/* =============================================
   PTHX DESIGN SYSTEM
   Inspired by: Anduril / Palantir
   Palette: muted dark greys, moss green, muted red
   No pure black, no pure white, no neon, no emoji
   ============================================= */

/* -- Colour Tokens -- */
:root {
  /* Neutrals — warm dark greys (no pure black/white) */
  --grey-950: #161819;
  --grey-900: #1e2022;
  --grey-850: #25282b;
  --grey-800: #2e3134;
  --grey-700: #3f4347;
  --grey-600: #585d63;
  --grey-500: #747a82;
  --grey-400: #949aa2;
  --grey-300: #b5bac1;
  --grey-200: #d2d6db;
  --grey-150: #e2e5e9;
  --grey-100: #eceef1;
  --grey-50: #f2f3f5;

  /* Moss green — muted pascal */
  --moss-900: #1c2a1a;
  --moss-800: #2a3c27;
  --moss-700: #3b5237;
  --moss-600: #4f6c4a;
  --moss-500: #64875e;
  --moss-400: #82a57c;
  --moss-300: #a3bf9e;
  --moss-200: #c4d8c0;
  --moss-100: #e0ecde;

  /* Pascal red — muted, warm */
  --red-900: #301517;
  --red-800: #4e2124;
  --red-700: #703134;
  --red-600: #943f44;
  --red-500: #b05258;
  --red-400: #c87478;
  --red-300: #daa0a3;
  --red-200: #e9c4c6;
  --red-100: #f4e2e3;

  /* Typography */
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Menlo', monospace;

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-w: 1200px;
  --max-w-narrow: 780px;
  --radius: 4px;
  --radius-lg: 8px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --duration: 0.3s;
}

/* -- Dark theme (default) — dark grey + dark moss + pascal red pop -- */
[data-theme="dark"] {
  --c-bg: var(--grey-950);
  --c-bg-elevated: var(--grey-900);
  --c-bg-subtle: var(--grey-850);
  --c-surface: var(--grey-800);
  --c-border: var(--grey-700);
  --c-border-subtle: var(--grey-850);
  --c-text: var(--grey-150);
  --c-text-secondary: var(--grey-400);
  --c-text-tertiary: var(--grey-500);
  --c-heading: var(--grey-100);
  --c-accent: var(--moss-400);
  --c-accent-hover: var(--moss-300);
  --c-accent-subtle: var(--moss-900);
  --c-pop: var(--red-500);
  --c-pop-hover: var(--red-400);
  --c-pop-subtle: var(--red-900);
  --c-nav-bg: rgba(22, 24, 25, 0.88);
  --c-code-bg: var(--grey-850);
  --c-card-hover: var(--grey-850);
  --noise-opacity: 0.03;
  --hero-blur-tint: rgba(22, 24, 25, 0.85);
}

/* -- Light theme — light grey + light moss + pascal red pop -- */
[data-theme="light"] {
  --c-bg: var(--grey-50);
  --c-bg-elevated: var(--grey-100);
  --c-bg-subtle: var(--grey-150);
  --c-surface: var(--grey-100);
  --c-border: var(--grey-200);
  --c-border-subtle: var(--grey-100);
  --c-text: var(--grey-800);
  --c-text-secondary: var(--grey-600);
  --c-text-tertiary: var(--grey-500);
  --c-heading: var(--grey-900);
  --c-accent: var(--moss-600);
  --c-accent-hover: var(--moss-700);
  --c-accent-subtle: var(--moss-100);
  --c-pop: var(--red-500);
  --c-pop-hover: var(--red-400);
  --c-pop-subtle: var(--red-100);
  --c-nav-bg: rgba(242, 243, 245, 0.88);
  --c-code-bg: var(--grey-100);
  --c-card-hover: var(--grey-100);
  --noise-opacity: 0.02;
  --hero-blur-tint: rgba(242, 243, 245, 0.85);
}

/* ---- Reset ---- */
*, *::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);
  font-weight: 400;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: var(--noise-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--c-heading);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  letter-spacing: -0.025em;
  line-height: 1.08;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.02em;
}

h3 {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.4;
}

h4 {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

p { margin-bottom: 1rem; }

.text-secondary { color: var(--c-text-secondary); }
.text-accent { color: var(--c-accent); }
.text-pop { color: var(--c-pop); }

/* ---- Layout ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container--narrow {
  max-width: var(--max-w-narrow);
}

.section {
  padding: var(--space-3xl) 0;
}

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

.divider {
  border: none;
  border-top: 1px solid var(--c-border-subtle);
  margin: 0;
}

/* ---- Header / Nav ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--c-nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border-subtle);
  transition: background var(--duration) var(--ease);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
  color: var(--c-heading);
}

.logo-dot {
  color: var(--c-pop);
  font-size: 1.5rem;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--c-text-secondary);
  letter-spacing: 0.02em;
  transition: color var(--duration) var(--ease);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--c-heading);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--c-pop);
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration) var(--ease);
  font-size: 0.85rem;
  margin-left: 1rem;
}

