/* =============================================
   APERION LABS — MAIN STYLESHEET
   ============================================= */

:root {
  --navy:       #0d1b3e;
  --navy-mid:   #132248;
  --blue:       #1a3a6e;
  --accent:     #00c4cc;
  --accent-2:   #0077ff;
  --teal:       #00e5d4;
  --white:      #ffffff;
  --off-white:  #e8edf5;
  --muted:      #8898aa;
  --border:     rgba(255,255,255,0.08);
  --glass-bg:   rgba(255,255,255,0.04);
  --glass-border: rgba(0,196,204,0.15);

  --font-body:  'Inter', sans-serif;
  --font-head:  'Space Grotesk', sans-serif;

  --radius:     16px;
  --radius-sm:  8px;
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);

  --section-pad: 120px;
  --container:   1200px;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--off-white);
  overflow-x: hidden;
  line-height: 1.7;
}

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

/* ── Utilities ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--accent);
  display: block;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 24px;
}
.section-title.centered { text-align: center; }

.section-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 64px;
  text-align: center;
  line-height: 1.7;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), backdrop-filter var(--transition);
}
.navbar.scrolled {
  background: rgba(13,27,62,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 40px;
  width: auto;
  transition: opacity var(--transition);
}
.nav-logo:hover img { opacity: 0.85; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--off-white);
  transition: color var(--transition);
  position: relative;
}
.nav-links a:not(.btn-nav)::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-links a:not(.btn-nav):hover { color: var(--accent); }
.nav-links a:not(.btn-nav):hover::after { transform: scaleX(1); }

.btn-nav {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--white) !important;
  transition: opacity var(--transition), transform var(--transition);
}
.btn-nav:hover { opacity: 0.9; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 120px 32px 80px;
  max-width: var(--container);
  margin: 0 auto;
  gap: 64px;
}

#particleCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,196,204,0.1);
  border: 1px solid rgba(0,196,204,0.3);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 32px;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--white);
  margin-bottom: 28px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 44px;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 32px rgba(0,196,204,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0,196,204,0.4);
}
.btn-primary svg { width: 18px; height: 18px; }
.btn-primary.btn-full { width: 100%; justify-content: center; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--off-white);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,196,204,0.05);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}
.stat { text-align: center; }
.stat-number {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
}
.stat > span:nth-child(2) {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
}
.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
  letter-spacing: 0.04em;
}
.stat-divider {
  width: 1px; height: 40px;
  background: var(--border);
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-logo-glow {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-glow::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,196,204,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: glowPulse 4s ease-in-out infinite;
}
.hero-logo-glow::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,119,255,0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: glowPulse 4s ease-in-out infinite 2s;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

.hero-logo-img {
  width: 320px;
  height: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 40px rgba(0,196,204,0.3));
  animation: floatLogo 6s ease-in-out infinite;
}
@keyframes floatLogo {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-mid) 100%);
}

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

.about-text p {
  color: var(--muted);
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-values {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.value-icon {
  color: var(--accent);
  font-size: 0.6rem;
  margin-top: 6px;
  flex-shrink: 0;
}
.value-item strong {
  display: block;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 2px;
}
.value-item span {
  font-size: 0.9rem;
  color: var(--muted);
}

.about-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about-card {
  padding: 36px;
}
.about-card-offset { margin-left: 40px; }

.about-card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.about-card h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 10px;
}
.about-card p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.7;
}

/* =============================================
   SERVICES
   ============================================= */
.services {
  padding: var(--section-pad) 0;
}

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

.service-card {
  padding: 40px 36px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,196,204,0.35);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(0,196,204,0.1);
}

.service-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(0,196,204,0.15), rgba(0,119,255,0.15));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid rgba(0,196,204,0.2);
}
.service-icon svg {
  width: 24px; height: 24px;
  stroke: var(--accent);
}

.service-card h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--white);
  margin-bottom: 12px;
}
.service-card > p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-features li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
}
.service-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

/* =============================================
   WHY US
   ============================================= */
.why-us {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy) 100%);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 64px;
}

.why-item {
  position: relative;
  padding-top: 16px;
}
.why-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.why-number {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(0,196,204,0.12);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.why-item h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 12px;
}
.why-item p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
}

/* =============================================
   TECH STACK
   ============================================= */
.tech-section {
  padding: var(--section-pad) 0;
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 16px;
}

.tech-category h4 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  padding: 6px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--off-white);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  cursor: default;
}
.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,196,204,0.08);
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, var(--navy) 0%, #0a1228 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info p {
  color: var(--muted);
  margin-bottom: 40px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.contact-icon {
  width: 44px; height: 44px;
  background: rgba(0,196,204,0.1);
  border: 1px solid rgba(0,196,204,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg {
  width: 20px; height: 20px;
  stroke: var(--accent);
}
.contact-item strong {
  display: block;
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-item span {
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-form {
  padding: 48px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--off-white);
  letter-spacing: 0.03em;
}
.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(136,152,170,0.6); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(0,196,204,0.05);
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 20px;
  background: rgba(0,229,212,0.1);
  border: 1px solid rgba(0,229,212,0.3);
  border-radius: var(--radius-sm);
  color: var(--teal);
  font-size: 0.9rem;
  text-align: center;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #080f1f;
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-logo {
  height: 36px;
  width: auto;
  margin-bottom: 16px;
  opacity: 0.9;
}
.footer-brand p {
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-tagline {
  margin-top: 8px;
  font-size: 0.85rem !important;
  line-height: 1.6 !important;
}

.footer-links h5 {
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 0.88rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.footer-bottom p {
  font-size: 0.82rem;
  color: var(--muted);
}
.footer-legal {
  display: flex;
  gap: 24px;
}
.footer-legal a {
  font-size: 0.82rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-legal a:hover { color: var(--off-white); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .tech-categories { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 900px) {
  :root { --section-pad: 80px; }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 140px;
    gap: 48px;
  }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .hero-logo-img { width: 220px; }
  .hero-logo-glow::before { width: 280px; height: 280px; }
  .hero-logo-glow::after { width: 200px; height: 200px; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-card-offset { margin-left: 0; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(13,27,62,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    font-size: 1.2rem;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; z-index: 1001; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .tech-categories { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
}