/* =========================================================
   WebSants — Landing Page Premium
   Design System & Styles
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --purple: #7C3AED;
  --purple-dark: #5B21B6;
  --blue: #2563EB;
  --bg: #050505;
  --bg-alt: #0a0a0f;
  --card: #111827;
  --card-2: #0f1626;
  --text: #FFFFFF;
  --text-dim: #9CA3AF;
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(124, 58, 237, 0.35);

  --radius: 20px;
  --radius-lg: 24px;
  --radius-sm: 14px;

  --grad: linear-gradient(135deg, var(--purple) 0%, var(--blue) 100%);
  --grad-soft: linear-gradient(135deg, rgba(124,58,237,0.18), rgba(37,99,235,0.18));

  --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.25);
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.5);

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font-head: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.1; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; }
.section { padding: 120px 0; position: relative; }
.section-alt { background: var(--bg-alt); }

/* faint grid backdrop */
.section::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}
.section > .container { position: relative; z-index: 1; }

/* ---------- Typography helpers ---------- */
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 16px;
}
.section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-title { font-size: clamp(28px, 4vw, 46px); }
.section-desc { color: var(--text-dim); margin-top: 18px; font-size: 18px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-head); font-weight: 600;
  border-radius: 999px; padding: 14px 26px; font-size: 15px;
  border: 1px solid transparent; transition: all 0.35s var(--ease);
  position: relative; white-space: nowrap; will-change: transform;
}
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 17px 34px; font-size: 16px; }

.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 44px rgba(124, 58, 237, 0.6), 0 0 0 1px rgba(255,255,255,0.1) inset;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: var(--border-glow);
  background: var(--grad-soft);
  transform: translateY(-2px);
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: all 0.4s var(--ease);
  padding: 18px 0;
}
.navbar.scrolled {
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 19px; }
.brand-logo { height: 32px; width: auto; max-width: 160px; object-fit: contain; filter: drop-shadow(0 0 10px rgba(124,58,237,0.4)); transition: filter 0.3s; }
.brand:hover .brand-logo { filter: drop-shadow(0 0 16px rgba(124,58,237,0.7)); }
.brand-mark { display: grid; place-items: center; filter: drop-shadow(0 0 10px rgba(124,58,237,0.5)); }
.brand-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { color: var(--text-dim); font-size: 15px; font-weight: 500; transition: color 0.25s; }
.nav-links a:hover { color: var(--text); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  padding: 120px 0 80px;
}
.hero-glow {
  position: absolute; width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.35) 0%, rgba(37,99,235,0.18) 35%, transparent 70%);
  top: 50%; left: 50%; transform: translate(-50%, -55%);
  filter: blur(60px); pointer-events: none;
  animation: glowPulse 8s ease-in-out infinite;
}
@keyframes glowPulse {
  0%,100% { opacity: 0.8; transform: translate(-50%, -55%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -55%) scale(1.08); }
}
.hero-particles { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; max-width: 880px; }

.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 16px; border-radius: 999px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  backdrop-filter: blur(10px); font-size: 14px; font-weight: 500; margin-bottom: 28px;
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--purple); box-shadow: 0 0 12px var(--purple); animation: blink 2s infinite; }
@keyframes blink { 50% { opacity: 0.3; } }

.hero-title { font-size: clamp(34px, 6vw, 64px); font-weight: 700; letter-spacing: -0.03em; }
.hero-subtitle { color: var(--text-dim); font-size: clamp(16px, 2vw, 20px); max-width: 680px; margin: 24px auto 0; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }

.scroll-hint { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); width: 24px; height: 40px; border: 1px solid var(--border); border-radius: 14px; z-index: 2; }
.scroll-hint span { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; border-radius: 4px; background: var(--purple); animation: scrollDot 1.8s infinite; }
@keyframes scrollDot { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } 100% { opacity: 0; } }

/* ---------- Icon box ---------- */
.icon-box {
  width: 54px; height: 54px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border-glow);
  color: #c4b5fd; margin-bottom: 22px;
  box-shadow: inset 0 0 20px rgba(124,58,237,0.15);
}

