/* ===== Variables ===== */
:root {
  --color-bg: #0a0e17;
  --color-bg-alt: #111827;
  --color-bg-card: #1a2234;
  --color-surface: #1e293b;
  --color-primary: #06b6d4;
  --color-primary-dark: #0891b2;
  --color-accent: #8b5cf6;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-border: #334155;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.3s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.header.scrolled { border-bottom-color: var(--color-border); }

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

.nav__logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.nav__logo:hover { color: var(--color-primary); }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav__link:hover { color: var(--color-text); }
.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-bg) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
}
.nav__link--cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-bg) !important;
}

.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(--color-text);
  transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-bg);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
}
.btn--outline {
  border-color: var(--color-border);
  color: var(--color-text);
  background: transparent;
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--lg { padding: 1rem 2.5rem; font-size: 1.05rem; }
.btn--full { width: 100%; }
.btn--locked {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.35);
}

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

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
}
.hero__glow--1 {
  width: 500px;
  height: 500px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
}
.hero__glow--2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -50px;
  left: -100px;
  opacity: 0.25;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--color-primary);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.hero__stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}
.hero__stat-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}
.hero__stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.section__header {
  text-align: center;
  margin-bottom: 4rem;
}
.section__tag {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section__subtitle {
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  font-size: 1.05rem;
}

/* ===== About ===== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about__text p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}
.about__text strong { color: var(--color-text); }

.about__features {
  margin-top: 2rem;
}
.about__features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.about__features svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.about__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about__card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.about__card-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.about__card-dot--red { background: #ef4444; }
.about__card-dot--yellow { background: #eab308; }
.about__card-dot--green { background: #22c55e; }
.about__card-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.about__card-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}
.about__card-body code { display: block; }
.code-keyword { color: var(--color-accent); }
.code-var { color: var(--color-primary); }
.code-string { color: #22c55e; }

/* ===== Services ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(6, 182, 212, 0.1);
}
.service-card--featured {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.05), rgba(139, 92, 246, 0.05));
}
.service-card__badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--color-primary);
  color: var(--color-bg);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.service-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.1);
  border-radius: 14px;
  margin-bottom: 1.5rem;
}
.service-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}
.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.service-card__desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}
.service-card__list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.service-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* ===== Process ===== */
.process__timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}
.process__step {
  text-align: center;
  padding: 2rem 1rem;
  position: relative;
}
.process__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(6, 182, 212, 0.1);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.process__step h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.process__step p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ===== CTA ===== */
.cta__content {
  text-align: center;
}
.cta__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.cta__text {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

/* ===== Contact ===== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact__info p {
  color: var(--color-text-muted);
  margin: 1rem 0 2rem;
}
.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.contact__item {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.contact__item svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact__item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.15rem;
}
.contact__item a {
  color: var(--color-text);
  font-weight: 500;
}

.contact__form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form__group {
  margin-bottom: 1.25rem;
}
.form__group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
}
.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form__group textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
}
.footer__content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.footer__brand p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}
.footer__links {
  display: flex;
  gap: 2rem;
}
.footer__links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.footer__copy {
  width: 100%;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  margin-top: 0.5rem;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .services__grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .process__timeline { grid-template-columns: repeat(3, 1fr); }
  .about__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }
  .nav__menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .hero__stats { gap: 2rem; }
  .process__timeline { grid-template-columns: 1fr 1fr; }
  .footer__content { flex-direction: column; text-align: center; }
  .footer__links { justify-content: center; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .process__timeline { grid-template-columns: 1fr; }
}