/* ===== Base & Reset ===== */
:root{
  --bg: #0a0a12;
  --bg-alt: #0e0e18;
  --surface: #14141f;
  --surface-2: #191927;
  --border: #26263a;
  --text: #f3f2fa;
  --text-dim: #a8a5c0;
  --text-dimmer: #75728f;
  --primary: #8b5cf6;
  --primary-2: #ff5ca8;
  --accent: #22d3ee;
  --grad-1: linear-gradient(135deg, #8b5cf6, #22d3ee);
  --grad-2: linear-gradient(135deg, #ff5ca8, #8b5cf6);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-lg: 0 30px 60px -20px rgba(0,0,0,.55);
  --shadow-md: 0 16px 32px -12px rgba(0,0,0,.45);
  --ease: cubic-bezier(.22,1,.36,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Vazirmatn', Tahoma, sans-serif;
  font-weight: 400;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3,h4{ margin:0; font-weight:700; line-height:1.35; }
p{ margin:0; color: var(--text-dim); }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color: inherit; text-decoration:none; }
svg{ display:block; }
button{ font-family: inherit; cursor:pointer; }
input, select, textarea{ font-family:inherit; }

.container{
  width:100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow{
  display:inline-block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .02em;
  margin-bottom: 14px;
}

.section-title{
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 14px;
}

.section-sub{
  color: var(--text-dim);
  font-size: 1.02rem;
  max-width: 620px;
}

.section-head{
  text-align:center;
  margin: 0 auto 56px;
  max-width: 680px;
}
.section-head .section-sub{ margin: 0 auto; }

section{ position: relative; padding: 96px 0; }

.text-gradient{
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Buttons ===== */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: .96rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn:active{ transform: scale(.96); }
.btn-primary{
  background: var(--grad-1);
  color: #0a0a12;
  box-shadow: 0 12px 28px -10px rgba(139,92,246,.55);
}
.btn-primary:hover{ transform: translateY(-3px); box-shadow: 0 18px 34px -10px rgba(139,92,246,.65); }
.btn-outline{
  border-color: var(--border);
  color: var(--text);
  background: rgba(255,255,255,.02);
}
.btn-outline:hover{ border-color: var(--primary); color: var(--accent); transform: translateY(-3px); }
.btn-light{
  background: #fff;
  color: #12121f;
}
.btn-light:hover{ transform: translateY(-3px); box-shadow: 0 18px 34px -10px rgba(0,0,0,.35); }
.btn-sm{ padding: 10px 22px; font-size: .88rem; }
.btn-block{ width:100%; }
.btn-label{ display:inline-block; }

/* ===== Ribbon ===== */
.ribbon{
  background: var(--grad-1);
  color: #0a0a12;
  text-align:center;
  font-size: .82rem;
  font-weight: 600;
  padding: 9px 16px;
}

/* ===== Header ===== */
.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(10,10,18,.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.scrolled{
  border-bottom-color: var(--border);
  background: rgba(10,10,18,.92);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo{ display:flex; align-items:center; gap:10px; }
.logo-mark{ width:34px; height:34px; flex-shrink:0; }
.logo-mark svg{ width:100%; height:100%; }
.logo-text{ font-size: 1.12rem; font-weight:700; }
.logo-text em{ font-style:normal; color: var(--accent); }

.main-nav ul{ display:flex; align-items:center; gap: 30px; }
.nav-link{
  position:relative;
  font-size: .92rem;
  color: var(--text-dim);
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.nav-link::after{
  content:'';
  position:absolute;
  right:0; bottom:0;
  width:0; height:2px;
  background: var(--grad-1);
  transition: width .3s var(--ease);
}
.nav-link:hover{ color: var(--text); }
.nav-link:hover::after{ width:100%; }

