@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-on-background);
  line-height: var(--lh-relaxed);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: inherit;
}

ul, ol { list-style: none; }

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

@media (min-width: 768px) {
  .container {
    padding-inline: var(--gutter-desktop);
  }
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-3);
}

.text-display {
  font-size: var(--text-display-lg);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
}

.text-headline-md {
  font-size: var(--text-headline-md);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
}

.text-headline-sm {
  font-size: var(--text-headline-sm);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-normal);
}

.text-body-lg {
  font-size: var(--text-body-lg);
  font-weight: var(--fw-light);
  line-height: var(--lh-relaxed);
}

.text-body-md {
  font-size: var(--text-body-md);
  font-weight: var(--fw-regular);
  line-height: var(--lh-relaxed);
}

.text-label-md {
  font-size: var(--text-label-md);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.text-label-sm {
  font-size: var(--text-label-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
}

.text-primary         { color: var(--color-on-background); }
.text-secondary       { color: var(--color-secondary); }
.text-muted           { color: var(--color-on-surface-variant); }
.text-white           { color: var(--color-on-primary); }
.text-white-70        { color: rgba(255,255,255,0.7); }
.text-white-50        { color: rgba(255,255,255,0.5); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 1rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-label-md);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  border-radius: 0;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  white-space: normal;
  text-align: center;
}

@media (min-width: 768px) {
  .btn { padding: 1rem 2.5rem; }
}

.btn-primary {
  background: var(--color-surface-ink);
  color: var(--color-on-primary);
  border: 1px solid var(--color-surface-ink);
}

.btn-primary:hover {
  background: #1e2d45;
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background: transparent;
  color: var(--color-surface-ink);
  border: 1px solid var(--color-surface-ink);
}

.btn-outline:hover {
  background: var(--color-surface-ink);
  color: var(--color-on-primary);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-on-primary);
  border: 1px solid rgba(255,255,255,0.4);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
}

.btn-white {
  background: var(--color-on-primary);
  color: var(--color-surface-ink);
  border: 1px solid var(--color-on-primary);
}

.btn-white:hover {
  background: var(--color-surface-low);
}

.btn-cyan {
  background: var(--color-secondary);
  color: var(--color-on-secondary);
  border: 1px solid var(--color-secondary);
}

.btn-cyan:hover {
  background: #005566;
}

.section { padding-block: var(--space-16); }
.section-sm { padding-block: var(--space-10); }

.overline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-label-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--space-3);
}

.overline-line {
  display: inline-block;
  width: 2.5rem;
  height: 1px;
  background: var(--color-secondary);
}

.card {
  background: var(--color-surface-lowest);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-4);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border-subtle);
}

.bg-mesh {
  background-color: var(--color-surface);
  background-image:
    radial-gradient(at 40% 20%, hsla(190,40%,96%,1) 0px, transparent 50%),
    radial-gradient(at 80% 0%,  hsla(210,30%,95%,1) 0px, transparent 50%),
    radial-gradient(at 0%  50%, hsla(200,20%,97%,1) 0px, transparent 50%),
    radial-gradient(at 80% 50%, hsla(190,30%,94%,1) 0px, transparent 50%),
    radial-gradient(at 0% 100%, hsla(210,20%,96%,1) 0px, transparent 50%),
    radial-gradient(at 80% 100%, hsla(200,30%,95%,1) 0px, transparent 50%),
    radial-gradient(at 0%  0%,  hsla(190,40%,98%,1) 0px, transparent 50%);
}

.bg-dark {
  background: var(--color-surface-ink);
  color: var(--color-on-primary);
}

.bg-dark-alt {
  background: var(--color-tertiary-container);
  color: var(--color-on-primary);
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-surface-low); }
::-webkit-scrollbar-thumb { background: var(--color-outline); border-radius: var(--radius-full); }

:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 3px;
}

::selection {
  background: var(--color-secondary);
  color: var(--color-on-secondary);
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }