:root {
  --color-bg: #0a0e17;
  --color-bg-alt: #111827;
  --color-bg-card: #1a2234;
  --color-bg-card-hover: #1f2a40;
  --color-surface: #ffffff;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-dark: #0f172a;
  --color-primary: #3b82f6;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #2563eb;
  --color-accent: #06b6d4;
  --color-accent-glow: rgba(6, 182, 212, 0.25);
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-border: rgba(148, 163, 184, 0.12);
  --color-border-light: rgba(148, 163, 184, 0.2);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;
  --font-size-5xl: 3.5rem;

  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--color-accent-glow);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --header-height: 4.5rem;
  --container-max: 72rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-lg);
}

.section {
  padding-block: var(--spacing-4xl);
}

.section--dark {
  background-color: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  max-width: 42rem;
  margin-inline: auto;
  margin-bottom: var(--spacing-3xl);
}

.section__badge {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-md);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-surface);
  margin-bottom: var(--spacing-md);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-surface);
  box-shadow: var(--shadow-md), 0 0 20px rgba(59, 130, 246, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(59, 130, 246, 0.4);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.btn--secondary:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(59, 130, 246, 0.08);
}

.btn--full {
  width: 100%;
}

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

.header--scrolled {
  background: rgba(10, 14, 23, 0.95);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__logo-img {
  width: 150px;
  height: 150px;
  object-fit: contain;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-surface);
}

.nav__link--cta {
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-surface) !important;
  border-radius: var(--radius-md);
}

.nav__link--cta:hover {
  background: var(--color-primary-dark);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59, 130, 246, 0.15), transparent),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(6, 182, 212, 0.08), transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(59, 130, 246, 0.06), transparent);
  pointer-events: none;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  padding-block: var(--spacing-3xl);
}

.hero__badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-lg);
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-surface);
  margin-bottom: var(--spacing-lg);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 32rem;
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.hero__stats {
  display: flex;
  gap: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.hero__stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-surface);
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero__visual {
  position: relative;
  height: 28rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__orb {
  position: absolute;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.15));
  filter: blur(40px);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.08); opacity: 1; }
}

.hero__card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  animation: float 6s ease-in-out infinite;
}

.hero__card-icon {
  font-size: 1.75rem;
}

.hero__card-text {
  display: flex;
  flex-direction: column;
}

.hero__card-text strong {
  font-size: var(--font-size-sm);
  color: var(--color-surface);
}

.hero__card-text span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.hero__card--1 {
  top: 10%;
  right: 5%;
  animation-delay: 0s;
}

.hero__card--2 {
  top: 42%;
  left: 0;
  animation-delay: -2s;
}

.hero__card--3 {
  bottom: 12%;
  right: 15%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

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

.service-card {
  position: relative;
  padding: var(--spacing-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-border-light);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card--featured {
  border-color: rgba(59, 130, 246, 0.3);
  background: linear-gradient(160deg, rgba(59, 130, 246, 0.08), var(--color-bg-card));
}

.service-card--featured:hover {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(59, 130, 246, 0.15);
}

.service-card__badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary-light);
  background: rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-full);
}

.service-card__icon {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.12);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary-light);
}

.service-card__icon svg {
  width: 1.75rem;
  height: 1.75rem;
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-surface);
  margin-bottom: var(--spacing-md);
}

.service-card__description {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.service-card__list {
  margin-bottom: var(--spacing-xl);
}

.service-card__list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.service-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  transition: gap var(--transition-base);
}

.service-card__link:hover {
  gap: var(--spacing-sm);
}

.service-card__link svg {
  width: 1rem;
  height: 1rem;
}

/* Why Us */
.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.why-card {
  padding: var(--spacing-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.why-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.why-card__number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.5;
  margin-bottom: var(--spacing-md);
}

.why-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-surface);
  margin-bottom: var(--spacing-sm);
}

.why-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Process */
.process__timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  top: 1.75rem;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0.3;
}

.process__step {
  text-align: center;
  position: relative;
}

.process__step-marker {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--color-surface);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  box-shadow: var(--shadow-glow);
  position: relative;
  z-index: 1;
}

.process__step-content h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-surface);
  margin-bottom: var(--spacing-sm);
}

.process__step-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* CTA & Contact */
.cta {
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(59, 130, 246, 0.1), transparent),
    var(--color-bg-alt);
}

.cta__wrapper {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.cta__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-surface);
  margin-bottom: var(--spacing-md);
}

.cta__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
}

.cta__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  padding: var(--spacing-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.cta__info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.cta__info-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.cta__info-item strong {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.cta__info-item a,
.cta__info-item span {
  font-size: var(--font-size-base);
  color: var(--color-surface);
}

.cta__info-item a:hover {
  color: var(--color-primary-light);
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-3xl);
}

.footer__content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-surface);
  margin-bottom: var(--spacing-md);
}

.footer__brand p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  max-width: 20rem;
  line-height: 1.7;
}

.footer__links h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-surface);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.footer__links li {
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer__links a:hover {
  color: var(--color-primary-light);
}

.footer__bottom {
  padding-block: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer__bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__description {
    margin-inline: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__stats {
    justify-content: center;
  }

  .hero__visual {
    height: 20rem;
    margin-top: var(--spacing-xl);
  }

  .why__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__timeline::before {
    display: none;
  }

  .cta__wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav__menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__menu li {
    width: 100%;
  }

  .nav__link {
    display: block;
    padding: var(--spacing-md);
    text-align: center;
  }

  .nav__link--cta {
    margin-top: var(--spacing-sm);
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .why__grid {
    grid-template-columns: 1fr;
  }

  .process__timeline {
    grid-template-columns: 1fr;
  }

  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__brand p {
    margin-inline: auto;
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__card {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .hero__card-icon {
    font-size: 1.25rem;
  }
}