.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding: var(--space-16) 0;
}

.section--alt {
  background: var(--color-neutral-50);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

@media (prefers-color-scheme: dark) {
  .header {
    background: rgba(15, 23, 42, 0.85);
  }
}

.header.is-scrolled {
  border-bottom-color: var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  color: var(--color-dark);
}

.header__logo:hover {
  color: var(--color-dark);
}

.header__logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
  line-height: 1.2;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

img.header__logo-mark {
  height: 52px;
  width: 52px;
  max-width: 52px;
  max-height: 52px;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-md);
}

.footer__logo img.header__logo-mark {
  height: 64px;
  width: 64px;
  max-width: 64px;
  max-height: 64px;
  background: #fff;
  border-radius: var(--radius-lg);
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }
}

.header__nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-neutral-600);
  transition: color var(--transition-fast);
}

.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--color-primary);
}

.header__actions {
  display: none;
  align-items: center;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .header__actions {
    display: flex;
  }
}

.header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  color: var(--color-dark);
}

@media (min-width: 768px) {
  .header__menu-toggle {
    display: none;
  }
}

.header__menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile-menu);
  background: var(--color-background);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

@media (min-width: 768px) {
  .mobile-menu {
    display: none;
  }
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.mobile-menu__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--color-dark);
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu__link {
  display: block;
  padding: var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-dark);
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
}

.mobile-menu__link:hover {
  background: var(--color-neutral-100);
  color: var(--color-primary);
}

.mobile-menu__actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Hero */
.hero {
  padding-top: calc(72px + var(--space-16));
  padding-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.hero__badge {
  margin-bottom: var(--space-6);
}

.hero__title {
  margin-bottom: var(--space-6);
}

.hero__desc {
  font-size: var(--text-lg);
  color: var(--color-neutral-500);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 520px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-neutral-100);
  width: 100%;
  max-width: 480px;
}

.hero__card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-neutral-100);
}

.hero__card-dots {
  display: flex;
  gap: var(--space-2);
}

.hero__card-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}

.hero__card-dot--red { background: var(--color-danger); }
.hero__card-dot--yellow { background: var(--color-warning); }
.hero__card-dot--green { background: var(--color-success); }

.hero__code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-neutral-600);
}

.hero__code .keyword { color: var(--color-primary); }
.hero__code .string { color: var(--color-success); }
.hero__code .comment { color: var(--color-neutral-400); }

.hero__bg {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(31, 125, 184, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--color-primary), #1565A0);
  border-radius: var(--radius-2xl);
  padding: var(--space-12) var(--space-8);
  text-align: center;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .cta {
    padding: var(--space-16);
  }
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cta__title {
  color: #fff;
  margin-bottom: var(--space-4);
  position: relative;
}

.cta__desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--text-lg);
  max-width: 520px;
  margin: 0 auto var(--space-8);
  position: relative;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  position: relative;
}

.cta .btn--secondary {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.cta .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: var(--color-neutral-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__brand-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
}

.footer__logo:hover {
  opacity: 0.9;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-neutral-400);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: #fff;
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  font-size: var(--text-sm);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-neutral-400);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: #fff;
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

/* Page Hero (inner pages) */
.page-hero {
  padding-top: calc(72px + var(--space-12));
  padding-bottom: var(--space-12);
  text-align: center;
  background: var(--color-neutral-50);
  position: relative;
  overflow: hidden;
}

.page-hero__title {
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}

.page-hero__desc {
  font-size: var(--text-lg);
  color: var(--color-neutral-500);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-hero--aurora .container {
  position: relative;
  z-index: 1;
}

.aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.aurora__band {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.45;
}

.aurora__band--1 {
  width: min(720px, 70vw);
  height: 280px;
  left: -8%;
  top: 8%;
  background: radial-gradient(ellipse at center, rgba(52, 211, 153, 0.55), transparent 68%);
  animation: auroraDrift 22s ease-in-out infinite;
}

.aurora__band--2 {
  width: min(640px, 62vw);
  height: 260px;
  right: -10%;
  top: 0;
  background: radial-gradient(ellipse at center, rgba(129, 140, 248, 0.42), transparent 68%);
  animation: auroraDrift 28s ease-in-out infinite reverse;
}

.aurora__band--3 {
  width: min(520px, 50vw);
  height: 220px;
  left: 28%;
  top: 18%;
  background: radial-gradient(ellipse at center, rgba(56, 189, 248, 0.38), transparent 70%);
  animation: auroraDrift 18s ease-in-out infinite 3s;
}

.aurora__curtain {
  position: absolute;
  left: -15%;
  right: -15%;
  top: 18%;
  height: 42%;
  background: linear-gradient(
    95deg,
    transparent 5%,
    rgba(45, 212, 191, 0.12) 28%,
    rgba(99, 102, 241, 0.1) 52%,
    rgba(56, 189, 248, 0.12) 74%,
    transparent 95%
  );
  transform: skewY(-7deg);
  filter: blur(28px);
  animation: auroraCurtain 20s ease-in-out infinite;
}

@media (prefers-color-scheme: dark) {
  .aurora__band {
    opacity: 0.55;
    mix-blend-mode: screen;
  }

  .aurora__curtain {
    mix-blend-mode: screen;
    opacity: 0.7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .aurora__band,
  .aurora__curtain {
    animation: none;
  }
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-neutral-400);
  margin-bottom: var(--space-4);
}

.breadcrumb a {
  color: var(--color-neutral-500);
}

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

.breadcrumb__sep {
  color: var(--color-neutral-300);
}

.quote-banner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.quote-banner__text {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
  font-weight: 600;
  font-style: italic;
  line-height: var(--leading-tight);
  color: var(--color-dark);
}

.quote-banner__text::before {
  content: '“';
  color: var(--color-primary);
}

.quote-banner__text::after {
  content: '”';
  color: var(--color-primary);
}

.why-grid {
  display: grid;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-600);
}

.check-list__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--color-success);
}

.process {
  display: grid;
  gap: var(--space-6);
  counter-reset: process;
}

@media (min-width: 640px) {
  .process {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

.process__step {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-neutral-100);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.process__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-lg);
}

.process__step h3 {
  margin-bottom: var(--space-2);
}

.process__step p {
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
  line-height: var(--leading-relaxed);
}

/* About values */
.value-card {
  text-align: center;
  padding: var(--space-8);
}

.value-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(31, 125, 184, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-primary);
}

.value-card__icon svg {
  width: 28px;
  height: 28px;
}

/* Service detail */
.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card__list {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-card__list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
}

.service-card__list li svg {
  width: 16px;
  height: 16px;
  color: var(--color-success);
  flex-shrink: 0;
}

/* Contact layout */
.contact-grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

.contact-info__item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(31, 125, 184, 0.1);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

.contact-info__icon svg {
  width: 22px;
  height: 22px;
}

.contact-info__label {
  font-size: var(--text-sm);
  color: var(--color-neutral-400);
  margin-bottom: var(--space-1);
}

.contact-info__value {
  font-weight: 500;
  color: var(--color-dark);
}