/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blue-600:   #2563eb;
  --blue-500:   #3b82f6;
  --blue-400:   #60a5fa;
  --blue-300:   #93c5fd;
  --blue-100:   #dbeafe;
  --blue-50:    #eff6ff;
  --amber-400:  #fbbf24;
  --amber-300:  #fcd34d;
  --amber-100:  #fef3c7;
  --slate-900:  #0f172a;
  --slate-800:  #1e293b;
  --slate-700:  #334155;
  --slate-600:  #475569;
  --slate-400:  #94a3b8;
  --slate-200:  #e2e8f0;
  --slate-100:  #f1f5f9;
  --slate-50:   #f8fafc;
  --white:      #ffffff;
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
  --shadow-glow: 0 0 40px rgba(37,99,235,.25);
}

html { scroll-behavior: smooth; }

body {
  color: var(--slate-800);
  line-height: 1.65;
  background: var(--white);
  overflow-x: hidden;
}
:lang(ko) { font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Nanum Gothic', 'Noto Sans KR', sans-serif; }
:lang(en) { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; }
:lang(ja) { font-family: 'Hiragino Kaku Gothic Pro', 'Meiryo', 'Noto Sans JP', sans-serif; }

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; }

/* ============================================================
   SCROLL ANIMATION — elements start invisible, JS reveals them
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.40s; }
.reveal-delay-6 { transition-delay: 0.48s; }

/* ============================================================
   NAVBAR
============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226,232,240,.6);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
  letter-spacing: -.3px;
}
.nav-brand-paw { font-size: 22px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--slate-600);
  transition: background .15s, color .15s;
}
.nav-link:hover { background: var(--slate-100); color: var(--slate-900); text-decoration: none; }
.nav-cta {
  padding: 8px 18px;
  background: var(--blue-600);
  color: var(--white) !important;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
}
.nav-cta:hover { background: #1d4ed8; text-decoration: none; }
.nav-lang {
  font-size: 12px;
  font-weight: 600;
  color: var(--slate-400);
  margin-left: 8px;
}
.nav-lang a { color: var(--slate-400); transition: color .15s; }
.nav-lang a:hover { color: var(--blue-600); text-decoration: none; }
.nav-lang .nav-link-active { color: var(--blue-600); text-decoration: none; }

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 24px 80px;
  text-align: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37,99,235,.14) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 60%, rgba(251,191,36,.10) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 20% 70%, rgba(96,165,250,.09) 0%, transparent 55%),
    linear-gradient(170deg, #f0f7ff 0%, #fefce8 50%, #f0f7ff 100%);
}

/* decorative blobs */
.hero::before {
  content: '';
  position: absolute;
  top: -80px; left: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(96,165,250,.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; right: -60px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(251,191,36,.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }

.hero-paw-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(255,255,255,.75);
  border: 1px solid rgba(37,99,235,.2);
  border-radius: 24px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--blue-600);
  letter-spacing: .2px;
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(37,99,235,.1);
}

/* CSS-only paw mascot */
.hero-paw {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 3px 8px rgba(37,99,235,.35));
}
.paw-toes {
  display: flex;
  gap: 2px;
  margin-bottom: -2px;
}
.paw-toe {
  width: 7px;
  height: 7px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
}
.paw-toe:nth-child(1) { transform: translateY(5px) rotate(-18deg); }
.paw-toe:nth-child(2) { width: 8px; height: 8px; transform: translateY(-1px) rotate(-5deg); }
.paw-toe:nth-child(3) { width: 8px; height: 8px; transform: translateY(-1px) rotate(5deg); }
.paw-toe:nth-child(4) { transform: translateY(5px) rotate(18deg); }
.paw-pad {
  width: 24px;
  height: 20px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-radius: 50% 50% 45% 45% / 55% 55% 45% 45%;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-4px); }
}

.hero h1 {
  font-size: clamp(32px, 5.5vw, 52px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 18px;
  color: var(--slate-900);
}
.hero h1 .accent { color: var(--blue-600); }
.hero h1 .accent-warm {
  background: linear-gradient(90deg, var(--blue-600), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--slate-600);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .18s cubic-bezier(.4,0,.2,1);
  letter-spacing: -.1px;
}
.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(37,99,235,.35);
}
.btn-primary:hover {
  background: #1d4ed8;
  box-shadow: 0 6px 24px rgba(37,99,235,.45);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-secondary {
  background: rgba(255,255,255,.85);
  color: var(--slate-700);
  border: 1.5px solid var(--slate-200);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  background: var(--white);
  border-color: var(--blue-400);
  color: var(--blue-600);
  transform: translateY(-2px);
  text-decoration: none;
}

