@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Raleway:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Raleway', -apple-system, BlinkMacSystemFont, sans-serif;

  --white: #FFFFFF;
  --warm-gray: #E0E0DB;
  --navy: #253551;
  --navy-light: #2E4066;
  --navy-dark: #1B2740;
  --charcoal: #2A2829;
  --black: #000000;

  --color-bg: var(--warm-gray);
  --color-bg-card: var(--white);
  --color-bg-hero: var(--navy);
  --color-bg-overlay: rgba(37, 53, 81, 0.6);

  --color-text: var(--charcoal);
  --color-text-secondary: #5C5856;
  --color-text-tertiary: #666260;
  --color-text-on-navy: var(--white);
  --color-text-on-navy-secondary: rgba(255, 255, 255, 0.7);

  --color-border: rgba(42, 40, 41, 0.12);
  --color-border-hover: rgba(42, 40, 41, 0.24);

  --accent-purple: #534AB7;
  --accent-teal: #0F6E56;
  --accent-coral: #D85A30;
  --accent-blue: #3B7DD8;
  --accent-amber: #BA7517;
  --accent-pink: #D4537E;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-card: 0 1px 3px rgba(42, 40, 41, 0.05), 0 0 0 1px rgba(42, 40, 41, 0.04);
  --shadow-card-hover: 0 6px 20px rgba(42, 40, 41, 0.1), 0 0 0 1px rgba(42, 40, 41, 0.06);
  --shadow-overlay: 0 24px 64px rgba(37, 53, 81, 0.2), 0 0 0 1px rgba(37, 53, 81, 0.08);

  --max-width: 1080px;
  --transition: 0.2s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  min-height: 100vh;
}

/* ── Accessibility ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Header ── */
.site-header {
  background: var(--navy);
  padding: 0;
  border-bottom: none;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}
.brand {
  text-decoration: none;
  color: var(--color-text-on-navy);
}
.brand__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.brand__sub {
  font-size: 0.6875rem;
  color: var(--color-text-on-navy-secondary);
  font-weight: 400;
  margin-top: 2px;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-on-navy-secondary);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--color-text-on-navy);
  border-bottom-color: var(--white);
}

/* ── Hero (navy band) ── */
.hero {
  background: var(--navy);
  padding: 3rem 0 3.5rem;
}
.hero .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}
.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-on-navy-secondary);
  display: block;
  margin-bottom: 0.75rem;
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-on-navy);
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-on-navy-secondary);
  max-width: 600px;
}

/* ── Main content area (warm gray bg) ── */
.content-section {
  padding: 3rem 0 4rem;
}

/* ── Section headings ── */
.section-heading {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}
.section-intro {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  line-height: 1.65;
}

/* ── Card grid ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem 1.5rem 1.25rem;
  cursor: pointer;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--color-text);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--card-accent, var(--color-border));
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.card:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 2px;
}
.overlay__close:focus-visible,
.overlay__cta:focus-visible,
.filter-btn:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 2px;
}
.nav a:focus-visible {
  outline: 3px solid var(--white);
  outline-offset: 2px;
}
.case-study__back:focus-visible,
.case-study__deliverable:focus-visible,
.case-study__external-link:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 2px;
}

.card__num {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  margin-bottom: 0.5rem;
}
.card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
  color: var(--navy);
}
.card__subtitle {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 0.75rem;
}
.card__signal {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 0.75rem;
  flex-grow: 1;
}
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}
.card__tag {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.1875rem 0.625rem;
  border-radius: var(--radius-sm);
  background: var(--warm-gray);
  color: var(--navy);
}
.card__cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}
.card__cta svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition);
}
.card:hover .card__cta svg {
  transform: translateX(3px);
}

/* Card accent colors */
.card[data-accent="purple"] { --card-accent: var(--accent-purple); }
.card[data-accent="teal"]   { --card-accent: var(--accent-teal); }
.card[data-accent="coral"]  { --card-accent: var(--accent-coral); }
.card[data-accent="blue"]   { --card-accent: var(--accent-blue); }
.card[data-accent="amber"]  { --card-accent: var(--accent-amber); }
.card[data-accent="pink"]   { --card-accent: var(--accent-pink); }

