/* ==========================================================================
   Marcus Luckett — one-page site
   Concept: warm, literary, editorial. Ink-on-paper mood, teal + terracotta.
   ========================================================================== */

/* ---- Fonts ---- */
@import url('https://api.fontshare.com/v2/css?f[]=boska@400,500,600,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&display=swap');

/* ---- Design tokens ---- */
:root,
[data-theme='light'] {
  /* Surfaces — light, fresh neutral */
  --color-bg: #f6f9f9;
  --color-surface: #ffffff;
  --color-surface-2: #fbfdfd;
  --color-surface-offset: #edf3f3;
  --color-surface-offset-2: #e1eaea;
  --color-surface-dynamic: #d3e1e1;
  --color-divider: #dce6e6;
  --color-border: #c5d4d4;

  /* Text — cool neutral ink */
  --color-text: #1f2626;
  --color-text-muted: #5c6868;
  --color-text-faint: #99a6a6;
  --color-text-inverse: #f6f9f9;

  /* Primary accent — fresh cyan-teal */
  --color-primary: #0097b2;
  --color-primary-hover: #007993;
  --color-primary-active: #005f74;
  --color-primary-highlight: #cdeef3;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.08);
  --shadow-md: 0 6px 16px oklch(0.2 0.02 60 / 0.1);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 60 / 0.14);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1220px;

  --font-display: 'Boska', Georgia, serif;
  --font-body: 'Source Serif 4', Georgia, serif;
}

[data-theme='dark'] {
  --color-bg: #0e1516;
  --color-surface: #131c1d;
  --color-surface-2: #172122;
  --color-surface-offset: #16201f;
  --color-surface-offset-2: #1d2929;
  --color-surface-dynamic: #253231;
  --color-divider: #253130;
  --color-border: #34423f;

  --color-text: #e7eeee;
  --color-text-muted: #9fb0af;
  --color-text-faint: #66797a;
  --color-text-inverse: #131c1d;

  --color-primary: #29b6d1;
  --color-primary-hover: #52c6dd;
  --color-primary-active: #7bd6e8;
  --color-primary-highlight: #163a42;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.45);
}

/* ---- Type scale ---- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
  --text-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
  --text-xl: clamp(1.625rem, 1.3rem + 1.25vw, 2.375rem);
  --text-2xl: clamp(2.25rem, 1.4rem + 2.75vw, 4rem);
  --text-hero: clamp(2.75rem, 1.2rem + 5.5vw, 6.25rem);
}

/* ---- Spacing ---- */
:root {
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ---- Base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: var(--space-20);
}
body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: radial-gradient(
    circle at 15% 0%,
    color-mix(in oklab, var(--color-primary) 6%, transparent),
    transparent 45%
  );
}
img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}
ul[role='list'] {
  list-style: none;
}
button,
input {
  font: inherit;
  color: inherit;
}
h1,
h2,
h3 {
  text-wrap: balance;
  line-height: 1.12;
  font-family: var(--font-display);
  font-weight: 600;
}
p,
li,
figcaption {
  text-wrap: pretty;
  max-width: 68ch;
}
::selection {
  background: color-mix(in oklab, var(--color-primary) 25%, transparent);
  color: var(--color-text);
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
button {
  cursor: pointer;
  background: none;
  border: none;
}
a,
button,
input {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* ---- Layout helpers ---- */
.wrap {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.wrap--wide {
  max-width: var(--content-wide);
}
.wrap--narrow {
  max-width: var(--content-narrow);
}
section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: '';
  width: 1.25rem;
  height: 1px;
  background: var(--color-primary);
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}
.logo svg {
  width: 34px;
  height: 34px;
  color: var(--color-primary);
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav__links {
  display: flex;
  gap: var(--space-6);
}
.nav__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
}
.nav__links a:hover {
  color: var(--color-text);
}
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}
.nav__links a:hover::after {
  width: 100%;
}
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.nav__mobile-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.nav__mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding-bottom: var(--space-4);
}
.nav__mobile-menu a {
  padding: var(--space-3) var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  border-bottom: 1px solid var(--color-divider);
}
.nav__mobile-menu a:last-child {
  border-bottom: none;
}
@media (max-width: 720px) {
  .nav__links {
    display: none;
  }
  .nav__mobile-toggle {
    display: flex;
  }
  .nav__mobile-menu.is-open {
    display: flex;
  }
}

