:root {
  --bg: #12151f;
  --surface: #1a1e2e;
  --gradient: linear-gradient(135deg, #f97316, #e11d48);
  --text: #ffffff;
  --text-secondary: #9ca3af;
  --glow: 0 0 24px rgba(249, 115, 22, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

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

/* Buttons */
.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--gradient);
  color: #ffffff;
  padding: 12px 28px;
  font-size: 0.95rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(18, 21, 31, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

.nav {
  display: none;
  gap: 32px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--text);
}

.nav-cta {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 80px 0;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  pointer-events: none;
}

.hero-glow-orange {
  top: 20%;
  left: 10%;
  width: 420px;
  height: 420px;
  background: rgba(249, 115, 22, 0.15);
}

.hero-glow-red {
  top: 30%;
  right: 10%;
  width: 320px;
  height: 320px;
  background: rgba(225, 29, 72, 0.1);
}

.hero-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-subline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
}

/* Sections */
.section {
  padding: 90px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 50px;
}

/* What We Do */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 32px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow);
  border-color: rgba(249, 115, 22, 0.4);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.portfolio-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow);
  border-color: rgba(249, 115, 22, 0.4);
}

.portfolio-image {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.18), rgba(225, 29, 72, 0.18));
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.portfolio-info {
  padding: 20px;
}

.portfolio-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.portfolio-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* How It Works */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.step {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow);
  border-color: rgba(249, 115, 22, 0.4);
}

.step-number {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Contact */
.contact-section {
  text-align: center;
}

.contact-inner .section-title {
  margin-bottom: 16px;
}

.contact-subline {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* Footer */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 28px 0;
  text-align: center;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (min-width: 640px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.4rem;
  }

  .section-title {
    font-size: 2.5rem;
  }
}

@media (min-width: 900px) {
  .nav {
    display: flex;
  }

  .nav-cta {
    display: inline-block;
  }

  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-title {
    font-size: 4rem;
  }
}