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

:root {
  --bg: #0d0f12;
  --bg-elevated: #141720;
  --bg-card: #1a1d26;
  --border: #2a2d38;
  --text: #e0e0e6;
  --text-muted: #8a8f9e;
  --accent: #00c4ff;
  --accent-dim: rgba(0, 196, 255, 0.15);
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* === Nav === */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a:not(.btn):hover {
  color: var(--text);
}

.nav-links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-links a:not(.btn):hover::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: var(--font-body);
}

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

.btn-primary:hover {
  background: #33d1ff;
  box-shadow: 0 0 20px rgba(0, 196, 255, 0.3);
}

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

.btn-secondary:hover {
  background: var(--accent-dim);
}

.btn-nav {
  background: var(--accent);
  color: var(--bg);
  padding: 8px 20px;
}

.btn-nav:hover {
  background: #33d1ff;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s;
}

/* === Hero === */
#hero {
  padding: 140px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

#hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.subheadline {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

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

/* Terminal */
.terminal-window {
  background: #0a0c10;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 20px;
  min-height: 200px;
}

.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--text-muted);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s, transform 0.3s;
}

.terminal-line.visible {
  opacity: 1;
  transform: translateY(0);
}

.terminal-line.success {
  color: #28c840;
}

/* === Problem Statement === */
#features {
  padding: 120px 0;
  background: var(--bg-elevated);
}

#features h2,
#how-it-works h2,
#differentiation h2,
#msp h2,
#pricing h2,
#contact h2 {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  letter-spacing: -0.5px;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px 32px;
  text-align: center;
}

.stat-card-offset {
  transform: translateY(12px);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.section-quote {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 640px;
  margin: 0 auto;
}

/* === How It Works === */
#how-it-works {
  padding: 120px 0;
}

.use-case-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px 32px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.use-case-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(0, 196, 255, 0.08);
}

.use-case-icon {
  font-size: 1.75rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.use-case-card h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.use-case-card p {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* === Differentiation Table === */
#differentiation {
  padding: 120px 0;
  background: var(--bg-elevated);
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
}

thead {
  border-bottom: 2px solid var(--border);
}

th {
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: left;
  padding: 16px 20px;
  color: var(--text);
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

tr:last-child td {
  border-bottom: none;
}

.positive {
  color: #28c840;
  font-weight: 500;
}

.negative {
  color: #ff5f57;
}

.neutral {
  color: var(--text-muted);
}

/* === MSP Section === */
#msp {
  padding: 120px 0;
}

.msp-content {
  max-width: 720px;
  margin: 0 auto;
}

.msp-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  text-align: center;
}

.msp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 480px;
  margin: 0 auto;
}

.msp-list li {
  padding-left: 28px;
  position: relative;
  font-size: 0.95rem;
  color: var(--text);
}

.msp-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* === Pricing === */
#pricing {
  padding: 120px 0;
  background: var(--bg-elevated);
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px rgba(0, 196, 255, 0.1);
  position: relative;
}

.pricing-card h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.pricing-amount {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 24px;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-card li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.pricing-card li:last-child {
  border-bottom: none;
}

/* === Contact === */
#contact {
  padding: 120px 0;
}

.contact-subhead {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-style: italic;
}

#contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

input, textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--text);
  font-family: var(--font-body);
  transition: border-color 0.2s;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
}

#contact-form .btn {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

/* === Footer === */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-style: italic;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.footer-copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* === Fade-in animation === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* === Responsive === */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  #hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  #hero {
    padding: 120px 0 80px;
    min-height: auto;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .stat-cards,
  .use-case-cards,
  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .stat-card-offset {
    transform: none;
  }

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

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

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.65rem;
  }

  .stat-value {
    font-size: 1.75rem;
  }

  section {
    padding: 80px 0;
  }
}