:root {
  --bg: #0a0e17;
  --bg-surface: #111827;
  --bg-elevated: #1a2236;
  --fg: #e8ecf4;
  --fg-muted: #8896ab;
  --fg-dim: #5a6a80;
  --accent: #06d6a0;
  --accent-glow: rgba(6, 214, 160, 0.15);
  --accent-2: #118ab2;
  --accent-3: #ffd166;
  --gradient-ocean: linear-gradient(135deg, #0a0e17 0%, #0d1929 40%, #112240 100%);
  --gradient-accent: linear-gradient(135deg, #06d6a0, #118ab2);
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Outfit', sans-serif;
  --mono: 'Space Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(20px);
  background: rgba(10, 14, 23, 0.8);
  border-bottom: 1px solid rgba(136, 150, 171, 0.08);
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--accent);
}

.nav-tag {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid rgba(6, 214, 160, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  background: var(--gradient-ocean);
}

.hero::before {
  content: '';
  position: absolute;
  top: 15%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 214, 160, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(17, 138, 178, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-eyebrow::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: normal;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(136, 150, 171, 0.1);
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-num {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---- PROBLEM ---- */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-surface);
  position: relative;
}

.problem::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(6, 214, 160, 0.2), transparent);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.problem h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  max-width: 700px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(136, 150, 171, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2.5rem;
}

.problem-card {
  background: var(--bg-elevated);
  padding: 2rem;
}

.problem-card-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.problem-card p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- FEATURES ---- */
.features {
  padding: 6rem 2rem;
  background: var(--bg);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.features h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.feature-item {
  background: var(--bg-surface);
  border: 1px solid rgba(136, 150, 171, 0.06);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.feature-item:hover {
  border-color: rgba(6, 214, 160, 0.15);
}

.feature-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-item:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: var(--accent-glow);
  border-radius: 12px;
  margin-bottom: 1.25rem;
}

.feature-item h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

.feature-highlight {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem;
  background: linear-gradient(135deg, var(--bg-surface), var(--bg-elevated));
}

.feature-highlight-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-highlight-text p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

.feature-highlight-visual {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.fh-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(6, 214, 160, 0.05);
  border-radius: 8px;
  border-left: 2px solid var(--accent);
}

.fh-line-time {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  min-width: 52px;
}

.fh-line-text {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ---- HOW ---- */
.how {
  padding: 6rem 2rem;
  background: var(--bg-surface);
  position: relative;
}

.how::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(17, 138, 178, 0.2), transparent);
}

.how-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.how-step {
  position: relative;
  padding-top: 2rem;
}

.how-step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.how-step-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.how-step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.how-step p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 2rem;
  background: var(--gradient-ocean);
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 214, 160, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.closing-inner {
  max-width: 650px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.closing h2 em {
  font-style: normal;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing p {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* ---- FOOTER ---- */
.footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid rgba(136, 150, 171, 0.06);
}

.footer p {
  font-size: 0.75rem;
  color: var(--fg-dim);
  font-family: var(--mono);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero {
    padding: 7rem 1.5rem 3rem;
    min-height: auto;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
  }

  .feature-highlight {
    grid-template-columns: 1fr;
    padding: 2rem;
  }

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

  .nav {
    padding: 1rem 1.25rem;
  }

  .problem,
  .features,
  .how {
    padding: 4rem 1.5rem;
  }

  .closing {
    padding: 5rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-sub {
    font-size: 1.05rem;
  }
}