.theme-toggle:hover {
  border-color: var(--c-text-secondary);
  color: var(--c-heading);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--c-text);
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-right {
  display: flex;
  align-items: center;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn--primary,
.nav-links a.btn--primary {
  background: var(--c-pop);
  color: #1a1c1e;
  font-weight: 600;
}

.btn--primary:hover,
.nav-links a.btn--primary:hover {
  background: var(--c-pop-hover);
  color: #1a1c1e;
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-text);
}

.btn--ghost:hover {
  border-color: var(--c-text-secondary);
  background: var(--c-bg-elevated);
}

.btn--accent {
  background: var(--c-accent);
  color: var(--grey-950);
}

.btn--accent:hover {
  background: var(--c-accent-hover);
}

.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
}

.btn-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Arrow icon for buttons */
.btn .arrow {
  transition: transform var(--duration) var(--ease);
  font-size: 0.75em;
}
.btn:hover .arrow { transform: translateX(3px); }

/* ---- Tag / Label ---- */
.label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-accent);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--c-accent);
  border-radius: 2px;
}

.overline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-pop);
  margin-bottom: var(--space-sm);
  display: block;
}

/* ---- Hero ---- */
.hero {
  padding-top: calc(64px + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  position: relative;
  overflow: hidden;
}

/* Video background — positioned in the right 60% of the hero */
.hero-video {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 60%;
  z-index: 0;
  overflow: hidden;
}

.hero-video video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}

.hero-video video.active {
  opacity: 1;
}

.hero-content {
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero .lead {
  font-size: 1.15rem;
  color: var(--c-text-secondary);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: var(--space-lg);
}

/* Subtle accent line */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 1px;
  background: linear-gradient(90deg, var(--c-pop) 0%, var(--c-border-subtle) 40%, transparent 100%);
}

/* ---- Hero blur backdrop — full height, solid from left edge,
   overlaps 10% into the video area, then fades over the next 20% ---- */
/* Video starts at 40% (right 60%), so:
   - Solid tint from 0% to 50% (40% + 10% overlap)
   - Fade to transparent from 50% to 70% (20% of viewport)
   Total width: 70% to cover the fade-out region */
.hero-backdrop {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 70%;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    to right,
    var(--hero-blur-tint) 0%,
    var(--hero-blur-tint) 71.4%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    black 0%,
    black 71.4%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to right,
    black 0%,
    black 71.4%,
    transparent 100%
  );
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* ---- Service Cards ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--c-border-subtle);
  border: 1px solid var(--c-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-lg);
}

/* Inverted pyramid: 2 cards top, 3 cards bottom */
.services-grid .service-card:nth-child(1),
.services-grid .service-card:nth-child(2) {
  grid-column: span 3;
}

.services-grid .service-card:nth-child(3),
.services-grid .service-card:nth-child(4),
.services-grid .service-card:nth-child(5) {
  grid-column: span 2;
}

.service-card {
  background: var(--c-bg);
  padding: var(--space-lg);
  transition: background var(--duration) var(--ease);
  position: relative;
}

.service-card:hover {
  background: var(--c-card-hover);
}

.service-card__number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-text-tertiary);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
  display: block;
}

.service-card h3 {
  margin-bottom: var(--space-xs);
  color: var(--c-heading);
}

.service-card p {
  color: var(--c-text-secondary);
  font-size: 0.93rem;
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.service-card__link {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-pop);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--duration) var(--ease);
}

.service-card:hover .service-card__link {
  gap: 0.65rem;
}

/* ---- Stats row ---- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border-subtle);
  border-top: 1px solid var(--c-border-subtle);
  border-bottom: 1px solid var(--c-border-subtle);
}

.stat {
  background: var(--c-bg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--c-heading);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat__label {
  font-size: 0.82rem;
  color: var(--c-text-tertiary);
  letter-spacing: 0.03em;
}

/* ---- Two-column section ---- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.split--wide-right {
  grid-template-columns: 0.85fr 1.15fr;
}

.split h2 {
  margin-bottom: var(--space-md);
}

/* ---- Values list ---- */
.values {
  list-style: none;
  counter-reset: val;
}

.values li {
  counter-increment: val;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--c-border-subtle);
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0 var(--space-sm);
}

/* Empty placeholder div — collapse it so content div takes the 1fr column */
.values li > div:empty {
  display: none;
}

.values li > div:not(:empty) {
  grid-column: 2;
}

.values li:last-child { border-bottom: none; }

.values li::before {
  content: counter(val, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-text-tertiary);
  padding-top: 0.15rem;
}

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

.values p {
  color: var(--c-text-secondary);
  font-size: 0.93rem;
  margin: 0;
}

.values--full {
  max-width: var(--max-w);
}

.values--full li {
  grid-template-columns: 56px 1fr;
  padding: var(--space-lg) 0;
}

.values--full h3 {
  font-size: 1.2rem;
}

.values--full p {
  font-size: 1rem;
  max-width: 680px;
}

/* ---- Service Detail Blocks ---- */
.service-detail {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--c-border-subtle);
}

