/* =========================================================================
   style.css — Design tokens, layout primitives, and component styles.
   Media queries in responsive.css, keyframes/transitions in animations.css.
   ========================================================================= */

/* ---------------------------------------------------------------------
   1. Design tokens
   --------------------------------------------------------------------- */
:root {
  /* Core palette — warm charcoal + soft sky blue */
  --color-bg: #141414;
  --color-surface: #1e1e1e;
  --color-surface-raised: #2a2a2a;
  --color-border: #393939;
  --color-primary: #72b7f0;
  --color-primary-soft-tone: #a4d0f6;
  --color-accent: #4a96d8;
  --color-text: #e8e8e8;
  --color-muted: #949494;

  /* Derived / utility colors */
  --color-primary-soft: rgba(114, 183, 240, 0.12);
  --color-accent-soft: rgba(74, 150, 216, 0.12);
  --color-border-soft: rgba(57, 57, 57, 0.6);
  --color-overlay: rgba(20, 20, 20, 0.72);
  --color-glow: rgba(114, 183, 240, 0.35);
  --color-success: #34D399;

  /* Typography */
  --font-heading: "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 760px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-card: 4px;
  --radius-btn: 4px;
  --nav-height: 76px;

  /* Motion */
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 180ms;
  --duration-base: 320ms;
  --duration-slow: 640ms;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
}

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input,
textarea {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

p {
  color: var(--color-muted);
  line-height: 1.7;
}

/* Custom focus ring instead of removing outlines */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link — visually hidden until focused */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  background: var(--color-primary);
  color: #141414;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
  transition: top var(--duration-base) var(--ease-standard);
}

.skip-link:focus {
  top: var(--space-sm);
}

/* ---------------------------------------------------------------------
   3. Layout primitives
   --------------------------------------------------------------------- */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: clamp(var(--space-md), 4vw, var(--space-3xl));
}

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

.section {
  padding-block: var(--space-2xl);
}

.section--tight {
  padding-block: var(--space-xl);
}

.section--no-bottom {
  padding-bottom: 0;
}

.section--no-top {
  padding-top: 0;
}

.section-head {
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
  text-align: center;
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* Centered contexts: shorter bars on both sides */
.section-head .eyebrow,
.page-hero .eyebrow {
  position: relative;
}

.section-head .eyebrow::before,
.page-hero .eyebrow::before {
  width: 14px;
}

.section-head .eyebrow::after,
.page-hero .eyebrow::after {
  content: "";
  width: 14px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.section-head p {
  font-size: 1.0625rem;
}

/* ---------------------------------------------------------------------
   4. Navigation
   --------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 600;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    backdrop-filter var(--duration-base) var(--ease-standard);
}

.site-header.is-scrolled {
  background: rgba(20, 20, 20, 0.75);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--color-border-soft);
}

.nav {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav__center {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: auto;
}

.nav__brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__brand:hover,
.nav__brand:focus-visible {
  color: var(--color-primary);
}

.signature__svg {
  display: block;
  height: 40px;
  width: 110px;
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__brand:hover .signature__svg,
.nav__brand:focus-visible .signature__svg {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-muted);
  position: relative;
  padding: 0.35rem 0;
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-base) var(--ease-standard);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text);
}

.nav__link:hover::after,
.nav__link:focus-visible::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

.nav__link[aria-current="page"] {
  color: var(--color-text);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.btn.nav__cta {
  display: none;
  padding: 0.75rem 1.1rem;
  line-height: 1;
}

/* Mobile hamburger toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  z-index: 600;
  position: relative;
}

.nav__toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile fullscreen menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 550;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--duration-slow) var(--ease-standard),
    opacity var(--duration-slow) var(--ease-standard),
    visibility 0s linear var(--duration-slow);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: transform var(--duration-slow) var(--ease-standard),
    opacity var(--duration-slow) var(--ease-standard),
    visibility 0s linear 0s;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-menu__link {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 8vw, 2.5rem);
  font-weight: 600;
  color: var(--color-text);
}

.mobile-menu__footer {
  margin-top: var(--space-xl);
  display: flex;
  gap: var(--space-md);
}