/* ---------- Services ---------- */
.service-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  padding: 50px 0;
}
.service-row.reverse .service-visual { order: 2; }
.service-content h3 { font-size: 28px; margin-bottom: 14px; }
.service-content p { color: var(--text-dim); font-size: 17px; }
.benefit-list { margin: 22px 0 26px; display: grid; gap: 12px; }
.benefit-list li { position: relative; padding-left: 28px; color: var(--text); font-size: 15px; }
.benefit-list li::before {
  content: "✔"; position: absolute; left: 0; top: 0; color: var(--purple);
  font-size: 14px; width: 20px; height: 20px; display: grid; place-items: center;
  background: var(--grad-soft); border-radius: 50%; border: 1px solid var(--border-glow);
}

/* ---------- Mockups (CSS visuals) ---------- */
.service-visual { display: grid; place-items: center; }
.service-img {
  width: 100%; max-width: 440px; aspect-ratio: 16/11; object-fit: cover;
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.service-row:hover .service-img { transform: translateY(-6px) scale(1.02); box-shadow: var(--shadow-card), 0 0 80px rgba(124,58,237,0.35); }

.media-img {
  width: 100%; aspect-ratio: 16/11; object-fit: cover;
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  transition: transform 0.5s var(--ease);
}
.case-visual:hover .media-img, .cta-visual:hover .media-img { transform: scale(1.02); }
.mockup {
  width: 100%; max-width: 420px; aspect-ratio: 16/11;
  background: linear-gradient(160deg, #111827, #0b0f1a);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 18px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.mockup::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 0%, rgba(37,99,235,0.22), transparent 55%),
              radial-gradient(circle at 10% 100%, rgba(124,58,237,0.22), transparent 55%);
  pointer-events: none;
}
.mock-top { display: flex; gap: 6px; margin-bottom: 12px; }
.mock-top span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.15); }
.mock-body { display: grid; gap: 10px; }
.bar { height: 12px; border-radius: 6px; background: rgba(255,255,255,0.08); }
.bar.b1 { width: 55%; height: 18px; background: var(--grad); }
.bar.b2 { width: 80%; }
.bar.b3 { width: 40%; }
.grid-mini { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.grid-mini i { aspect-ratio: 1; border-radius: 8px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); }
.grid-mini i:nth-child(1) { background: var(--grad-soft); }

.mockup-landing { display: grid; gap: 10px; }
.lp-hero { height: 38%; border-radius: 12px; background: var(--grad-soft); border: 1px solid var(--border-glow); }
.lp-row { display: flex; gap: 8px; }
.lp-row span { flex: 1; height: 26px; border-radius: 8px; background: rgba(255,255,255,0.06); }
.lp-cta { height: 16px; width: 45%; border-radius: 999px; background: var(--grad); }

.mockup-system { display: flex; gap: 12px; }
.sys-side { width: 26%; border-radius: 12px; background: rgba(255,255,255,0.04); border: 1px solid var(--border); }
.sys-main { flex: 1; display: grid; gap: 10px; align-content: start; }

.mockup-ai { display: grid; place-items: center; }
.ai-core { width: 84px; height: 84px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 40px rgba(124,58,237,0.6); position: relative; z-index: 2; }
.ai-core.small { width: 40px; height: 40px; }
.ai-node { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: #c4b5fd; box-shadow: 0 0 14px var(--purple); }
.ai-node.n1 { top: 22%; left: 30%; } .ai-node.n2 { top: 22%; right: 30%; }
.ai-node.n3 { bottom: 22%; left: 30%; } .ai-node.n4 { bottom: 22%; right: 30%; }

.mockup-integration { display: grid; place-items: center; }
.int-node { position: absolute; width: 46px; height: 46px; border-radius: 14px; background: linear-gradient(160deg,#1a2235,#0c111d); border: 1px solid var(--border-glow); display: grid; place-items: center; color: #c4b5fd; font-size: 18px; box-shadow: var(--shadow-glow); }
.int-node.a { top: 20%; left: 14%; } .int-node.b { top: 20%; right: 14%; }
.int-node.c { bottom: 20%; left: 14%; } .int-node.d { bottom: 20%; right: 14%; }
.int-line { position: absolute; height: 2px; background: linear-gradient(90deg, transparent, var(--purple), transparent); }
.int-line.l1 { top: 34%; left: 22%; width: 56%; }
.int-line.l2 { bottom: 34%; left: 22%; width: 56%; }