/* terminal block */
.hero-terminal {
  display: inline-block;
  background: var(--slate-900);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border: 1px solid rgba(255,255,255,.07);
  text-align: left;
  min-width: 340px;
  max-width: 460px;
  width: 100%;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.terminal-dot-r { background: #ff5f57; }
.terminal-dot-y { background: #febc2e; }
.terminal-dot-g { background: #28c840; }
.terminal-label {
  margin-left: 4px;
  font-size: 12px;
  color: rgba(255,255,255,.3);
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}
.terminal-body {
  padding: 18px 20px 20px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 13.5px;
  line-height: 1.8;
}
.t-prompt { color: #4ade80; }
.t-cmd    { color: #38bdf8; }
.t-out    { color: #94a3b8; }
.t-highlight { color: #fbbf24; }
.t-cursor {
  display: inline-block;
  width: 8px; height: 14px;
  background: #38bdf8;
  border-radius: 2px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--slate-400);
}

/* ============================================================
   SOCIAL PROOF STRIP
============================================================ */
.proof-strip {
  background: linear-gradient(90deg, #f0f7ff 0%, #fefce8 50%, #f0f7ff 100%);
  border-top: 1px solid rgba(37,99,235,.08);
  border-bottom: 1px solid rgba(37,99,235,.08);
  padding: 18px 24px;
  text-align: center;
}
.proof-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
}
.proof-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-600);
}
.proof-dot {
  width: 6px; height: 6px;
  background: var(--amber-400);
  border-radius: 50%;
}

/* ============================================================
   SECTION WRAPPER
============================================================ */
.section {
  padding: 88px 24px;
  max-width: 1040px;
  margin: 0 auto;
}
.section-full {
  padding: 88px 24px;
}
.section-center {
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
  color: var(--slate-900);
  line-height: 1.2;
}
.section-sub {
  font-size: 17px;
  color: var(--slate-500);
  max-width: 560px;
  margin: 0 auto 52px;
  line-height: 1.7;
}

/* ============================================================
   FEATURES
============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  opacity: 0;
  transition: opacity .2s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue-400);
  box-shadow: var(--shadow-lg);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon-wrap {
  width: 52px; height: 52px;
  background: var(--blue-50);
  border: 1.5px solid var(--blue-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--slate-900);
}
.feature-card p {
  font-size: 14px;
  color: var(--slate-500);
  line-height: 1.7;
}

/* ============================================================
   HOW IT WORKS
============================================================ */
.how-section {
  background: linear-gradient(165deg, #f0f7ff 0%, #fefce8 55%, #f0f7ff 100%);
  border-top: 1px solid rgba(37,99,235,.07);
  border-bottom: 1px solid rgba(37,99,235,.07);
}
.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}
.steps-row::before {
  content: '';
  position: absolute;
  top: 44px;
  left: calc(16.67% + 20px);
  right: calc(16.67% + 20px);
  height: 2px;
  background: linear-gradient(90deg, var(--blue-400), var(--amber-300));
  z-index: 0;
}
.step {
  text-align: center;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  margin: 0 auto 18px;
  box-shadow: 0 4px 16px rgba(37,99,235,.35);
  border: 3px solid var(--white);
}
.step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--slate-900);
}
.step p {
  font-size: 14px;
  color: var(--slate-500);
  line-height: 1.65;
}
.step-emoji { font-size: 22px; margin-bottom: 10px; }

/* ============================================================
   USE CASES
============================================================ */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.usecase-card {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.usecase-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-300, #93c5fd);
}
.usecase-num-badge {
  flex-shrink: 0;
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 3px 10px rgba(37,99,235,.25);
}
.usecase-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 5px;
  color: var(--slate-900);
}
.usecase-card p {
  font-size: 13.5px;
  color: var(--slate-500);
  line-height: 1.65;
}
.usecase-card code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
  background: var(--slate-100);
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--blue-600);
}