.mobile-menu__footer a {
  color: var(--color-muted);
  font-size: 0.9375rem;
}

body.menu-open {
  overflow: hidden;
}

/* ---------------------------------------------------------------------
   5. Buttons
   --------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    background var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard);
  will-change: transform;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #141414;
  box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.18) inset,
    0 8px 24px -8px var(--color-glow);
}

.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, var(--color-primary-soft-tone), var(--color-primary));
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-standard);
}

.btn--primary:hover {
  transform: translateY(-2px) scale(1.015);
  box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.25) inset,
    0 12px 32px -6px var(--color-glow);
}

.btn--primary:hover::before {
  opacity: 1;
}

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

.btn--secondary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-primary);
  transform: translateX(-102%);
  transition: transform var(--duration-base) var(--ease-standard);
}

.btn--secondary:hover {
  color: #141414;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn--secondary:hover::after {
  transform: translateX(0);
}

.btn--ghost {
  padding: 0.6rem 0.1rem;
  color: var(--color-muted);
  border-radius: 0;
  background-image: linear-gradient(var(--color-primary), var(--color-primary));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
  transition: color var(--duration-base) var(--ease-standard),
    background-size var(--duration-base) var(--ease-standard);
}

.btn--ghost:hover {
  color: var(--color-text);
  background-size: 100% 2px;
}

.btn--ghost:hover,
.btn--ghost:active {
  transform: none;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---------------------------------------------------------------------
   6. Hero
   --------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: calc(var(--nav-height) + var(--space-lg));
  padding-bottom: var(--space-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-bg);
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.2;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 75%);
  mask-image: linear-gradient(to bottom, black 0%, transparent 75%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
  text-align: left;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.hero__eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.18);
}

.hero__title {
  font-size: clamp(2.5rem, 6.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.hero__title .grad,
.page-hero h1 .grad {
  background: linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-primary-soft-tone),
    var(--color-primary),
    var(--color-accent)
  );
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradRoll 5s linear infinite;
}

@keyframes gradRoll {
  from {
    background-position: 0% 0;
  }
  to {
    background-position: -300% 0;
  }
}

.hero__lead {
  margin-top: var(--space-md);
  font-size: 1.1875rem;
  max-width: 46ch;
  color: var(--color-muted);
}

.hero__actions {
  margin-top: var(--space-lg);
}

.hero__portrait-wrap {
  display: flex;
  justify-content: center;
}

.hero__portrait {
  width: min(360px, 75vw);
  position: relative;
}

.hero__portrait img {
  width: 100%;
  height: auto;
  display: block;
  -webkit-mask-image: linear-gradient(to bottom, black 82%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 82%, transparent 100%);
}

/* ---------------------------------------------------------------------
   7. Cards (generic)
   --------------------------------------------------------------------- */
.card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard);
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary-soft-tone);
  box-shadow: var(--shadow-md);
}

.card h3,
.card p {
  position: relative;
  z-index: 1;
}

.card h3 {
  font-size: 1.1875rem;
  margin-bottom: 0.6rem;
  margin-top: var(--space-xs);
}

.card p {
  font-size: 0.9375rem;
}

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

/* ---------------------------------------------------------------------
   9. About / teaser
   --------------------------------------------------------------------- */
.about-teaser {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.about-copy p + p {
  margin-top: var(--space-sm);
}

.pull-quote {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  max-width: 420px;
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
}

.pull-quote cite {
  display: block;
  margin-top: var(--space-sm);
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
}

.about-story h3 {
  font-size: 1.375rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.about-story h3:first-child {
  margin-top: 0;
}

.about-story--solo {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  text-align: center;
}

.about-story--solo .about-story__chapter p {
  text-align: center;
}

.about-story--solo .pull-quote {
  text-align: left;
  margin-left: auto;
  margin-right: auto;
}

.chapter-divider {
  width: 48px;
  height: 2px;
  margin: var(--space-lg) auto;
  border: none;
  background: var(--color-accent);
  border-radius: 2px;
}

.about-figure {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.about-figure__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  width: 100%;
}

.about-figure__divider {
  width: 100%;
  border: none;
  border-top: 1px solid var(--color-border);
}

.about-figure__number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
}

.about-figure__number .grad {
  background: linear-gradient(135deg, var(--color-primary-soft-tone), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.about-figure__label {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
  max-width: 32ch;
}

/* ---------------------------------------------------------------------
   10. Achievements / stats
   --------------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  max-width: 920px;
  margin-inline: auto;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