/* ── Overlay ── */
.overlay-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  animation: fadeIn 0.2s ease;
}
.overlay-backdrop.active {
  display: flex;
}
.overlay {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-overlay);
  padding: 2rem 2.5rem;
  max-width: 580px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.25s ease;
}
.overlay__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  line-height: 1;
}
.overlay__close:hover {
  color: var(--color-text);
  background: var(--warm-gray);
}
.overlay__accent {
  display: block;
  width: 2.5rem;
  height: 3px;
  border-radius: 2px;
  margin-bottom: 1rem;
}
.overlay h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  color: var(--navy);
}
.overlay__signal {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}
.overlay__section {
  margin-bottom: 1rem;
}
.overlay__label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 0.375rem;
}
.overlay__text {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.6;
}
.overlay__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.overlay__pill {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
}
.overlay__pill--capability {
  border: none;
  color: var(--navy);
  background: var(--warm-gray);
}
.overlay__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  background: var(--navy);
  border: none;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition);
  letter-spacing: 0.01em;
}
.overlay__cta:hover {
  background: var(--navy-light);
}
.overlay__cta svg {
  width: 14px;
  height: 14px;
}

/* ── Work samples filter ── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.filter-btn {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
}
.filter-btn.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* Work sample cards */
.sample-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition);
}
.sample-card:hover {
  box-shadow: var(--shadow-card-hover);
}
.sample-card__project {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 0.5rem;
}
.sample-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.375rem;
  color: var(--navy);
}
.sample-card__desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 0.75rem;
  flex-grow: 1;
}
.sample-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.sample-card__type {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.1875rem 0.625rem;
  border-radius: var(--radius-sm);
}
.sample-card__type--demo     { background: #E1F5EE; color: var(--accent-teal); }
.sample-card__type--gated    { background: #EEEDFE; color: var(--accent-purple); }
.sample-card__type--external { background: #E6F1FB; color: var(--accent-blue); }
.sample-card__type--internal { background: var(--warm-gray); color: var(--color-text-tertiary); }

.sample-card__access {
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
}

/* ── Page content ── */
.page-content {
  padding: 3rem 0 4rem;
}
.page-content h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: var(--navy);
}
.page-content h2 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 500;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--navy);
}
.page-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  max-width: 640px;
}

/* ── Case study detail ── */
.case-study {
  padding: 3rem 0 4rem;
}
.case-study__back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color var(--transition);
}
.case-study__back:hover { color: var(--navy); }

.case-study__accent {
  display: block;
  width: 3rem;
  height: 3px;
  border-radius: 2px;
  margin-bottom: 1.25rem;
}
.case-study h1 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--navy);
}
.case-study__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}
.case-study__signal {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
  max-width: 640px;
}
.case-study__section {
  margin-bottom: 2rem;
  max-width: 640px;
}
.case-study__section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 0.5rem;
}
.case-study__section p,
.case-study__section li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
}
.case-study__deliverable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}
.case-study__deliverable {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1rem;
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition);
}
.case-study__deliverable:hover {
  border-color: var(--color-border-hover);
  background: var(--warm-gray);
}

.case-study__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.case-study__tool {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: var(--white);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.case-study__external-link {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  margin-bottom: 0.75rem;
  transition: border-color var(--transition);
}
.case-study__external-link:hover { border-color: var(--navy); }
.case-study__external-link strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.25rem;
}
.case-study__external-link span {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ── Footer (navy closing band) ── */
.site-footer {
  background: var(--navy);
  padding: 1.5rem 0;
  margin-top: 0;
  border-top: none;
}
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-footer .muted {
  font-size: 0.8125rem;
  color: var(--color-text-on-navy-secondary);
}

/* ── Placeholder states ── */
.placeholder {
  padding: 2rem;
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
  background: var(--white);
}

/* ── Metrics row ── */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}
.metric {
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  text-align: center;
}
.metric__number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--navy);
  display: block;
  margin-bottom: 0.25rem;
}
.metric__label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card {
  animation: slideUp 0.4s ease both;
}
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero h1 { font-size: 2rem; }
  .nav { gap: 1rem; }
  .nav a { font-size: 0.8125rem; }
  .container { padding: 0 1.25rem; }
  .overlay { padding: 1.5rem; }
}
@media (max-width: 480px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .hero { padding: 2rem 0 2.5rem; }
  .hero h1 { font-size: 1.75rem; }
}