/* ============================================================
   SKILLS GALLERY
============================================================ */
.skills-section {
  background: var(--slate-900);
}
.skills-section .section-eyebrow {
  background: rgba(37,99,235,.25);
  border-color: rgba(37,99,235,.4);
  color: var(--blue-400);
}
.skills-section .section-title { color: var(--white); }
.skills-section .section-sub { color: var(--slate-400); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 16px;
}
.skill-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  cursor: default;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
  position: relative;
  overflow: hidden;
}
.skill-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.15), rgba(251,191,36,.08));
  opacity: 0;
  transition: opacity .2s ease;
  border-radius: var(--radius-lg);
}
.skill-card:hover {
  transform: translateY(-5px) scale(1.02);
  background: rgba(255,255,255,.07);
  border-color: rgba(37,99,235,.4);
}
.skill-card:hover::after { opacity: 1; }
.skill-icon {
  font-size: 36px;
  margin-bottom: 12px;
  display: block;
  position: relative;
  z-index: 1;
}
.skill-card h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 5px;
  position: relative;
  z-index: 1;
}
.skill-card p {
  font-size: 12px;
  color: var(--slate-400);
  position: relative;
  z-index: 1;
}
.skill-tag {
  display: inline-block;
  margin-top: 8px;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  background: rgba(37,99,235,.25);
  color: var(--blue-400);
  border-radius: 10px;
  letter-spacing: .3px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

/* ============================================================
   TECH STACK
============================================================ */
.tech-section { background: var(--slate-50); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.tech-card {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.tech-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.tech-badge {
  width: 40px; height: 40px;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.tech-card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--slate-800);
}
.tech-card-desc {
  font-size: 12px;
  color: var(--slate-400);
}

/* ============================================================
   COMPARE TABLE
============================================================ */
.compare-table-wrapper {
  overflow-x: auto;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.compare-table th, .compare-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid #e2e8f0;
}
.compare-table th {
  font-weight: 600;
  color: #1e293b;
  background: #f8fafc;
}
.compare-table th:nth-child(2) {
  color: #2563eb;
  background: #eff6ff;
}
.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: #475569;
}
.compare-table td:nth-child(2) {
  background: #eff6ff;
  font-weight: 600;
}
.compare-table tbody tr:hover {
  background: #f8fafc;
}

/* ============================================================
   CTA
============================================================ */
.cta-section {
  position: relative;
  overflow: hidden;
  background: var(--slate-900);
  padding: 100px 24px;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -120px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.25) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px; right: -60px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(251,191,36,.12) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; max-width: 580px; margin: 0 auto; }
.cta-paw { font-size: 48px; margin-bottom: 20px; display: block; animation: float 4s ease-in-out infinite 1s; }
.cta-section h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -1px;
  margin-bottom: 14px;
}
.cta-section p {
  font-size: 17px;
  color: var(--slate-400);
  margin-bottom: 36px;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-cta-primary {
  background: var(--blue-600);
  color: var(--white);
  padding: 15px 32px;
  font-size: 16px;
  box-shadow: 0 6px 24px rgba(37,99,235,.45);
}
.btn-cta-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37,99,235,.55);
  text-decoration: none;
}
.btn-cta-secondary {
  background: rgba(255,255,255,.08);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.15);
  padding: 15px 32px;
  font-size: 16px;
  backdrop-filter: blur(8px);
}
.btn-cta-secondary:hover {
  background: rgba(255,255,255,.13);
  border-color: rgba(255,255,255,.3);
  transform: translateY(-2px);
  text-decoration: none;
}

/* ============================================================
   FOOTER
============================================================ */
footer {
  background: var(--slate-900);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 28px 24px;
  text-align: center;
}
.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--slate-500);
}
.footer-links a {
  color: var(--slate-400);
  transition: color .15s;
}
.footer-links a:hover { color: var(--blue-400); text-decoration: none; }
.footer-sep { color: var(--slate-700); }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 768px) {
  .nav { padding: 12px 20px; }
  .nav-link { display: none; }
  .steps-row {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .steps-row::before { display: none; }
  .hero { padding: 72px 20px 60px; }
  .section { padding: 64px 20px; }
  .section-full { padding: 64px 20px; }
}
@media (max-width: 480px) {
  .hero h1 { letter-spacing: -.5px; }
  .features-grid { grid-template-columns: 1fr; }
  .usecases-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: 1fr 1fr; }
}