.mockup-dashboard { display: grid; gap: 12px; }
.dash-top { display: flex; justify-content: space-between; }
.dash-top span { width: 30%; height: 10px; border-radius: 6px; background: rgba(255,255,255,0.1); }
.dash-top span:last-child { width: 16%; background: var(--grad); }
.dash-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.dash-cards i { height: 34px; border-radius: 8px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); }
.dash-cards i:first-child { background: var(--grad-soft); }
.dash-chart { display: flex; align-items: flex-end; gap: 8px; height: 60px; }
.dash-chart span { flex: 1; border-radius: 6px 6px 0 0; height: var(--h); background: var(--grad); opacity: 0.85; }

/* ---------- Differentials ---------- */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.diff-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 30px; transition: transform 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s;
  position: relative; overflow: hidden;
}
.diff-card::before {
  content: ""; position: absolute; inset: 0; opacity: 0;
  background: radial-gradient(circle at 50% 0%, rgba(124,58,237,0.18), transparent 60%);
  transition: opacity 0.4s;
}
.diff-card:hover { transform: translateY(-8px); border-color: var(--border-glow); box-shadow: var(--shadow-card); }
.diff-card:hover::before { opacity: 1; }
.diff-card h3 { font-size: 20px; margin-bottom: 12px; position: relative; }
.diff-card p { color: var(--text-dim); font-size: 15px; position: relative; }

/* ---------- Process / Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step-line { position: absolute; top: 46px; left: 8%; right: 8%; height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--blue)); opacity: 0.3; }
.step { text-align: center; position: relative; z-index: 2; }
.step-num { font-family: var(--font-head); font-size: 13px; color: var(--purple); letter-spacing: 0.1em; margin-bottom: 14px; }
.step .icon-box { margin: 0 auto 18px; }
.step h3 { font-size: 20px; margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 15px; }

/* ---------- Portfolio ---------- */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.port-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px; transition: transform 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s;
}
.port-card:hover { transform: translateY(-8px); border-color: var(--border-glow); box-shadow: var(--shadow-card), var(--shadow-glow); }
.port-screen { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: linear-gradient(160deg,#0b0f1a,#0e1422); aspect-ratio: 16/11; position: relative; }
.port-screen::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 70% 10%, rgba(37,99,235,0.25), transparent 55%); pointer-events: none; }
.port-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s var(--ease); }
.port-card:hover .port-img { transform: scale(1.05); }
.screen-ui { padding: 16px; display: grid; gap: 10px; height: 100%; }
.notebook { box-shadow: 0 14px 0 -2px #1c2536, 0 26px 40px rgba(0,0,0,0.5); }
.phone { max-width: 56%; margin: 0 auto; border-radius: 28px; aspect-ratio: 9/18; }
.port-info { padding-top: 20px; }
.port-info h3 { font-size: 20px; margin-bottom: 8px; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: var(--grad-soft); border: 1px solid var(--border-glow); color: #c4b5fd; margin-bottom: 12px; }
.port-info p { color: var(--text-dim); font-size: 15px; margin-bottom: 16px; }
.link-arrow { color: #c4b5fd; font-weight: 600; font-size: 15px; display: inline-flex; gap: 8px; transition: gap 0.3s; }
.link-arrow:hover { gap: 14px; }

/* ---------- Cases ---------- */
.case-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 48px; position: relative; overflow: hidden; }
.case-block::before { content:""; position:absolute; inset:0; background: radial-gradient(circle at 100% 0%, rgba(124,58,237,0.15), transparent 50%); }
.case-dash { max-width: 480px; }
.case-content h2 { font-size: clamp(26px,3.4vw,40px); margin-bottom: 16px; }
.case-content p { color: var(--text-dim); font-size: 17px; margin-bottom: 24px; }
.result-list { display: grid; gap: 14px; }
.result-list li { display: flex; align-items: center; gap: 12px; font-size: 16px; }
.check { color: var(--purple); font-weight: 700; }

