/* ====== TOKENS ====== */
:root {
  --purple:   #2d004b;
  --teal:     #00f5d4;
  --teal-dim: #00c9ae;
  --white:    #ffffff;
  --off-white:#f7f5fa;
  --text:     #1a1a2e;
  --muted:    #5a5470;
  --card-bg:  #ffffff;
  --border:   #e8e4f0;
  --radius:   12px;
  --shadow:   0 2px 16px rgba(45,0,75,.07);
  --shadow-lg:0 8px 40px rgba(45,0,75,.13);
  --max-w:    1100px;
  --transition: 0.22s ease;
}

/* ====== RESET ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               Oxygen, Ubuntu, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ====== LAYOUT ====== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ====== NAV ====== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(45,0,75,0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo img {
  width: 36px;
  height: 36px;
  background: var(--off-white);
  border-radius: 50%;
  padding: 3px;
  filter: drop-shadow(0 0 6px rgba(0,245,212,.55));
}
.nav-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,0.78);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--teal); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language toggle */
.lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.1);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.15);
}
.lang-btn {
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}
.lang-btn.active {
  background: var(--teal);
  color: var(--purple);
}
.lang-btn:hover:not(.active) {
  color: var(--white);
}

/* Hamburger for mobile */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ====== HERO ====== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--purple) 0%, #1a0030 60%, #0d001a 100%);
  position: relative;
  overflow: hidden;
  padding: 80px 0 60px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 50%, rgba(0,245,212,.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,245,212,.04) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,245,212,.12);
  border: 1px solid rgba(0,245,212,.25);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.78rem;
  color: var(--teal);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
h1 span {
  color: var(--teal);
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.7;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal);
  color: var(--purple);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 8px;
  transition: all var(--transition);
  border: 2px solid var(--teal);
}
.btn-primary:hover {
  background: var(--teal-dim);
  border-color: var(--teal-dim);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,245,212,.3);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.25);
  transition: all var(--transition);
  margin-left: 12px;
}
.btn-secondary:hover {
  border-color: var(--teal);
  color: var(--teal);
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-wrap {
  width: 280px;
  height: 280px;
  position: relative;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.07) 30%, transparent 72%);
}
.hero-logo-wrap img {
  width: 100%;
  height: 100%;
  filter:
    brightness(1.7)
    drop-shadow(0 0 2px rgba(255,255,255,.25))
    drop-shadow(0 0 24px rgba(0,245,212,.75))
    drop-shadow(0 0 64px rgba(0,245,212,.35));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* ====== SECTION COMMON ====== */
section { padding: 100px 0; }
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-dim);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--purple);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}
.section-lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 56px;
}

/* ====== SERVICES ====== */
.services { background: var(--off-white); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--purple), var(--teal));
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--purple), #5a007a);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}
.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ====== ABOUT ====== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-card {
  background: linear-gradient(135deg, var(--purple) 0%, #1a0030 100%);
  border-radius: 16px;
  padding: 40px;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}
.about-avatar {
  width: 72px;
  height: 72px;
  background: rgba(0,245,212,.15);
  border: 2px solid rgba(0,245,212,.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
}
.about-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.about-card .title {
  font-size: 0.85rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 20px;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.stat {
  background: rgba(255,255,255,.07);
  border-radius: 10px;
  padding: 14px 16px;
}
.stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,.55);
  line-height: 1.3;
}
.about-text .section-title { margin-top: 8px; }
.about-text p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.tech-tag {
  background: rgba(45,0,75,.07);
  border: 1px solid rgba(45,0,75,.12);
  color: var(--purple);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
}

/* ====== CONTACT ====== */
.contact { background: var(--purple); }
.contact .section-label { color: rgba(0,245,212,.7); }
.contact .section-title { color: var(--white); }
.contact .section-lead { color: rgba(255,255,255,.65); }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.contact-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: all var(--transition);
  text-decoration: none;
}
.contact-card:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(0,245,212,.35);
  transform: translateY(-2px);
}
.contact-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: rgba(0,245,212,.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.contact-card-body h4 {
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.contact-card-body p {
  font-size: 1rem;
  color: var(--white);
  font-weight: 500;
}
.contact-card-body small {
  display: block;
  font-size: 0.82rem;
  color: rgba(255,255,255,.45);
  margin-top: 4px;
}

/* ====== FOOTER ====== */
footer {
  background: #1a0030;
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-logo img {
  width: 28px;
  height: 28px;
  background: var(--off-white);
  border-radius: 50%;
  padding: 2px;
  filter: drop-shadow(0 0 4px rgba(0,245,212,.45));
}
.footer-logo-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255,255,255,.4);
}
.footer-meta {
  font-size: 0.78rem;
  color: rgba(255,255,255,.3);
  text-align: right;
}

/* ====== MOBILE ====== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-sub { margin: 0 auto 36px; }
  .hero-visual { display: none; }
  .hero-cta { justify-content: center; display: flex; flex-wrap: wrap; gap: 12px; }
  .btn-secondary { margin-left: 0; }
  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .footer-meta { text-align: center; }
}

@media (max-width: 600px) {
  section { padding: 72px 0; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}