px !important;
  font-weight: 700 !important; font-size: 15px !important; letter-spacing: 1px !important;
  transition: background 0.2s, transform 0.2s !important;
}
.nav-cta:hover { background: var(--blue2) !important; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.nav-toggle { display: none; flex-direction: column; gap: 6px; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 28px; height: 2px; background: var(--white); transition: all 0.3s; border-radius: 2px; }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ─── HERO ─── */
#hero {
  position: relative; height: 100vh; min-height: 720px;
  display: flex; align-items: center; overflow: hidden;
  padding: 0 80px; padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(110deg, rgba(8,8,8,0.96) 0%, rgba(8,8,8,0.72) 55%, rgba(8,8,8,0.35) 100%),
    url('../images/photo_19.jpeg') center 60% / cover no-repeat;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(0,180,216,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(0,180,216,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  animation: gridPan 24s linear infinite;
}
@keyframes gridPan { from { background-position: 0 0; } to { background-position: 56px 56px; } }
.hero-stripe {
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(to bottom, transparent 0%, var(--blue) 30%, var(--blue) 70%, transparent 100%);
  animation: stripePulse 4s ease-in-out infinite;
}
@keyframes stripePulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
.hero-content { position: relative; z-index: 2; max-width: 680px; animation: fadeUp 0.9s ease-out both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(32px); } to { opacity: 1; transform: translateY(0); } }

.eyebrow { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.eyebrow-line { width: 44px; height: 2px; background: var(--blue); flex-shrink: 0; }
.eyebrow span { font-size: 12px; letter-spacing: 4px; text-transform: uppercase; color: var(--blue); font-weight: 700; }

.hero-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(64px, 9vw, 120px); line-height: 0.88; letter-spacing: 3px; margin-bottom: 30px; }
.hero-title .accent { color: var(--blue); }
.hero-desc { font-size: 19px; font-weight: 300; color: #b0b0b0; max-width: 520px; line-height: 1.65; margin-bottom: 48px; font-family: 'Inter', sans-serif; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.btn-primary {
  background: var(--blue); color: var(--black);
  padding: 15px 40px; font-family: 'Rajdhani', sans-serif;
  font-size: 15px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  text-decoration: none; border: none; cursor: pointer; transition: all 0.2s; display: inline-block;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.btn-primary:hover { background: var(--blue2); transform: translateY(-2px); }
.btn-secondary {
  background: transparent; color: var(--white);
  padding: 15px 40px; font-family: 'Rajdhani', sans-serif;
  font-size: 15px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  text-decoration: none; border: 1px solid rgba(255,255,255,0.22); transition: all 0.2s; display: inline-block;
}
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); }

.hero-stats {
  position: absolute; bottom: 56px; right: 80px;
  display: flex; z-index: 2; animation: fadeUp 0.9s 0.25s ease-out both;
  border: 1px solid rgba(0,180,216,0.2); background: rgba(8,8,8,0.7); backdrop-filter: blur(8px);
}
.stat { padding: 22px 36px; text-align: center; border-right: 1px solid rgba(0,180,216,0.18); }
.stat:last-child { border-right: none; }
.stat-num { font-family: 'Bebas Neue', sans-serif; font-size: 52px; color: var(--blue); line-height: 1; display: block; }
.stat-label { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--gray); margin-top: 4px; font-weight: 600; }

/* ─── SECTION COMMONS ─── */
section { padding: 100px 80px; }
.section-head { margin-bottom: 60px; }
.section-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(44px, 5vw, 68px); line-height: 1; letter-spacing: 2px; margin: 14px 0 20px; }
.section-divider { width: 56px; height: 3px; background: var(--blue); }
.eyebrow-sm { display: flex; align-items: center; gap: 12px; }
.eyebrow-sm-line { width: 28px; height: 2px; background: var(--blue); flex-shrink: 0; }
.eyebrow-sm span { font-size: 11px; letter-spacing: 4px; text-transform: uppercase; color: var(--blue); font-weight: 700; }