/* ---------- FAQ ---------- */
.accordion { display: grid; gap: 14px; }
.acc-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: border-color 0.3s; }
.acc-item.open { border-color: var(--border-glow); }
.acc-trigger { width: 100%; background: none; border: 0; color: var(--text); text-align: left;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 22px 24px; font-family: var(--font-head); font-size: 17px; font-weight: 600; }
.acc-icon { font-size: 22px; color: var(--purple); transition: transform 0.3s; }
.acc-item.open .acc-icon { transform: rotate(45deg); }
.acc-panel { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.acc-panel p { padding: 0 24px 24px; color: var(--text-dim); font-size: 15px; }

/* ---------- CTA ---------- */
.cta-block { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
  background: var(--card-2); border: 1px solid var(--border-glow); border-radius: var(--radius-lg);
  padding: 56px; position: relative; overflow: hidden; }
.cta-glow { position: absolute; width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.4), rgba(37,99,235,0.2) 40%, transparent 70%);
  top: -40%; left: -10%; filter: blur(50px); animation: glowPulse 7s infinite; }
.cta-content { position: relative; z-index: 2; }
.cta-title { font-size: clamp(26px,3.4vw,40px); margin-bottom: 16px; }
.cta-content p { color: var(--text-dim); font-size: 18px; margin-bottom: 30px; max-width: 460px; }
.cta-dash { max-width: 420px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 70px 0 30px; background: var(--bg); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand p { color: var(--text-dim); font-size: 15px; margin-top: 16px; max-width: 360px; }
.footer-col h4 { font-size: 15px; margin-bottom: 18px; color: var(--text); }
.footer-col a { display: block; color: var(--text-dim); font-size: 15px; margin-bottom: 12px; transition: color 0.25s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 24px; color: var(--text-dim); font-size: 14px; }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-reveal="left"] { transform: translateX(-40px); }
.reveal[data-reveal="right"] { transform: translateX(40px); }
.reveal[data-reveal="scale"] { transform: scale(0.94); }
.reveal.in[data-reveal="left"], .reveal.in[data-reveal="right"] { transform: none; }
.reveal.in[data-reveal="scale"] { transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Scroll progress bar ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 200;
  background: var(--grad); transform: scaleX(0); transform-origin: left;
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.6);
}

/* ---------- Cursor glow ---------- */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 28px; height: 28px; margin: -14px 0 0 -14px;
  border-radius: 50%; pointer-events: none; z-index: 9999;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.55), rgba(37, 99, 235, 0.25) 45%, transparent 70%);
  mix-blend-mode: screen; opacity: 0; transition: opacity 0.3s;
}
.cursor-glow.visible { opacity: 1; }
@media (pointer: coarse) { .cursor-glow { display: none; } }

/* ---------- Animated gradient border (diferenciais) ---------- */
.diff-card { perspective: 900px; }
.diff-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, var(--purple), var(--blue), var(--purple));
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.4s; animation: borderFlow 6s linear infinite;
}
.diff-card:hover::after { opacity: 1; }
@keyframes borderFlow { 0% { background-position: 0% 50%; } 100% { background-position: 300% 50%; } }

/* ---------- Tilt 3D removido ---------- */

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .cards-grid, .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .step-line { display: none; }
  .service-row, .service-row.reverse { grid-template-columns: 1fr; gap: 32px; }
  .service-row.reverse .service-visual { order: 0; }
  .case-block, .cta-block { grid-template-columns: 1fr; padding: 36px; }
  .cta-visual { order: -1; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .nav-links, .navbar .btn { display: none; }
  .nav-toggle { display: flex; }
  .navbar.menu-open .nav-links {
    display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(5,5,5,0.96); backdrop-filter: blur(18px); padding: 24px; gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .cards-grid, .portfolio-grid, .steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 10px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .cta-block { padding: 32px 24px; }
}