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

:root {
  --color-bg: #0b0f19;
  --color-surface: #111827;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-border: #1e293b;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --max-width: 1120px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ── Utility ──────────────────────────────────────────────────── */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 48px;
}

/* ── Header / Nav ─────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-img {
  height: 36px;
  width: auto;
  border-radius: 6px;
}

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

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

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

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding-top: 64px;
}

.hero .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: 120px;
  height: auto;
  border-radius: 12px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 720px;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--color-accent);
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 40px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  margin-left: 12px;
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ── About ────────────────────────────────────────────────────── */
.about {
  background: var(--color-surface);
}

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

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.stat-row {
  display: flex;
  gap: 48px;
  margin-top: 32px;
}

.stat h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ── Services ─────────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

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

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.925rem;
}

/* ── Contact ──────────────────────────────────────────────────── */
.contact {
  background: var(--color-surface);
}

.contact-wrapper {
  max-width: 560px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form label {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 6px;
  display: block;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

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

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

.form-status {
  font-size: 0.9rem;
  margin-top: 4px;
}

.form-status--success {
  color: #22c55e;
}

.form-status--error {
  color: #ef4444;
}

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 15, 25, 0.95);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }

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

  .nav-toggle {
    display: block;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .stat-row {
    gap: 24px;
  }

  .btn-outline {
    margin-left: 0;
    margin-top: 12px;
  }

  .hero .btn-group {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}