/* ─── SERVICES ─── */
#services { background: var(--dark); position: relative; overflow: hidden; }
#services::before {
  content: 'SERVICES'; position: absolute; right: -30px; top: 50%;
  transform: translateY(-50%) rotate(90deg);
  font-family: 'Bebas Neue', sans-serif; font-size: 200px; color: rgba(255,255,255,0.02);
  letter-spacing: 12px; pointer-events: none; white-space: nowrap;
}
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.service-card {
  background: var(--dark2); padding: 40px 32px; position: relative;
  border-top: 2px solid transparent; transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.service-card:hover { transform: translateY(-5px); border-top-color: var(--blue); background: var(--dark3); }
.service-num { position: absolute; top: 20px; right: 20px; font-family: 'Bebas Neue', sans-serif; font-size: 52px; color: rgba(255,255,255,0.04); line-height: 1; }
.service-icon { width: 52px; height: 52px; background: var(--blue-glow); border: 1px solid rgba(0,180,216,0.28); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; font-size: 22px; }
.service-title { font-family: 'Bebas Neue', sans-serif; font-size: 28px; letter-spacing: 1px; margin-bottom: 12px; }
.service-desc { font-size: 15px; color: #7a7a7a; line-height: 1.72; font-family: 'Inter', sans-serif; font-weight: 300; }

/* ─── EQUIPMENT ─── */
#equipment { background: var(--black); }
.equipment-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3px; }
.equip-item { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.equip-item.tall { grid-row: span 2; aspect-ratio: auto; }
.equip-item img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.58) saturate(0.75); transition: filter 0.5s, transform 0.5s; display: block; }
.equip-item:hover img { filter: brightness(0.85) saturate(1.1); transform: scale(1.05); }
.equip-overlay { position: absolute; inset: 0; background: linear-gradient(transparent 50%, rgba(0,0,0,0.88)); display: flex; flex-direction: column; justify-content: flex-end; padding: 28px 30px; }
.equip-tag { font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--blue); font-weight: 700; margin-bottom: 6px; }
.equip-name { font-family: 'Bebas Neue', sans-serif; font-size: 30px; letter-spacing: 1px; line-height: 1; }

/* ─── PROJECTS ─── */
#projects { background: var(--dark2); padding: 100px 80px; }
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.project-card { background: var(--dark3); overflow: hidden; transition: transform 0.35s; }
.project-card:hover { transform: translateY(-6px); }
.project-card.featured { grid-column: span 2; display: grid; grid-template-columns: 1.35fr 1fr; }
.project-img { position: relative; overflow: hidden; }
.project-img img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.85); transition: filter 0.4s, transform 0.5s; display: block; }
.project-card:not(.featured) .project-img { aspect-ratio: 16/10; }
.project-card:hover .project-img img { filter: brightness(1) saturate(1.05); transform: scale(1.04); }
.project-info { padding: 36px; display: flex; flex-direction: column; justify-content: center; }
.project-tag { font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--blue); font-weight: 700; margin-bottom: 10px; }
.project-title { font-family: 'Bebas Neue', sans-serif; font-size: 32px; letter-spacing: 1px; line-height: 1.05; margin-bottom: 12px; }
.project-desc { font-size: 15px; color: var(--mid-gray); line-height: 1.7; font-family: 'Inter', sans-serif; font-weight: 300; }
.project-meta { display: flex; gap: 28px; margin-top: 22px; flex-wrap: wrap; }
.project-meta-item { display: flex; flex-direction: column; gap: 3px; }
.meta-label { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--gray); font-weight: 700; }
.meta-value { font-size: 16px; font-weight: 600; color: var(--white); }

/* ─── GALLERY (compact) ─── */
#gallery { background: var(--dark); padding: 100px 60px; }
.gallery-header { padding: 0 8px; margin-bottom: 40px; }
.gallery-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; }
.gallery-item { position: relative; overflow: hidden; aspect-ratio: 1; cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.7) saturate(0.8); transition: filter 0.35s, transform 0.35s; display: block; }
.gallery-item:hover img { filter: brightness(1) saturate(1.05); transform: scale(1.08); }
.gallery-item::after { content: ''; position: absolute; inset: 0; background: var(--blue); opacity: 0; mix-blend-mode: color; transition: opacity 0.3s; }
.gallery-item:hover::after { opacity: 0.18; }
.gallery-zoom { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 2; opacity: 0; transition: opacity 0.3s; }
.gallery-item:hover .gallery-zoom { opacity: 1; }
.gallery-zoom-icon { width: 34px; height: 34px; border: 1.5px solid rgba(255,255,255,0.75); border-radius: 50%; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); background: rgba(0,0,0,0.2); }
.gallery-zoom-icon svg { width: 15px; height: 15px; fill: none; stroke: #fff; stroke-width: 2; }

