/* ============================================================
   Aether Technologies — Modern IT Services Site
   Clean, professional, fully responsive
   ============================================================ */

:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #dbeafe;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg:
    0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.04);
  --font:
    "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --container: 1140px;
  --header-h: 72px;
}

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

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

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

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

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

ul {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--primary);
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.125rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgb(37 99 235 / 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border);
}

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

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

.btn-white:hover {
  background: var(--accent-soft);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
}

.logo-slogan {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.nav-desktop a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--accent);
}

.nav-cta {
  margin-left: 8px;
  color: white !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  margin: 5px 0;
  transition: 0.2s;
}

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: white;
  padding: 32px 24px;
  flex-direction: column;
  gap: 8px;
  z-index: 99;
}

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

.nav-mobile a {
  font-size: 1.15rem;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--primary);
}

.nav-mobile .btn {
  margin-top: 24px;
  width: 100%;
}

/* ---------- Hero ---------- */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--primary);
  margin-bottom: 20px;
}

.hero-content .lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 480px;
}

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

.hero-visual {
  position: relative;
}

.hero-card {
  background: white;
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-soft);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.4rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-item {
  text-align: center;
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Services cards ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all 0.25s ease;
}

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

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary);
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---------- Features / Why us ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.feature-item {
  display: flex;
  gap: 16px;
}

.feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.feature-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- About page ---------- */
.about-hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
}

.about-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.about-hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  text-align: center;
  padding: 32px 20px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.value-card .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.value-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  color: var(--text-muted);
  font-size: 0.95rem;
  white-space: pre-line;
}

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

.contact-form-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}

.contact-form-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-form-card > p {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.15s;
  background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(37 99 235 / 0.12);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

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

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--bg-dark);
  color: white;
  border-radius: 20px;
  padding: 56px 48px;
  text-align: center;
  margin: 0 24px;
}

.cta-banner h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-banner p {
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 28px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #2f3034;
  color: #cbd5e1;
  padding: 64px 0 32px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo-link {
  margin-bottom: 16px;
}

.footer-brand .logo-name {
  color: white;
}

.footer-brand .logo-slogan {
  color: #94a3b8;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #94a3b8;
  max-width: 280px;
}

.footer-col h4 {
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: #94a3b8;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: white;
}

.footer-contact p {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 10px;
  white-space: pre-line;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* ---------- Page header (inner pages) ---------- */
.page-header {
  padding: 72px 0 48px;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- Services detail ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-soft);
  color: #bfdbfe;
}

.service-detail h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-detail p {
  color: var(--text-muted);
  margin-bottom: 12px;
}

.service-detail ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-detail li {
  background: var(--bg-alt);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid,
  .features-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

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

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

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

  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 56px 0;
  }

  .hero {
    padding: 64px 0 48px;
  }

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

  .services-grid,
  .values-grid,
  .footer-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .cta-banner {
    padding: 40px 24px;
    margin: 0 16px;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

  .logo-slogan {
    display: none;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Simple icons via unicode / emoji for zero dependency */
.icon-cloud::before {
  content: "☁";
}
.icon-shield::before {
  content: "🛡";
}
.icon-server::before {
  content: "🖥";
}
.icon-code::before {
  content: "</>";
}
.icon-chart::before {
  content: "📊";
}
.icon-users::before {
  content: "👥";
}
.icon-check::before {
  content: "✓";
}
.icon-mail::before {
  content: "✉";
}
.icon-phone::before {
  content: "☎";
}
.icon-pin::before {
  content: "📍";
}
.icon-rocket::before {
  content: "🚀";
}
.icon-lock::before {
  content: "🔒";
}
.icon-gear::before {
  content: "⚙";
}
.icon-light::before {
  content: "💡";
}
.icon-heart::before {
  content: "💙";
}