/* ============================================
   DriftSense — Futuristic UI
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:          #060A13;
  --bg-surface:  #0C1222;
  --bg-card:     rgba(12, 18, 34, 0.7);
  --border:      rgba(255, 255, 255, 0.05);
  --accent:      #085927;
  --accent-light:#0A7A35;
  --accent-glow: rgba(8, 89, 39, 0.4);
  --accent-dim:  rgba(8, 89, 39, 0.12);
  --blue:        #2563EB;
  --text:        #E8EDF5;
  --text-dim:    #6B7A90;
  --radius:      14px;
  --nav-h:       72px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; }

/* ---------- Animated grid background ---------- */
#grid-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 168, 69, 0.15);
}

.section-title {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.7;
}

/* ---------- Gradient dividers ---------- */
.section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 168, 69, 0.2), transparent);
}
.contact::after, .footer::after { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  box-shadow: 0 0 30px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.12);
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px var(--accent-glow), 0 8px 32px rgba(0, 168, 69, 0.2), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-primary:hover::before { opacity: 1; }

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent-light);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, rgba(0,168,69,0), rgba(0,168,69,0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: background 0.4s;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 168, 69, 0.15);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 168, 69, 0.05);
}
.card:hover::before {
  background: linear-gradient(135deg, rgba(0,168,69,0.4), rgba(37,99,235,0.2));
}

/* ---------- Fade-in animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 0.15s; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 0.25s; }

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  transition: all 0.4s;
}
.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 19, 0.7);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  z-index: -1;
  transition: background 0.4s;
}
.nav.scrolled::before {
  background: rgba(6, 10, 19, 0.92);
}
.nav.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img {
  border-radius: 6px;
}
.nav-logo .accent { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color 0.25s;
  position: relative;
}
.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav-links a:not(.nav-cta):hover { color: var(--text); }
.nav-links a:not(.nav-cta):hover::after { transform: scaleX(1); }

.nav-cta { margin-left: 8px; }
.btn-nav {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, #085927, #0A7A35);
  color: #fff;
  box-shadow: 0 0 24px rgba(8, 89, 39, 0.5), inset 0 1px 0 rgba(255,255,255,0.12);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  position: relative;
  z-index: 10;
}
.btn-nav:hover {
  color: #fff;
  box-shadow: 0 0 50px rgba(8, 89, 39, 0.5), 0 8px 32px rgba(8, 89, 39, 0.25), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-nav::before {
  display: none;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  color: var(--text);
  font-size: 24px;
  padding: 4px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 800px; height: 800px;
  border-radius: 50%;
  filter: blur(180px);
  pointer-events: none;
}
.hero-glow--green {
  background: var(--accent);
  top: -20%; right: -15%;
  opacity: 0.12;
  animation: pulseGlow 8s ease-in-out infinite alternate;
}
.hero-glow--blue {
  background: var(--blue);
  bottom: -25%; left: -12%;
  opacity: 0.07;
  animation: pulseGlow 10s ease-in-out infinite alternate-reverse;
}

@keyframes pulseGlow {
  0% { opacity: 0.07; transform: scale(1); }
  100% { opacity: 0.15; transform: scale(1.15); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(38px, 5.5vw, 62px);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: 28px;
  letter-spacing: -0.03em;
}
.hero-text h1 .highlight {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #4ADE80 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Video embed */
.hero-visual { position: relative; }

.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid rgba(8, 89, 39, 0.2);
  box-shadow: 0 0 80px rgba(8, 89, 39, 0.08), 0 20px 60px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.video-thumb {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 10, 19, 0.4);
  transition: background 0.3s;
}
.video-embed:hover .video-play-overlay {
  background: rgba(6, 10, 19, 0.25);
}
.video-play-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(8, 89, 39, 0.85);
  border: 2px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 0 40px var(--accent-glow);
}
.video-play-btn svg {
  margin-left: 3px;
}
.video-embed:hover .video-play-btn {
  transform: scale(1.1);
  box-shadow: 0 0 60px var(--accent-glow);
}
.video-embed.playing {
  cursor: default;
}

/* ============================================
   Problem
   ============================================ */
.problem { text-align: center; }
.problem .section-subtitle { margin: 0 auto 56px; max-width: 720px; }

.problem-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
  max-width: 840px;
  margin: 0 auto;
}

.problem-card {
  padding: 44px 32px;
  text-align: center;
}
.problem-card .icon {
  font-size: 44px;
  margin-bottom: 20px;
  filter: grayscale(0.3);
}
.problem-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.problem-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.problem-vs {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-dim);
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 168, 69, 0.2);
}

/* ============================================
   How It Works
   ============================================ */
.how-it-works { text-align: center; }
.how-it-works .section-subtitle { margin: 0 auto 72px; }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

.step {
  text-align: center;
  padding: 36px 24px;
  position: relative;
}
.step-number {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-dim), rgba(37, 99, 235, 0.06));
  border: 1px solid rgba(0, 168, 69, 0.2);
  color: var(--accent);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
}
.step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.step p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
}

/* Connector line */
.steps::before {
  content: '';
  position: absolute;
  top: 62px;
  left: 18%;
  right: 18%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,168,69,0.25), rgba(0,168,69,0.25), transparent);
  z-index: 0;
}