.header-cta{ flex-shrink:0; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:38px;
  height:38px;
  background:none;
  border:none;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:100%;
  height:2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle.active span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2){ opacity:0; }
.nav-toggle.active span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero{
  position: relative;
  padding: 90px 0 60px;
  overflow: hidden;
  min-height: 88vh;
  display:flex;
  align-items:center;
}
.hero-bg{ position:absolute; inset:0; z-index:0; pointer-events:none; }
.blob{
  position:absolute;
  border-radius:50%;
  filter: blur(70px);
  opacity:.45;
  animation: float 12s ease-in-out infinite;
}
.blob-a{ width:420px; height:420px; background: var(--primary); top:-140px; left:-100px; }
.blob-b{ width:380px; height:380px; background: var(--primary-2); bottom:-160px; right:-80px; animation-delay: -6s; }
.grid-lines{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 72%);
}
@keyframes float{
  0%,100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(30px,-24px) scale(1.06); }
}

.hero-grid{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items:center;
}
.hero-title{ font-size: clamp(2.1rem, 4vw, 3.4rem); margin-bottom: 22px; }
.hero-sub{ font-size: 1.05rem; max-width: 540px; margin-bottom: 34px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom: 46px; }
.hero-mini-stats{ display:flex; gap: 38px; flex-wrap:wrap; }
.mini-stat{ display:flex; flex-direction:column; gap:4px; }
.mini-stat strong{ font-size: 1.3rem; font-weight:700; }
.mini-stat span{ font-size: .82rem; color: var(--text-dimmer); }

/* hero copy reveal */
[data-animate]{ opacity:0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-animate="fade-in"]{ transform: none; }
[data-animate].in-view{ opacity:1; transform: none; }
[data-animate-delay="1"]{ transition-delay: .1s; }
[data-animate-delay="2"]{ transition-delay: .22s; }
[data-animate-delay="3"]{ transition-delay: .34s; }

/* ===== 3D cube ===== */
.hero-visual{ display:flex; justify-content:center; position:relative; z-index:1; }
.cube-stage{
  --tiltX: 0deg;
  --tiltY: 0deg;
  position:relative;
  width: 280px;
  height: 280px;
  perspective: 900px;
}
.cube{
  position:absolute;
  inset:0;
  margin:auto;
  width: 140px;
  height: 140px;
  transform-style: preserve-3d;
  transform: rotateX(calc(-22deg + var(--tiltX))) rotateY(calc(35deg + var(--tiltY)));
  animation: spin 16s linear infinite;
  transition: transform .3s var(--ease);
}
@keyframes spin{
  from{ transform: rotateX(calc(-22deg + var(--tiltX))) rotateY(calc(0deg + var(--tiltY))); }
  to{ transform: rotateX(calc(-22deg + var(--tiltX))) rotateY(calc(360deg + var(--tiltY))); }
}
.cube-face{
  position:absolute;
  width:140px; height:140px;
  border: 1px solid rgba(255,255,255,.18);
  background: linear-gradient(135deg, rgba(139,92,246,.35), rgba(34,211,238,.22));
  backdrop-filter: blur(2px);
  border-radius: 14px;
  box-shadow: inset 0 0 30px rgba(255,255,255,.06);
}
.cube-face.front{ transform: translateZ(70px); }
.cube-face.back{ transform: translateZ(-70px) rotateY(180deg); }
.cube-face.right{ transform: rotateY(90deg) translateZ(70px); background: linear-gradient(135deg, rgba(255,92,168,.32), rgba(139,92,246,.28)); }
.cube-face.left{ transform: rotateY(-90deg) translateZ(70px); background: linear-gradient(135deg, rgba(255,92,168,.32), rgba(139,92,246,.28)); }
.cube-face.top{ transform: rotateX(90deg) translateZ(70px); background: linear-gradient(135deg, rgba(34,211,238,.35), rgba(139,92,246,.2)); }
.cube-face.bottom{ transform: rotateX(-90deg) translateZ(70px); background: linear-gradient(135deg, rgba(34,211,238,.35), rgba(139,92,246,.2)); }

