:root {
  --bg: #0f0d0d;
  --bg-alt: #161211;
  --text: #f3ece7;
  --text-muted: #b8aca4;
  --orange: #ff6a2b;
  --red: #d92b2b;
  --gradient: linear-gradient(135deg, #ffb347 0%, #ff6a2b 45%, #d92b2b 100%);
  --border: rgba(255, 138, 61, 0.18);
  --max-width: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

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

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

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

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 13, 13, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  color: #1a0f08;
  font-size: 14px;
  font-weight: 800;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.logo-text { font-size: 18px; }

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
}

.nav a { color: var(--text-muted); transition: color 0.2s; }
.nav a:hover { color: var(--text); }

.nav-cta {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--gradient);
  color: #1a0f08 !important;
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
  text-align: center;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(255,106,43,0.25) 0%, rgba(217,43,43,0.08) 45%, transparent 70%);
  pointer-events: none;
}

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

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 16px;
}

.eyebrow.center, h2.center { text-align: center; display: block; }

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 24px;
}

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

.hero-sub {
  max-width: 620px;
  margin: 0 auto 36px;
  color: var(--text-muted);
  font-size: 18px;
}

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

.btn {
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  display: inline-block;
  transition: transform 0.2s, opacity 0.2s;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--gradient);
  color: #1a0f08;
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--orange); }

/* Stats */
.stats { padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-number {
  display: block;
  font-size: 40px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { color: var(--text-muted); font-size: 14px; }

/* Sections */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  margin-bottom: 20px;
}

.section p { color: var(--text-muted); margin-bottom: 16px; max-width: 640px; }
.section .center { margin-left: auto; margin-right: auto; text-align: center; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.about-visual { display: flex; justify-content: center; }

.orbit-card {
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.orbit-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 40px rgba(255, 106, 43, 0.45));
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.cloud-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  transition: transform 0.2s, border-color 0.2s;
}
.cloud-card:hover {
  transform: translateY(-6px);
  border-color: var(--orange);
}

.cloud-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient);
  color: #1a0f08;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.cloud-card h3 { font-size: 18px; margin-bottom: 10px; }
.cloud-card p { font-size: 14px; margin-bottom: 0; }

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 60px;
  align-items: center;
}
.cert-visual {
  text-align: center;
  padding: 48px 24px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
}
.cert-number {
  display: block;
  font-size: 64px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cert-caption { color: var(--text-muted); }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info { list-style: none; margin-top: 24px; }
.contact-info li { margin-bottom: 10px; color: var(--text-muted); }
.contact-info strong { color: var(--text); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
}
.contact-form input,
.contact-form textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.contact-form button { align-self: flex-start; border: none; cursor: pointer; }

/* WhatsApp */
.contact-info li {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.whatsapp-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  line-height: 1;
  transition: color 0.2s;
}
.whatsapp-link:hover { color: #25D366; }
.whatsapp-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  border-radius: 50%;
  z-index: 200;
  transition: transform 0.2s;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg {
  width: 100%;
  height: 100%;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer p { color: var(--text-muted); font-size: 14px; }

/* Responsive */
@media (max-width: 900px) {
  .about-grid, .cert-grid, .contact-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 18px;
  }
  .nav.nav-open { display: flex; }
  .nav-toggle { display: flex; }
  .cards-grid { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 70px; }
}