.recipe-callout {
  margin-top: 56px;
  padding: 24px 36px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-dim), rgba(37, 99, 235, 0.04));
  border: 1px solid rgba(0, 168, 69, 0.12);
  display: inline-block;
}
.recipe-callout p {
  font-size: 15px;
  color: var(--text-dim);
}
.recipe-callout strong { color: var(--accent-light); }

/* ============================================
   Features
   ============================================ */
.features { text-align: center; }
.features .section-subtitle { margin: 0 auto 72px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  text-align: left;
  position: relative;
  overflow: hidden;
}
.feature-card .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-dim), rgba(37, 99, 235, 0.06));
  border: 1px solid rgba(0, 168, 69, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
  font-size: 20px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.feature-card:hover .icon {
  border-color: rgba(0, 168, 69, 0.35);
  box-shadow: 0 0 20px rgba(0, 168, 69, 0.1);
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
}

.feature-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-dim), rgba(0, 168, 69, 0.15));
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
  border: 1px solid rgba(0, 168, 69, 0.2);
}

.feature-category {
  grid-column: 1 / -1;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 20px 0 4px;
  text-align: left;
  opacity: 0.5;
}

/* ============================================
   In-Customer-Cloud
   ============================================ */
.cloud-section .cloud-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.cloud-text .section-subtitle { margin-bottom: 36px; }

.cloud-points {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.cloud-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  color: var(--text-dim);
}
.cloud-point .check {
  color: var(--accent);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  width: 22px; height: 22px;
  border-radius: 6px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* Architecture diagram */
.arch-diagram {
  background: linear-gradient(135deg, #0F1A2E, #121E35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 40px;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.arch-boundary {
  border: 1.5px solid rgba(30, 180, 90, 0.35);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  background: rgba(30, 180, 90, 0.04);
}
.arch-boundary-label {
  position: absolute;
  top: -11px;
  left: 20px;
  background: #121E35;
  padding: 2px 14px;
  font-size: 11px;
  font-weight: 600;
  color: #2ECC71;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  border: 1px solid rgba(30, 180, 90, 0.3);
}
.arch-services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.arch-service {
  background: rgba(30, 180, 90, 0.06);
  border: 1px solid rgba(30, 180, 90, 0.18);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  color: #B0BEC5;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.arch-service:hover {
  border-color: rgba(30, 180, 90, 0.4);
  color: #E8EDF5;
  background: rgba(30, 180, 90, 0.1);
}
.arch-agent {
  text-align: center;
  padding: 18px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(30, 180, 90, 0.15), rgba(37, 99, 235, 0.08));
  border-radius: 10px;
  border: 1px solid rgba(30, 180, 90, 0.3);
}
.arch-agent-label {
  font-size: 14px;
  font-weight: 600;
  color: #2ECC71;
}
.arch-agent-sub {
  font-size: 12px;
  color: #8FA4B5;
  margin-top: 4px;
}

.arch-external {
  text-align: center;
  margin-top: 20px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 13px;
  color: #8FA4B5;
  background: rgba(255, 255, 255, 0.02);
}
.arch-arrow {
  text-align: center;
  color: #2ECC71;
  font-size: 14px;
  margin: 10px 0;
  opacity: 0.7;
  letter-spacing: 1px;
}

/* ============================================
   Use Cases
   ============================================ */
.use-cases { text-align: center; }
.use-cases .section-subtitle { margin: 0 auto 72px; }

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.use-case-card {
  text-align: left;
}
.use-case-card .role {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 168, 69, 0.12);
}
.use-case-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.35;
}
.use-case-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ============================================
   Contact
   ============================================ */
.contact { text-align: center; }
.contact .section-subtitle { margin: 0 auto 56px; }

.contact-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row { display: flex; gap: 14px; }

.form-input {
  width: 100%;
  padding: 15px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}
.form-input:focus {
  border-color: rgba(0, 168, 69, 0.4);
  box-shadow: 0 0 20px rgba(0, 168, 69, 0.08);
}
.form-input::placeholder { color: var(--text-dim); opacity: 0.5; }

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  align-self: center;
  margin-top: 8px;
  min-width: 200px;
}

.contact-social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}
.contact-social a {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transition: all 0.3s;
}
.contact-social a:hover {
  color: var(--accent);
  border-color: rgba(0, 168, 69, 0.3);
  background: var(--accent-dim);
  box-shadow: 0 0 20px rgba(0, 168, 69, 0.08);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
}
.footer-logo .accent { color: var(--accent); }

.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color 0.25s;
}
.footer-links a:hover { color: var(--text); }

.footer-copy {
  font-size: 13px;
  color: var(--text-dim);
  opacity: 0.5;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .cloud-section .cloud-layout { grid-template-columns: 1fr; gap: 48px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps::before { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(6, 10, 19, 0.96);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open .nav-cta { margin-left: 0; }
  .nav-toggle { display: block; }

  .hero-text h1 { font-size: 32px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; }

  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .problem-vs { display: none; }

  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }

  .use-cases-grid { grid-template-columns: 1fr; }

  .form-row { flex-direction: column; }

  .footer-inner { flex-direction: column; text-align: center; }
}