.ring{
  position:absolute;
  border: 1px solid rgba(139,92,246,.35);
  border-radius: 50%;
  inset: 0;
  margin:auto;
}
.ring-a{ width: 230px; height:230px; animation: rotate-slow 20s linear infinite; }
.ring-b{ width: 280px; height:280px; border-color: rgba(34,211,238,.25); animation: rotate-slow 26s linear infinite reverse; }
@keyframes rotate-slow{ from{ transform: rotate(0deg); } to{ transform: rotate(360deg); } }

.dot{ position:absolute; width:10px; height:10px; border-radius:50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
.dot-a{ top: 18%; right: 10%; animation: bob 5s ease-in-out infinite; }
.dot-b{ bottom: 14%; left: 6%; background: var(--primary-2); box-shadow: 0 0 14px var(--primary-2); animation: bob 6s ease-in-out infinite -2s; }
.dot-c{ top: 8%; left: 24%; width:6px; height:6px; animation: bob 4s ease-in-out infinite -1s; }
@keyframes bob{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-14px); } }

.scroll-cue{
  position:absolute;
  bottom: 28px;
  left:50%;
  transform: translateX(-50%);
  z-index:1;
  opacity:.7;
  transition: opacity .3s;
}
.scroll-cue:hover{ opacity:1; }
.scroll-cue-mouse{
  display:block;
  width: 24px; height: 38px;
  border: 2px solid var(--text-dim);
  border-radius: 14px;
  position:relative;
}
.scroll-cue-mouse span{
  position:absolute;
  top:6px; left:50%;
  width:4px; height:8px;
  margin-right:-2px;
  background: var(--accent);
  border-radius: 2px;
  animation: scroll-cue 1.8s ease-in-out infinite;
}
@keyframes scroll-cue{
  0%{ transform: translateY(0); opacity:1; }
  70%{ transform: translateY(12px); opacity:0; }
  100%{ opacity:0; }
}

/* ===== About ===== */
.about{ background: var(--bg-alt); }
.about-grid{
  display:grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items:center;
}
.about-illustration{ width:100%; max-width: 420px; margin: 0 auto; display:block; }
.about-copy{ display:block; }
.about-text{ margin: 20px 0 32px; font-size: 1.02rem; }

.feature-list{ display:grid; gap: 22px; }
.feature-item{ display:flex; gap: 16px; align-items:flex-start; }
.feature-icon{
  flex-shrink:0;
  width: 46px; height:46px;
  border-radius: 13px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  color: var(--accent);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.feature-icon svg{ width: 22px; height:22px; }
.feature-item:hover .feature-icon{ transform: translateY(-4px) rotate(-4deg); border-color: var(--primary); }
.feature-item h3{ font-size: 1.02rem; margin-bottom: 6px; }
.feature-item p{ font-size: .92rem; }

/* ===== Process / Timeline ===== */
.timeline{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.timeline-item{
  position:relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.timeline-item:hover{
  transform: translateY(-6px);
  border-color: rgba(139,92,246,.45);
  box-shadow: var(--shadow-md);
}
.timeline-num{
  display:inline-block;
  font-size: 1.6rem;
  font-weight:900;
  background: var(--grad-1);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom: 14px;
}
.timeline-item h3{ font-size: 1.05rem; margin-bottom: 10px; }
.timeline-item p{ font-size: .92rem; }

