/*
  Shared static-site scaffold.
  No framework dependency: keep these primitives portable across templates.
*/

:root {
  color-scheme: light;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --color-bg: #fbfaf7;
  --color-surface: #ffffff;
  --color-surface-muted: #f2f0ea;
  --color-text: #151515;
  --color-muted: #626262;
  --color-border: rgba(21, 21, 21, 0.14);
  --color-primary: #0f5f63;
  --color-primary-strong: #083f42;
  --color-accent: #d45a38;
  --color-focus: #0a84ff;
  --shadow-soft: 0 24px 70px rgba(15, 31, 35, 0.12);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --container: 1120px;
  --container-wide: 1360px;
  --nav-height: 72px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 160ms;
  --duration-base: 260ms;
  --duration-slow: 700ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

img,
video {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

:focus {
  outline: none;
}

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

::selection {
  background: color-mix(in srgb, var(--color-accent) 28%, transparent);
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3 {
  line-height: 1.06;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

ul,
ol {
  margin-block: 0;
}

.site-shell {
  min-height: 100svh;
  overflow-x: clip;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 32px, var(--container-wide));
  margin-inline: auto;
}

.template-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: var(--nav-height);
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.template-nav__inner {
  display: flex;
  min-height: var(--nav-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.template-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.template-nav a,
.template-nav button,
.btn {
  min-height: 44px;
  min-width: 44px;
}

.template-nav a {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 0.55rem 0.85rem;
  color: var(--color-muted);
  font-weight: 700;
  text-decoration: none;
}

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

.hero {
  display: grid;
  min-height: calc(100svh - var(--nav-height));
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-block: clamp(4rem, 8vw, 8rem);
}

.hero--split {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
}

.hero__content {
  display: grid;
  gap: var(--space-5);
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 9vw, 7.5rem);
  letter-spacing: 0;
}

.hero p {
  max-width: 64ch;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-media {
  position: relative;
  overflow: hidden;
  min-height: clamp(320px, 56vw, 680px);
  border-radius: var(--radius-lg);
  background: var(--color-surface-muted);
  box-shadow: var(--shadow-soft);
}

.hero-media img,
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  padding-block: clamp(4rem, 9vw, 8rem);
}

.section--muted {
  background: var(--color-surface-muted);
}

.section__header {
  display: grid;
  max-width: 760px;
  gap: var(--space-3);
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section__header h2 {
  font-size: clamp(2rem, 5vw, 4rem);
}

.section__header p {
  color: var(--color-muted);
  font-size: 1.08rem;
}

.eyebrow {
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.feature-card {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.feature-card h3 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.feature-card p {
  color: var(--color-muted);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.stat {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

.stat__value {
  display: block;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  font-weight: 800;
  line-height: 1;
}

.stat__label {
  color: var(--color-muted);
  font-weight: 700;
}

.cta-panel {
  display: grid;
  gap: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-text);
  color: var(--color-bg);
  padding: clamp(2rem, 6vw, 5rem);
}

.cta-panel p {
  max-width: 64ch;
  color: color-mix(in srgb, var(--color-bg) 78%, transparent);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn,
.btn-secondary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0.75rem 1.1rem;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  transition:
    transform var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.btn {
  background: var(--color-primary);
  color: #fff;
}

.btn-secondary {
  border-color: var(--color-border);
  background: transparent;
  color: inherit;
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover,
  .btn-secondary:hover,
  .hover-lift:hover {
    transform: translateY(-2px);
  }
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

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

.reveal,
[data-reveal] {
  opacity: 0;
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out),
    clip-path var(--duration-slow) var(--ease-out),
    filter var(--duration-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, clip-path;
}

.reveal-up,
[data-reveal="up"] {
  transform: translateY(28px);
}

.reveal-scale,
[data-reveal="scale"] {
  transform: scale(0.94);
}

.reveal-mask,
[data-reveal="mask"] {
  clip-path: inset(0 0 100% 0);
}

.reveal-blur,
[data-reveal="blur"] {
  filter: blur(12px);
  transform: translateY(18px);
}

.is-visible {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 0 0);
  filter: none;
}

/* Story media must remain visible when a page opens directly at #story. */
[data-section="story"] figure[data-reveal] {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 0 0);
  filter: none;
}

[data-reveal-delay="1"] { --reveal-delay: 90ms; }
[data-reveal-delay="2"] { --reveal-delay: 180ms; }
[data-reveal-delay="3"] { --reveal-delay: 270ms; }
[data-reveal-delay="4"] { --reveal-delay: 360ms; }

@media (max-width: 900px) {
  .hero,
  .hero--split {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .template-nav__links {
    display: none;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }
}

@media (max-width: 640px) {
  .container,
  .container-wide {
    width: min(100% - 24px, var(--container));
  }

  .hero {
    min-height: auto;
    padding-block: 3rem;
  }

  .hero h1 {
    max-width: 11ch;
  }

  .hero-media {
    min-height: 280px;
    border-radius: var(--radius-md);
  }

  .feature-grid,
  .stat-grid {
    grid-template-columns: 1fr;
  }

  .button-row,
  .btn,
  .btn-secondary {
    width: 100%;
  }
}

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

  .reveal,
  [data-reveal] {
    opacity: 1;
    transform: none;
    clip-path: inset(0 0 0 0);
    filter: none;
  }
}