/* Layout CSS - Grid, Sections, Navigation */

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (max-width: 640px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

/* Sections */
.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: var(--space-6);
  right: var(--space-6);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.section:first-of-type::before {
  display: none;
}

.section-lg {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.section-title {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.section-subtitle {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  max-width: 600px;
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: transparent;
  transition: background-color var(--transition-fast);
}

.nav.scrolled {
  background-color: rgba(250, 250, 250, 0.95);
  backdrop-filter: blur(8px);
}

@media (prefers-color-scheme: dark) {
  .nav.scrolled {
    background-color: rgba(9, 9, 11, 0.95);
  }
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 56px;
  gap: var(--space-6);
}

.nav-logo {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  letter-spacing: 0.02em;
  margin-right: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.active {
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

/* Mobile menu */
.nav-menu-btn {
  display: none;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .nav-menu-btn {
    display: block;
  }

  .nav-quick-access {
    display: none;
  }
}

/* Nav quick access buttons */
.nav-quick-access {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
}

.nav-quick-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  min-height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-quick-btn:hover,
.nav-quick-btn.active {
  border-color: var(--color-text-subtle);
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

/* Nav popover */
.nav-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 320px;
  max-height: 400px;
  overflow-y: auto;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  z-index: 100;
}

.nav-popover-right {
  left: auto;
  right: 0;
}

.nav-popover-header {
  padding: var(--space-3) var(--space-4);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg-elevated);
}

.nav-popover-list {
  padding: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.nav-popover-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  min-height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  font-size: 12px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.nav-popover-item:hover {
  background: var(--color-bg-elevated);
  border-color: var(--color-text-subtle);
  color: var(--color-text);
}

.nav-popover-title {
  font-weight: var(--font-medium);
}

.nav-popover-subtitle {
  color: var(--color-text-subtle);
  font-size: 10px;
  opacity: 0.7;
}

.nav-popover-subtitle::before {
  content: "·";
  margin: 0 4px;
}

.nav-popover-desc {
  display: none;
}

@media (max-width: 480px) {
  .nav-popover {
    position: fixed;
    width: calc(100% - 32px);
    left: 16px;
    right: 16px;
    max-width: none;
  }

  .nav-popover-subtitle {
    font-size: 11px;
  }
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 56px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 80% 20%,
    color-mix(in srgb, var(--color-simulation) 6%, transparent) 0%,
    transparent 50%
  );
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 56px);
  justify-content: center;
  pointer-events: none;
}

/* Only interactive elements capture clicks - text passes through to canvas */
.hero .container a,
.hero .container button,
.hero .container .btn,
.hero .container .tech-stack-wrapper {
  pointer-events: auto;
}

.hero-content {
  max-width: 700px;
}

.hero-eyebrow {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.hero-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--color-border);
  margin-bottom: var(--space-5);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: var(--font-bold);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

.hero-meta {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.hero-clients {
  flex: 1;
  max-width: 400px;
}

.hero-clients-label {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
  display: block;
}

.hero-clients-list {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero-scroll:hover {
  border-color: var(--color-text-subtle);
  color: var(--color-text);
}

@media (max-width: 768px) {
  .hero-meta {
    flex-direction: column;
    gap: var(--space-4);
  }

  .hero-clients {
    max-width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--space-6);
  position: relative;
  z-index: 1;
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.flex-wrap { flex-wrap: wrap; }

/* Spacing utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Footer */
.footer {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
  margin-top: var(--space-20);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-link {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-subtle);
  transition: color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-link:hover {
  color: var(--color-text);
}

.footer-copy {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-subtle);
}