/* ---- Hero ---- */
.hero {
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
  padding-bottom: clamp(var(--space-12), 6vw, var(--space-20));
  display: grid;
  gap: var(--space-12);
}
.hero__content {
  max-width: 46rem;
}
.hero__kicker {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-5);
}
.hero h1 {
  font-size: var(--text-hero);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-6);
}
.hero h1 em {
  font-style: italic;
  color: var(--color-primary);
}
.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 38rem;
  margin-bottom: var(--space-8);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.hero__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-lg);
  background: var(--color-surface);
}
.hero__image img {
  width: 100%;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}
.btn--ghost {
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---- The Idea ---- */
.idea {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.idea__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-16);
  align-items: center;
}
.idea__text h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}
.idea__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.idea__text p strong {
  color: var(--color-text);
  font-weight: 600;
}
.idea__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-md);
}
@media (max-width: 860px) {
  .idea__grid {
    grid-template-columns: 1fr;
  }
  .idea__image {
    order: -1;
  }
}

/* ---- Pillars ---- */
.pillars__head {
  max-width: 40rem;
  margin-bottom: var(--space-12);
}
.pillars__head h2 {
  font-size: var(--text-2xl);
}
.pillars__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.pillar-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}
.pillar-card__icon svg {
  width: 22px;
  height: 22px;
}
.pillar-card h3 {
  font-size: var(--text-lg);
}
.pillar-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 980px) {
  .pillars__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .pillars__grid {
    grid-template-columns: 1fr;
  }
}

/* ---- Proof ---- */
.proof {
  background: var(--color-surface-offset);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.proof__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.teaser-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-8);
}
.teaser-card__tag {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.teaser-card p {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
}
.proof__more {
  text-align: center;
  margin-top: var(--space-10);
}
.proof__more a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}
.proof__more a:hover {
  text-decoration: underline;
}
@media (max-width: 720px) {
  .proof__grid {
    grid-template-columns: 1fr;
  }
}

/* ---- About ---- */
.about__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-16);
  align-items: center;
}
.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-md);
}
.about__text h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}
.about__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.about__text p strong {
  color: var(--color-text);
  font-weight: 600;
}
.about__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.credential {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}
@media (max-width: 860px) {
  .about__grid {
    grid-template-columns: 1fr;
  }
  .about__image {
    max-width: 22rem;
  }
}

/* ---- Join ---- */
.join {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  margin-inline: var(--space-6);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  text-align: center;
}
.join__inner {
  max-width: 34rem;
  margin-inline: auto;
}
.join h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}
.join p {
  color: color-mix(in oklab, var(--color-text-inverse) 82%, transparent);
  margin-inline: auto;
  margin-bottom: var(--space-8);
}
.join__form {
  display: flex;
  justify-content: center;
  min-height: 3.5rem;
}
.join__note {
  font-size: var(--text-xs);
  margin-top: var(--space-4);
  color: color-mix(in oklab, var(--color-text-inverse) 70%, transparent);
}

/* ---- Coming Soon ---- */
.soon {
  text-align: center;
}
.soon__inner {
  max-width: 36rem;
  margin-inline: auto;
}
.soon h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.soon p {
  color: var(--color-text-muted);
  margin-inline: auto;
  margin-bottom: var(--space-6);
}
.soon a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}
.soon a:hover {
  text-decoration: underline;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__links {
  display: flex;
  gap: var(--space-6);
}
.footer__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}
.footer__links a:hover {
  color: var(--color-primary);
}
.footer__meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}