/* Startling — site styles */

.noise-veil {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-6);
}

.logo {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.55rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.logo-chevron {
  color: var(--color-primary);
  font-weight: 300;
  letter-spacing: -0.09em;
  margin-left: 0.2em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1.5px;
  width: 0;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}
.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-text);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: color var(--transition-interactive), border-color var(--transition-interactive), transform var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-interactive), background var(--transition-interactive), box-shadow var(--transition-interactive);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--color-primary) 60%, transparent);
}
.btn-ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  filter: blur(6px);
  transition: opacity 800ms var(--ease-out-expo), filter 800ms var(--ease-out-expo);
}
.reveal.is-visible {
  opacity: 1;
  filter: blur(0);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(72px + var(--space-32)) 0 var(--space-24);
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 22%, transparent) 0%, transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  animation: drift 16s ease-in-out infinite alternate;
}
@keyframes drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-40px, 60px) scale(1.08); }
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-hero);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 15ch;
}
.hero-title .accent { color: var(--color-primary); font-weight: 500; }
.hero-lede {
  margin-top: var(--space-8);
  max-width: 42ch;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}

/* ---------- Section shell ---------- */
section {
  padding: var(--space-24) 0;
  position: relative;
}
.section-head {
  max-width: 46ch;
  margin-bottom: var(--space-12);
}
.section-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  display: block;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
}

/* ---------- Problem list (10 items) ---------- */
.problem-section {
  border-top: 1px solid var(--color-border);
}
.problem-section .section-head {
  max-width: none;
}
#what-we-do .section-head {
  max-width: none;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.problem-item {
  background: var(--color-surface);
  padding: var(--space-6);
  transition: background var(--transition-interactive);
}
.problem-item:nth-child(7) {
  grid-column: span 2;
}
.problem-item:hover {
  background: var(--color-surface-alt);
}
.problem-num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  display: block;
}
.problem-item h3 {
  font-size: var(--text-base);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.problem-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ---------- Story flow ---------- */
.story-section {
  text-align: center;
}
.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin: var(--space-12) 0;
}
.flow-node {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  color: var(--color-text);
  padding: 0.5rem 0;
}
.flow-node.is-accent {
  color: var(--color-primary);
  font-weight: 500;
}
.flow-arrow {
  width: 34px;
  height: 14px;
  color: var(--color-text-faint);
  flex-shrink: 0;
}
.flow-arrow svg { width: 100%; height: 100%; }
.flow-arrow path {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  transition: stroke-dashoffset 900ms var(--ease-out-expo);
}
.story-section.is-visible .flow-arrow path {
  stroke-dashoffset: 0;
}
.story-copy {
  max-width: 54ch;
  margin: 0 auto;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* ---------- Phases (What we do) ---------- */
.phases {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.phase-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-interactive), border-color var(--transition-interactive);
}
.phase-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}
.phase-num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-xl);
  color: var(--color-primary);
}
.phase-card h3 {
  font-size: var(--text-lg);
  font-weight: 500;
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
}
.phase-card > p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  flex-grow: 0;
}
.phase-list {
  list-style: none;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.phase-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  gap: 0.45rem;
}
.phase-list li::before {
  content: "\203A";
  color: var(--color-primary);
  font-weight: 700;
}

/* ---------- GTM strip ---------- */
.gtm-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
}
.gtm-stage {
  text-align: center;
  padding: var(--space-4) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: transform var(--transition-interactive);
}
.gtm-stage.is-active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.gtm-caption {
  margin-top: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* ---------- Logo strip ---------- */
.logo-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-12);
  padding: var(--space-8) 0;
}
.logo-strip img {
  height: 26px;
  width: auto;
  opacity: 0.75;
  filter: grayscale(1) brightness(2.4);
  transition: opacity var(--transition-interactive), filter var(--transition-interactive);
}
[data-theme="light"] .logo-strip img {
  filter: grayscale(1) brightness(0.15);
}
.logo-strip img:hover {
  opacity: 1;
  filter: none;
}
.logo-strip img[data-tall="1"] { height: 40px; }
.logo-strip img[data-small="1"] { height: 15px; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-12);
  align-items: start;
}
.about-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--color-border);
}
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-2xl);
  margin-bottom: 0.2rem;
}
.about-role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-4);
}
.about-bio {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
  margin-bottom: var(--space-4);
}
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition-interactive), border-color var(--transition-interactive);
}
.about-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.about-link svg { width: 14px; height: 14px; }

/* ---------- CTA / Footer ---------- */
.cta-section {
  text-align: center;
  border-top: 1px solid var(--color-border);
}
.cta-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-3xl);
  max-width: 20ch;
  margin: 0 auto var(--space-8);
}
.cta-title .accent { color: var(--color-primary); }

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-inner a {
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}
.footer-inner a:hover { color: var(--color-primary); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .phases { grid-template-columns: repeat(2, 1fr); }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { width: 140px; height: 140px; }
  .gtm-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .main-nav { display: none; }
  .main-nav.is-open {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6);
    gap: var(--space-6);
  }
  .main-nav.is-open .nav-links {
    flex-direction: column;
    gap: var(--space-4);
  }
  .nav-toggle { display: flex; }
  .phases { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem-item:nth-child(7) { grid-column: span 1; }
  .gtm-strip { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  section { padding: var(--space-16) 0; }
  .flow { gap: var(--space-2); }
  .flow-node { font-size: 1.4rem; }
}