/* ================================
   Variables
   ================================ */
:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #111820;
  --bg-card: #151c24;
  --bg-card-hover: #1a2330;
  --border: #1e2a3a;
  --border-hover: #2a3a50;
  --text-primary: #e2e8f0;
  --text-secondary: #8892a4;
  --text-muted: #5a6478;
  --accent: #00d4aa;
  --accent-hover: #00e8bb;
  --accent-dim: rgba(0, 212, 170, 0.1);
  --accent-glow: rgba(0, 212, 170, 0.15);
  --danger: #ff6b6b;
  --warning: #ffd93d;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 1100px;
  --nav-height: 64px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* ================================
   Layout
   ================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 48px;
  color: var(--text-primary);
}

/* ================================
   Navigation
   ================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  width: 100%;
}

.nav__brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.nav__brand:hover {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__link--cta {
  background: var(--accent-dim);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 6px;
  transition: background 0.2s ease;
}

.nav__link--cta:hover {
  background: var(--accent-glow);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ================================
   Hero
   ================================ */

.hero__title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.hero__subtitle {
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 400;
}

.hero__subtitle strong {
  color: var(--text-primary);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero__proof {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
}

.hero__proof-stat {
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  white-space: nowrap;
}

.hero__proof-unit {
  font-size: 24px;
  font-weight: 500;
}

.hero__proof-label {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
  text-align: center;
}

.hero {
  padding: 160px 0 120px;
  border-bottom: 1px solid var(--border);
}

.hero__container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.hero__title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.hero__subtitle {
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 400;
}

.hero__subtitle strong {
  color: var(--text-primary);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

/* ================================
   Buttons
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn--primary:hover {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn--secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.btn--large {
  padding: 16px 32px;
  font-size: 16px;
  width: 100%;
}

.btn--full {
  width: 100%;
}

/* ================================
   Services
   ================================ */
.services {
  background: var(--bg-secondary);
}

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

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all 0.25s ease;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.service-card__icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.service-card__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.service-card__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ================================
   Process
   ================================ */
.process__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process__step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.process__step:last-child {
  border-bottom: none;
}

.process__step-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 170, 0.2);
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.process__step-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.process__step-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ================================
   Pricing
   ================================ */
.pricing {
  background: var(--bg-secondary);
}

.pricing__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.pricing__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.pricing__card-header {
  margin-bottom: 32px;
}

.pricing__card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.pricing__card-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
}

.pricing__card-price {
  margin-bottom: 32px;
}

.pricing__card-amount {
  font-size: 56px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.pricing__card-unit {
  font-size: 14px;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

.pricing__card-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing__feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.pricing__feature:last-child {
  border-bottom: none;
}

.pricing__feature-check {
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
  width: 20px;
}

.pricing__card-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
  font-style: italic;
}

/* ================================
   Submission Form
   ================================ */
.submit {
  border-bottom: 1px solid var(--border);
}

.submit__intro {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  line-height: 1.6;
}

.submit__form {
  max-width: 640px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-input--textarea {
  resize: vertical;
  font-family: var(--font-sans);
  min-height: 120px;
}

.form-radio-group {
  display: flex;
  gap: 24px;
}

.form-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
}

.form-radio input[type="radio"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
}

.submit__note {
  text-align: center;
  margin-top: 28px;
  font-size: 14px;
  color: var(--text-muted);
}

.submit__email {
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ================================
   Footer
   ================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer__text {
  font-size: 13px;
  color: var(--text-muted);
}

/* ================================
   Success state
   ================================ */
.submit__success {
  display: none;
  text-align: center;
  padding: 48px 0;
}

.submit__success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.submit__success-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.submit__success-text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ================================
   Responsive
   ================================ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    gap: 0;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
  }

  .nav__links--open {
    display: flex;
  }

  .nav__link {
    padding: 14px 0;
    display: block;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }

  .nav__link--cta {
    margin-top: 8px;
  }

  .nav__toggle {
    display: flex;
  }

  .hero__title {
    font-size: 36px;
    letter-spacing: -1px;
  }

  .hero__subtitle {
    font-size: 17px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__proof {
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  .section-title {
    font-size: 28px;
  }

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

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

  .pricing__card {
    padding: 32px 24px;
  }

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

  .pricing__card-amount {
    font-size: 44px;
  }

  .process__step {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  section {
    padding: 64px 0;
  }

  .hero {
    padding: 120px 0 80px;
  }

  .hero__title {
    font-size: 30px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}