.service-detail:last-of-type { border-bottom: none; }

.service-detail__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.service-detail__id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-pop);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.service-detail p.desc {
  color: var(--c-text-secondary);
  font-size: 1.05rem;
  max-width: 680px;
  margin-bottom: var(--space-md);
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0;
  list-style: none;
}

.capability-list li {
  padding: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--c-text-secondary);
  font-size: 0.9rem;
}

.capability-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--c-accent);
}

/* ---- Blog List ---- */
.blog-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--c-border-subtle);
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-md);
  align-items: baseline;
  transition: background var(--duration) var(--ease);
}

.blog-item:first-child { padding-top: 0; }

.blog-item__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-text-tertiary);
  letter-spacing: 0.02em;
}

.blog-item h3 {
  margin-bottom: 0.3rem;
}

.blog-item h3 a {
  transition: color var(--duration) var(--ease);
}

.blog-item h3 a:hover {
  color: var(--c-pop);
}

.blog-item__excerpt {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.blog-tags {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--c-accent);
  background: var(--c-accent-subtle);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* ---- Contact Form ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-aside p {
  color: var(--c-text-secondary);
  font-size: 0.95rem;
}

.contact-aside a {
  color: var(--c-pop);
  transition: color var(--duration) var(--ease);
}

.contact-aside a:hover { color: var(--c-pop-hover); }

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--c-text);
  letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  background: var(--c-bg-elevated);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236e747d' d='M1.4 0L6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.5rem;
}

.form-group .hint {
  font-size: 0.76rem;
  color: var(--c-text-tertiary);
  margin-top: 0.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

/* Conditional form sections */
.form-section {
  display: none;
  padding: var(--space-md);
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  animation: sectionReveal 0.35s var(--ease);
}

.form-section.visible { display: block; }

.form-section__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-pop);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--c-border-subtle);
}

@keyframes sectionReveal {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Checkbox pills */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 400;
  font-size: 0.84rem;
  cursor: pointer;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: all var(--duration) var(--ease);
  margin: 0;
  color: var(--c-text-secondary);
}

.checkbox-group label:hover {
  border-color: var(--c-text-tertiary);
}

.checkbox-group label:has(input:checked) {
  background: var(--c-accent-subtle);
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.checkbox-group input { display: none; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--c-border-subtle);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer-brand p {
  color: var(--c-text-tertiary);
  font-size: 0.88rem;
  max-width: 320px;
  margin-top: var(--space-sm);
}

.footer-col h4 {
  color: var(--c-text-tertiary);
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--c-text-secondary);
  transition: color var(--duration) var(--ease);
}

.footer-col a:hover { color: var(--c-heading); }

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--c-border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--c-text-tertiary);
}

/* ---- CTA Banner ---- */
.cta-banner {
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
  position: relative;
}

.cta-banner h2 {
  margin-bottom: var(--space-sm);
}

.cta-banner p {
  color: var(--c-text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto var(--space-lg);
}

/* Accent glow behind CTA */
.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 200px;
  background: radial-gradient(ellipse, var(--c-pop-subtle) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.6;
}

/* ---- Page sections (for single-page demo) ---- */
.page-section {
  display: none;
}

.page-section.active {
  display: block;
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-nav-bg);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--c-border-subtle);
    flex-direction: column;
    padding: var(--space-sm) 1.5rem var(--space-md);
    gap: 0;
  }

  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.6rem 0; }

  .hero-video { width: 100%; }
  .hero-backdrop { width: 100%; }

  .services-grid { grid-template-columns: 1fr; }
  .services-grid .service-card { grid-column: span 1; }
  .split, .split--wide-right { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .blog-item { grid-template-columns: 1fr; gap: 0.3rem; }
  .values li,
  .values--full li { grid-template-columns: 1fr; }
  .values li::before { margin-bottom: -0.5rem; }
}

@media (max-width: 600px) {
  .hero { padding-top: calc(64px + var(--space-xl)); padding-bottom: var(--space-xl); }
  .section { padding: var(--space-xl) 0; }
}

/* ---- Blog Post Content ---- */
.post-content {
  max-width: var(--max-w-narrow);
}

.post-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.post-content h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.post-content p {
  color: var(--c-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.post-content ul,
.post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--c-text-secondary);
}

.post-content li {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--c-code-bg);
  padding: 0.15em 0.45em;
  border-radius: 3px;
  color: var(--c-accent);
}

.post-content pre {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-subtle);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.post-content pre code {
  background: none;
  padding: 0;
  color: var(--c-text);
}

.post-content blockquote {
  border-left: 3px solid var(--c-pop);
  padding-left: var(--space-md);
  color: var(--c-text-secondary);
  margin: 1.5rem 0;
  font-style: italic;
}

.post-content a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--duration) var(--ease);
}

.post-content a:hover {
  color: var(--c-accent-hover);
}

/* ---- Form Success / Error ---- */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-xl);
}

.form-success.visible { display: block; }
.form-success h2 { color: var(--c-heading); margin-bottom: var(--space-sm); }
.form-success p { color: var(--c-text-secondary); }

.form-error {
  background: var(--c-pop-subtle);
  color: var(--c-pop);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  display: none;
  border: 1px solid var(--c-pop);
}

.form-error.visible { display: block; }