/* =========================================================
   DevTrust Landing Page — Styles
   ========================================================= */

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

:root {
  --primary: #6C63FF;
  --primary-dark: #4B44D6;
  --secondary: #A78BFA;
  --accent: #06B6D4;
  --gradient: linear-gradient(135deg, #6C63FF 0%, #A78BFA 50%, #06B6D4 100%);
  --gradient-hero: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  --text: #1E1E2E;
  --text-muted: #6B7280;
  --bg: #FFFFFF;
  --bg-section: #F8F7FF;
  --border: #E5E7EB;
  --card-shadow: 0 4px 24px rgba(108, 99, 255, 0.12);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

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

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 99, 255, 0.4);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}
.btn-full { width: 100%; }

/* ----- Section Helpers ----- */
.section-tag {
  display: inline-block;
  background: rgba(108, 99, 255, 0.12);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

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

/* ----- Navbar ----- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 24px rgba(0,0,0,0.08);
}
.navbar.scrolled .nav-links a { color: var(--text); }
.navbar.scrolled .nav-links a:hover { color: var(--primary); }
.navbar.scrolled .logo { color: var(--text); }
.navbar.scrolled .logo span { color: var(--primary); }

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.logo span { color: var(--secondary); }

.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
}
.nav-links a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: #fff; }

.nav-cta {
  padding: 10px 24px;
  background: var(--gradient);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  margin-left: auto;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.badge {
  display: inline-block;
  background: rgba(108, 99, 255, 0.25);
  border: 1px solid rgba(108, 99, 255, 0.5);
  color: var(--secondary);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* Hero shapes */
.hero-shapes { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  filter: blur(80px);
}
.shape-1 {
  width: 600px; height: 600px;
  background: var(--primary);
  top: -200px; right: -100px;
  animation: float 8s ease-in-out infinite;
}
.shape-2 {
  width: 400px; height: 400px;
  background: var(--accent);
  bottom: -100px; left: -100px;
  animation: float 10s ease-in-out infinite reverse;
}
.shape-3 {
  width: 300px; height: 300px;
  background: var(--secondary);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: float 12s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.shape-3 { animation: floatCenter 12s ease-in-out infinite; }
@keyframes floatCenter {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, calc(-50% - 20px)) scale(1.05); }
}

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

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

.service-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  padding: 40px 32px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow);
  border-color: rgba(108, 99, 255, 0.2);
}
.service-card:hover::before { transform: scaleX(1); }

.service-card.featured {
  background: var(--gradient-hero);
  border-color: transparent;
  color: #fff;
}
.service-card.featured h3,
.service-card.featured p,
.service-card.featured .card-features li { color: rgba(255,255,255,0.9); }
.service-card.featured .card-link { color: var(--secondary); }
.service-card.featured::before { display: none; }
.service-card.featured:hover { box-shadow: 0 20px 60px rgba(108, 99, 255, 0.4); }

.featured-badge {
  display: inline-block;
  background: var(--gradient);
  color: #fff;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.card-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.card-icon svg { width: 28px; height: 28px; }
.ai-icon { background: rgba(108, 99, 255, 0.12); color: var(--primary); }
.cloud-icon { background: rgba(6, 182, 212, 0.2); color: var(--accent); }
.devops-icon { background: rgba(167, 139, 250, 0.12); color: var(--secondary); }
.service-card.featured .cloud-icon { background: rgba(6, 182, 212, 0.2); }

.service-card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 12px; }
.service-card p { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }

.card-features { margin-bottom: 24px; }
.card-features li {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.service-card.featured .card-features li { border-color: rgba(255,255,255,0.1); }
.card-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}
.service-card.featured .card-features li::before { color: var(--secondary); }

.card-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: gap var(--transition);
}
.card-link:hover { opacity: 0.8; }

/* ----- About ----- */
.about {
  padding: 100px 0;
  background: var(--bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  height: 400px;
}

.about-card-stack {
  position: relative;
  width: 100%;
  height: 100%;
}

.about-card {
  position: absolute;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--card-shadow);
  font-weight: 600;
  font-size: 1rem;
  animation: cardFloat 0.3s ease both;
  transition: transform var(--transition);
}
.about-card:hover { transform: translateY(-4px); }
.card-icon-sm { font-size: 1.8rem; }

.card-a { top: 40px; left: 0; width: 240px; animation-delay: 0.1s; }
.card-b { top: 50%; left: 50%; transform: translateX(-50%) translateY(-50%); width: 240px; }
.card-c { bottom: 40px; right: 0; width: 240px; animation-delay: 0.2s; }

@keyframes cardFloat {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.about-content h2 {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}
.about-content p { color: var(--text-muted); margin-bottom: 16px; font-size: 1rem; }

.about-values { margin: 28px 0 36px; }
.value-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 0.95rem;
  font-weight: 500;
}
.value-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
}

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

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 64px;
  align-items: start;
}

.contact-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 48px;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
}

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

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--bg);
  color: var(--text);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.12);
}
.form-group input.error,
.form-group textarea.error {
  border-color: #EF4444;
}

.field-error {
  color: #EF4444;
  font-size: 0.8rem;
  margin-top: 4px;
  min-height: 18px;
}

.form-success {
  margin-top: 16px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  display: none;
}
.form-success.show {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  color: #065F46;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 16px;
}

.info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.info-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.info-item strong { display: block; font-weight: 700; margin-bottom: 4px; }
.info-item p { color: var(--text-muted); font-size: 0.95rem; }

/* ----- Footer ----- */
.footer {
  background: var(--gradient-hero);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer .logo { font-size: 1.3rem; }
.footer-copy { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: #fff; }

/* ----- Scroll Animation ----- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-visual { height: 260px; }
  .card-a { top: 0; left: 0; }
  .card-b { top: auto; bottom: 0; left: auto; right: 50%; transform: none; }
  .card-c { bottom: 0; right: 0; }
  .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 32px 24px; }

  .nav-links, .nav-cta { display: none; }
  .hamburger { display: block; }
  .navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(15, 12, 41, 0.97);
    padding: 24px;
    gap: 16px;
  }
  .navbar.menu-open .nav-links a { color: #fff; font-size: 1.1rem; }
  .navbar.scrolled .hamburger { color: var(--text); }

  .hero-stats { gap: 28px; }
  .hero-actions { flex-direction: column; align-items: center; }

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