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

.stat__number {
  font-family: var(--font-heading);
  font-size: clamp(2.75rem, 6vw, 3.75rem);
  font-weight: 700;
  color: var(--color-text);
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.15rem;
}

.stat__label {
  margin-top: 0.4rem;
  font-size: 0.875rem;
  color: var(--color-muted);
  font-weight: 500;
}

/* ---------------------------------------------------------------------
   11. Expertise grid
   --------------------------------------------------------------------- */
.expertise-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

/* ---------------------------------------------------------------------
   12. Technology badges (grouped)
   --------------------------------------------------------------------- */
.tech-groups {
  display: grid;
  gap: var(--space-lg);
}

.tech-group h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.tech-group__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip {
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard),
    background var(--duration-fast) var(--ease-standard);
}

.chip:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-2px);
}

/* ---------------------------------------------------------------------
   13. Leadership cards
   --------------------------------------------------------------------- */
.leadership-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.leadership-grid .card {
  flex: 1 1 100%;
}

/* ---------------------------------------------------------------------
   14. Timeline (experience)
   --------------------------------------------------------------------- */
.timeline {
  position: relative;
  margin-top: var(--space-lg);
  padding-left: calc(var(--space-lg) + 12px);
  border-left: 2px solid var(--color-border);
  margin-left: 12px;
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-2xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: calc(-1 * (var(--space-lg) + 12px));
  top: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-btn);
  background: #ffffff;
  border: 2px solid var(--color-border);
  transition: border-color var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
  --timeline-marker-position: translateX(-50%);
  transform: var(--timeline-marker-position);
}

.timeline__item:hover .timeline__marker,
.timeline__item:focus-within .timeline__marker {
  border-color: var(--color-primary);
}

.timeline__marker img {
  width: 100%;
  height: 100%;
  display: block;
  padding: 8px;
  object-fit: contain;
  box-sizing: border-box;
}

.timeline__marker--generic {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.timeline__marker--generic svg {
  width: 60%;
  height: 60%;
}

.timeline__company {
  font-size: 0.9375rem;
  color: var(--color-primary);
  font-weight: 600;
  display: block;
  margin-bottom: 0.3rem;
}

.timeline__year {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.25rem;
}

.timeline__role {
  font-size: 0.8125rem;
  color: var(--color-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.timeline__item h3 {
  font-size: 1.375rem;
  margin-bottom: 0.2rem;
}

.timeline__item p {
  font-size: 0.9375rem;
  max-width: 60ch;
}

/* ---------------------------------------------------------------------
   15. Contact
   --------------------------------------------------------------------- */
.contact-hero {
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

.contact-links {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  max-width: 920px;
  margin-inline: auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--color-text);
}

.contact-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
  transition: color var(--duration-base) var(--ease-standard);
}

.contact-card h3 {
  transition: color var(--duration-base) var(--ease-standard);
}

.contact-card:hover .contact-card__icon,
.contact-card:hover h3 {
  color: var(--color-primary);
}

.contact-note {
  margin-top: var(--space-xl);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

/* ---------------------------------------------------------------------
   16. Contact CTA (index)
   --------------------------------------------------------------------- */
.cta-band {
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 0;
  text-align: center;
}

.cta-band h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  max-width: 20ch;
  margin-inline: auto;
}

.cta-band p {
  margin-top: var(--space-sm);
  margin-inline: auto;
  font-size: 1.0625rem;
  max-width: 50ch;
}

.cta-band .btn-row {
  justify-content: center;
  margin-top: var(--space-lg);
}

/* ---------------------------------------------------------------------
   17. Footer
   --------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border-soft);
  padding-block: var(--space-md);
}

.footer-bottom {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-bottom p {
  flex: 1 1 auto;
  min-width: 0;
}

.footer-bottom p:last-child {
  text-align: right;
}

/* ---------------------------------------------------------------------
   18. Page header (inner pages)
   --------------------------------------------------------------------- */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 6.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 18ch;
  margin-inline: auto;
}

.page-hero p {
  margin-top: var(--space-md);
  margin-inline: auto;
  font-size: 1.125rem;
  max-width: 56ch;
}

/* ---------------------------------------------------------------------
   19. Utility classes
   --------------------------------------------------------------------- */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--space-lg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}