/* ─── CLIENTS ─── */
#clients { background: var(--black); padding: 100px 80px; }
.clients-intro p { font-size: 17px; color: var(--mid-gray); line-height: 1.75; font-family: 'Inter', sans-serif; font-weight: 300; margin-top: 20px; max-width: 560px; }
.clients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-top: 52px; }
.client-card { background: var(--dark2); padding: 36px 32px; border-left: 3px solid transparent; transition: border-color 0.3s, background 0.3s; }
.client-card:hover { border-left-color: var(--blue); background: var(--dark3); }
.client-type-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--blue-glow); border: 1px solid rgba(0,180,216,0.25); padding: 5px 14px; margin-bottom: 18px; }
.client-type-badge span { font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--blue); font-weight: 700; }
.client-name { font-family: 'Bebas Neue', sans-serif; font-size: 26px; letter-spacing: 1px; margin-bottom: 10px; line-height: 1.1; }
.client-desc { font-size: 14px; color: var(--mid-gray); line-height: 1.7; font-family: 'Inter', sans-serif; font-weight: 300; }
.client-detail { display: flex; align-items: center; gap: 8px; margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.06); font-size: 13px; color: var(--gray); font-family: 'Inter', sans-serif; }
.client-detail span { color: var(--light-gray); font-weight: 500; }

.testimonials { margin-top: 60px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.testimonial { background: var(--dark2); padding: 32px; position: relative; }
.testimonial::before { content: '\201C'; position: absolute; top: 12px; left: 22px; font-family: 'Bebas Neue', sans-serif; font-size: 80px; color: rgba(0,180,216,0.14); line-height: 1; pointer-events: none; }
.testimonial-text { font-size: 15px; color: #8a8a8a; line-height: 1.75; font-family: 'Inter', sans-serif; font-weight: 300; font-style: italic; margin-bottom: 22px; padding-top: 20px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; background: var(--blue-glow); border: 1px solid rgba(0,180,216,0.28); display: flex; align-items: center; justify-content: center; font-family: 'Bebas Neue', sans-serif; font-size: 18px; color: var(--blue); flex-shrink: 0; }
.author-name { font-size: 16px; font-weight: 700; letter-spacing: 0.5px; line-height: 1; }
.author-role { font-size: 12px; color: var(--gray); font-family: 'Inter', sans-serif; margin-top: 3px; }
.stars { color: var(--gold); font-size: 14px; letter-spacing: 2px; margin-top: 3px; }

/* ─── ABOUT ─── */
#about { background: var(--dark2); display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-image-wrap { position: relative; }
.about-image-wrap::before { content: ''; position: absolute; top: -14px; left: -14px; right: 14px; bottom: 14px; border: 2px solid rgba(0,180,216,0.3); }
.about-image-wrap img { width: 100%; height: 520px; object-fit: cover; object-position: center top; filter: brightness(0.85); display: block; position: relative; z-index: 1; }
.about-badge { position: absolute; bottom: -22px; right: -22px; z-index: 2; background: var(--blue); color: var(--black); padding: 22px 30px; text-align: center; }
.about-badge .num { font-family: 'Bebas Neue', sans-serif; font-size: 52px; line-height: 1; }
.about-badge .badge-label { font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; }
.about-text p { font-size: 16px; color: #8a8a8a; line-height: 1.85; font-family: 'Inter', sans-serif; font-weight: 300; margin-bottom: 18px; }
.about-features { margin-top: 32px; display: flex; flex-direction: column; gap: 14px; }
.feature-row { display: flex; align-items: center; gap: 14px; }
.feature-icon { width: 32px; height: 32px; background: var(--blue-glow); border: 1px solid rgba(0,180,216,0.28); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--blue); font-size: 13px; font-weight: 800; }
.feature-row span { font-size: 15px; color: var(--light-gray); font-weight: 500; }