/* ===== Services ===== */
.services-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.service-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.service-card:hover{
  transform: translateY(-8px);
  border-color: rgba(34,211,238,.4);
  box-shadow: var(--shadow-md);
}
.service-tile{
  display:flex; align-items:center; justify-content:center;
  width: 52px; height:52px;
  border-radius: 14px;
  margin-bottom: 18px;
  transition: transform .35s var(--ease);
}
.service-tile svg{ width:24px; height:24px; }
.service-card:hover .service-tile{ transform: scale(1.08) rotate(-3deg); }
.tile-1{ background: linear-gradient(135deg,#8b5cf6,#6d28d9); }
.tile-2{ background: linear-gradient(135deg,#22d3ee,#0891b2); }
.tile-3{ background: linear-gradient(135deg,#ff5ca8,#c026d3); }
.tile-4{ background: linear-gradient(135deg,#8b5cf6,#22d3ee); }
.tile-5{ background: linear-gradient(135deg,#f59e0b,#ef4444); }
.tile-6{ background: linear-gradient(135deg,#22d3ee,#8b5cf6); }
.tile-7{ background: linear-gradient(135deg,#10b981,#22d3ee); }
.tile-8{ background: linear-gradient(135deg,#ff5ca8,#8b5cf6); }
.service-card h3{ font-size: 1rem; margin-bottom: 8px; }
.service-card p{ font-size: .88rem; }

/* ===== Portfolio ===== */
.portfolio{ background: var(--bg-alt); }
.portfolio-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.portfolio-card{
  position:relative;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  min-height: 220px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.portfolio-card:hover{ transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-lg); }
.portfolio-shape{
  position:absolute;
  top: -10px; left: -10px;
  width: 140px; height:140px;
  opacity:.9;
  transition: transform .5s var(--ease);
}
.portfolio-card:hover .portfolio-shape{ transform: scale(1.1) rotate(6deg); }
.portfolio-tag{
  align-self:flex-start;
  font-size: .74rem;
  font-weight:600;
  background: rgba(255,255,255,.16);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.portfolio-card h3{ font-size: 1.08rem; position:relative; z-index:1; }
.grad-1{ background: linear-gradient(150deg,#7c3aed,#4c1d95); }
.grad-2{ background: linear-gradient(150deg,#0891b2,#164e63); }
.grad-3{ background: linear-gradient(150deg,#db2777,#831843); }
.grad-4{ background: linear-gradient(150deg,#8b5cf6,#22d3ee); }
.grad-5{ background: linear-gradient(150deg,#ea580c,#7c2d12); }
.grad-6{ background: linear-gradient(150deg,#059669,#0f766e); }

/* ===== Stats ===== */
.stats{
  background: var(--grad-2);
  padding: 70px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align:center;
}
.stat-item{ color: #0a0a12; }
.stat-num{ font-size: 2.6rem; font-weight:900; display:inline-block; }
.stat-plus{ font-size: 1.6rem; font-weight:800; }
.stat-item p{ color: rgba(10,10,18,.75); font-size: .92rem; margin-top: 6px; font-weight: 600; }

/* ===== Testimonials ===== */
.testimonial-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card{
  margin:0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  display:flex;
  flex-direction:column;
  gap: 22px;
  transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.testimonial-card:hover{ transform: translateY(-6px); border-color: rgba(139,92,246,.4); }
.testimonial-card p{ color: var(--text); font-size: .95rem; }
.testimonial-card footer{ display:flex; align-items:center; gap: 12px; }
.avatar{
  width: 42px; height:42px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background: var(--grad-1);
  color: #0a0a12;
  font-weight:700;
  font-size: .85rem;
  flex-shrink:0;
}
.testimonial-card footer strong{ display:block; font-size: .9rem; }
.testimonial-card footer span{ font-size: .78rem; color: var(--text-dimmer); }

/* ===== CTA banner ===== */
.cta-banner{
  padding: 90px 0;
  background: radial-gradient(circle at 30% 20%, rgba(139,92,246,.28), transparent 60%), var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-inner{ text-align:center; max-width: 620px; margin:0 auto; }
.cta-inner h2{ font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 16px; }
.cta-inner p{ margin-bottom: 30px; }

/* ===== Contact ===== */
.contact-grid{
  display:grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 60px;
  align-items:flex-start;
}
.contact-info{ display:block; }
.contact-info .section-sub{ margin: 16px 0 30px; }
.contact-list{ display:grid; gap: 16px; margin-bottom: 30px; }
.contact-list li{ display:flex; align-items:center; gap: 14px; color: var(--text-dim); font-size: .92rem; }
.contact-icon{
  width: 40px; height:40px;
  border-radius: 11px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  color: var(--accent);
  flex-shrink:0;
}
.contact-icon svg{ width:18px; height:18px; }

.social-links{ display:flex; gap: 12px; }
.social-links a{
  width: 42px; height:42px;
  border-radius:50%;
  border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  color: var(--text-dim);
  transition: transform .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.social-links a svg{ width:18px; height:18px; }
.social-links a:hover{ color: var(--accent); border-color: var(--accent); transform: translateY(-4px); }

.contact-form{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field{ margin-bottom: 20px; display:flex; flex-direction:column; gap:8px; }
.form-field label{ font-size: .86rem; color: var(--text-dim); }
.form-field label em{ color: var(--primary-2); font-style:normal; }
.form-field input,
.form-field select,
.form-field textarea{
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text);
  font-size: .92rem;
  outline:none;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
  resize: vertical;
}
.form-field input::placeholder,
.form-field textarea::placeholder{ color: var(--text-dimmer); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139,92,246,.22);
}
.form-field input.invalid,
.form-field select.invalid,
.form-field textarea.invalid{
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248,113,113,.16);
}
.field-error{
  font-size: .78rem;
  color: #f87171;
  min-height: 1em;
  display:block;
}
.form-status{
  margin-top: 16px;
  font-size: .88rem;
  min-height: 1.2em;
}
.form-status.success{ color: #34d399; }
.form-status.error{ color: #f87171; }

/* ===== Footer ===== */
.site-footer{
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding-top: 70px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-brand{ display:block; }
.footer-brand p{ margin-top: 16px; font-size: .88rem; max-width: 280px; }
.footer-col h4{ font-size: .92rem; margin-bottom: 18px; color: var(--text); }
.footer-col ul{ display:grid; gap: 12px; }
.footer-col ul li,
.footer-col ul li a{ font-size: .86rem; color: var(--text-dim); transition: color .25s var(--ease); }
.footer-col ul li a:hover{ color: var(--accent); }
.footer-social{ margin-top: 18px; }
.footer-social a{ width:36px; height:36px; }
.footer-social a svg{ width:16px; height:16px; }
.footer-bottom{
  border-top: 1px solid var(--border);
  padding: 22px 24px;
  text-align:center;
}
.footer-bottom p{ font-size: .82rem; color: var(--text-dimmer); }

/* ===== Responsive ===== */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; text-align:center; }
  .hero-copy{ order:2; }
  .hero-visual{ order:1; }
  .hero-actions{ justify-content:center; }
  .hero-mini-stats{ justify-content:center; }
  .about-grid{ grid-template-columns: 1fr; }
  .about-visual{ order:-1; }
  .timeline{ grid-template-columns: repeat(2, 1fr); }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid{ grid-template-columns: repeat(2, 1fr); }
  .stats-grid{ grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .testimonial-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed;
    inset: 68px 0 0 0;
    background: rgba(10,10,18,.98);
    backdrop-filter: blur(10px);
    display:flex;
    align-items:flex-start;
    justify-content:flex-start;
    padding: 30px 24px;
    transform: translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
    z-index: 90;
  }
  .main-nav.open{ opacity:1; transform:none; visibility:visible; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap: 20px; width:100%; }
  .nav-link{ font-size: 1.05rem; }
  .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
  section{ padding: 70px 0; }
  .timeline{ grid-template-columns: 1fr; }
  .services-grid{ grid-template-columns: 1fr; }
  .portfolio-grid{ grid-template-columns: 1fr; }
  .stats-grid{ grid-template-columns: 1fr 1fr; }
  .form-row{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 32px; }
  .cube-stage{ width: 220px; height:220px; }
}

@media (max-width: 460px){
  .container{ padding: 0 18px; }
  .hero{ min-height: auto; padding-top: 60px; }
  .hero-title{ font-size: 2rem; }
  .btn{ width:100%; }
  .hero-actions{ flex-direction:column; }
}