/* ─── CONTACT ─── */
#contact { background: var(--black); display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.contact-details { margin-top: 40px; display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; gap: 18px; align-items: flex-start; }
.contact-icon { width: 46px; height: 46px; background: var(--blue-glow); border: 1px solid rgba(0,180,216,0.28); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 18px; }
.contact-item-label { font-size: 10px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--blue); margin-bottom: 4px; font-weight: 700; }
.contact-item-value { font-size: 19px; font-weight: 600; }
.contact-item-value a { color: var(--white); text-decoration: none; transition: color 0.2s; }
.contact-item-value a:hover { color: var(--blue); }
.form-title { font-family: 'Bebas Neue', sans-serif; font-size: 38px; letter-spacing: 1px; margin-bottom: 30px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 10px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gray); margin-bottom: 7px; font-weight: 700; }
.form-group input, .form-group textarea, .form-group select { width: 100%; background: var(--dark2); border: 1px solid rgba(255,255,255,0.09); color: var(--white); padding: 13px 16px; font-family: 'Inter', sans-serif; font-size: 15px; outline: none; transition: border-color 0.2s, background 0.2s; border-radius: 0; -webkit-appearance: none; appearance: none; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--blue); background: var(--dark3); }
.form-group textarea { height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-submit { background: var(--blue); color: var(--black); border: none; padding: 16px 44px; font-family: 'Rajdhani', sans-serif; font-size: 15px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; cursor: pointer; transition: all 0.2s; width: 100%; margin-top: 6px; clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px)); }
.form-submit:hover { background: var(--blue2); }
.form-submit.success { background: #22c55e; cursor: default; }

/* ─── FOOTER ─── */
footer { background: var(--dark); border-top: 1px solid rgba(0,180,216,0.12); padding: 44px 80px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.footer-logo img { height: 38px; }
.footer-logo span { font-family: 'Bebas Neue', sans-serif; font-size: 21px; letter-spacing: 2px; color: var(--white); }
footer p { font-size: 13px; color: var(--gray); font-family: 'Inter', sans-serif; }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; letter-spacing: 1px; color: var(--gray); text-decoration: none; text-transform: uppercase; transition: color 0.2s; font-weight: 600; }
.footer-links a:hover { color: var(--blue); }

/* ─── LIGHTBOX ─── */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.96); z-index: 9999; display: none; align-items: center; justify-content: center; }
.lightbox.active { display: flex; }
.lightbox-img { max-width: 88vw; max-height: 88vh; object-fit: contain; animation: lbFade 0.22s ease; border: 1px solid rgba(0,180,216,0.15); }
@keyframes lbFade { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: scale(1); } }
.lightbox-close { position: absolute; top: 20px; right: 28px; font-size: 13px; letter-spacing: 3px; color: #fff; cursor: pointer; text-transform: uppercase; font-family: 'Rajdhani', sans-serif; font-weight: 700; opacity: 0.55; transition: opacity 0.2s; background: none; border: none; }
.lightbox-close:hover { opacity: 1; }
.lightbox-prev, .lightbox-next { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,180,216,0.12); border: 1px solid rgba(0,180,216,0.28); color: var(--white); font-family: 'Bebas Neue', sans-serif; font-size: 22px; letter-spacing: 2px; padding: 18px 22px; cursor: pointer; transition: all 0.2s; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(0,180,216,0.32); }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-counter { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); font-size: 12px; letter-spacing: 3px; color: var(--gray); font-family: 'Rajdhani', sans-serif; font-weight: 600; }

/* ─── SCROLL REVEAL ─── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1200px) {
  section, #about, #contact, #projects { padding: 80px 48px; }
  #gallery { padding: 80px 36px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .clients-grid { grid-template-columns: 1fr 1fr; }
  .testimonials { grid-template-columns: 1fr 1fr; }
  footer { padding: 40px 48px; }
}
@media (max-width: 960px) {
  .hero-stats { display: none; }
  #about { grid-template-columns: 1fr; gap: 60px; }
  #contact { grid-template-columns: 1fr; gap: 56px; }
  .project-card.featured { grid-column: auto; grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
  .testimonials { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; flex-direction: column; align-items: flex-start; gap: 0; position: fixed; top: var(--nav-h-sm); left: 0; right: 0; background: rgba(8,8,8,0.98); border-bottom: 1px solid rgba(0,180,216,0.2); padding: 10px 0 20px; z-index: 999; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 24px; width: 100%; font-size: 18px; border-bottom: 1px solid rgba(255,255,255,0.04); }
  .nav-cta { margin: 10px 24px 0; width: calc(100% - 48px); text-align: center; }
  .nav-toggle { display: flex; }
  #hero { padding: 0 24px; padding-top: var(--nav-h-sm); }
  .hero-title { font-size: 58px; }
  section, #about, #contact, #projects { padding: 60px 24px; }
  #gallery { padding: 60px 16px; }
  .services-grid, .clients-grid { grid-template-columns: 1fr; }
  .testimonials { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .equip-item.tall { grid-row: auto; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  footer { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
  .lightbox-prev, .lightbox-next { padding: 12px 14px; font-size: 17px; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 48px; }
}