/* Tokens from DESIGN.md — WIRED-inspired, no shadows, square corners */

:root {
  --ink-black: #000000;
  --page-ink: #1a1a1a;
  --paper: #ffffff;
  --caption: #757575;
  --disabled: #999999;
  --hairline: #e2e8f0;
  --rule-editorial: #4a5568;
  --link-blue: #057dbc;
  --footer-ink: #1a1a1a;
  --error: #e53e3e;

  --font-display: "Playfair Display", "Times New Roman", Times, serif;
  --font-body: "Source Serif 4", "Georgia", serif;
  --font-ui: "Work Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Monaco", "Courier New", Courier, monospace;

  --space-page: clamp(1rem, 4vw, 4rem);
  --max-width: min(1120px, 100%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--page-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0.09px;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--ink-black);
  color: var(--paper);
  font-family: var(--font-ui);
  font-weight: 700;
  z-index: 1000;
  border: 2px solid var(--paper);
}

.skip-link:focus {
  left: var(--space-page);
  top: var(--space-page);
  outline: 2px solid var(--link-blue);
  outline-offset: 2px;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--ink-black);
}

.main-nav__inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0.85rem var(--space-page);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.main-nav__brand {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--page-ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.main-nav__brand:hover,
.main-nav__brand:focus-visible {
  color: var(--link-blue);
  border-bottom-color: var(--link-blue);
}

.main-nav__toggle {
  display: none;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.6rem 1rem;
  background: var(--paper);
  color: var(--ink-black);
  border: 2px solid var(--ink-black);
  border-radius: 0;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}

.main-nav__toggle:hover,
.main-nav__toggle:focus-visible {
  background: var(--ink-black);
  color: var(--paper);
}

.main-nav__toggle:focus-visible {
  outline: 2px solid var(--link-blue);
  outline-offset: 2px;
}

.main-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.95rem;
}

.main-nav__links a {
  color: var(--page-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.main-nav__links a:hover,
.main-nav__links a:focus-visible {
  color: var(--link-blue);
}

@media (max-width: 767px) {
  .main-nav__toggle {
    display: inline-flex;
  }

  .main-nav__links {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-top: 0.75rem;
    border-top: 1px solid var(--hairline);
  }

  .main-nav__links.is-open {
    display: flex;
  }

  .main-nav__inner {
    flex-wrap: wrap;
  }
}

/* —— Hero —— */
.hero {
  border-bottom: 1px solid var(--ink-black);
}

.hero__inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--space-page) clamp(2rem, 4vw, 3rem);
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.23;
  letter-spacing: 0.92px;
  text-transform: uppercase;
  color: var(--page-ink);
  margin: 0 0 0.5rem;
}

.display {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.5px;
  font-weight: 400;
  color: var(--page-ink);
  margin: 0 0 1rem;
  max-width: 20ch;
}

.deck {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  line-height: 1.47;
  letter-spacing: 0.108px;
  max-width: 52ch;
  margin: 0 0 1rem;
}

.hero__meta {
  margin: 0;
}

.caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--caption);
  line-height: 1.33;
}

/* —— Ribbon —— */
.ribbon {
  background: var(--ink-black);
  color: var(--paper);
}

.ribbon__inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0.65rem var(--space-page);
  border-top: 2px solid var(--ink-black);
  border-bottom: 2px solid var(--ink-black);
}

.ribbon__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.ribbon--section {
  scroll-margin-top: 6rem;
}

/* —— Article / prose —— */
.article {
  max-width: 1600px;
  margin: 0 auto;
  padding: clamp(1.5rem, 3vw, 2.5rem) var(--space-page) clamp(2rem, 4vw, 3.5rem);
  scroll-margin-top: 5rem;
}

.prose > * + * {
  margin-top: 1rem;
}

.prose h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.08;
  letter-spacing: -0.4px;
  font-weight: 400;
  margin: 0 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--ink-black);
}

.prose h2 {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.28px;
  margin: 2.25rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink-black);
}

.prose h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.prose h3 {
  font-family: var(--font-ui);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.29;
  letter-spacing: -0.144px;
  margin: 1.75rem 0 0.5rem;
}

.prose h4 {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  margin: 1.25rem 0 0.35rem;
}

.prose p,
.prose li {
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0.09px;
}

.prose strong {
  font-weight: 600;
}

.prose em {
  font-style: italic;
}

.prose a {
  color: var(--page-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose a:hover,
.prose a:focus-visible {
  color: var(--link-blue);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 2rem 0;
}

.prose blockquote {
  margin: 1.25rem 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--ink-black);
  font-size: 1.05rem;
  line-height: 1.47;
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
  margin: 0.75rem 0 1rem;
}

.prose li + li {
  margin-top: 0.35rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  margin: 1rem 0 1.5rem;
}

.prose th,
.prose td {
  border: 1px solid var(--ink-black);
  padding: 0.6rem 0.75rem;
  vertical-align: top;
  text-align: left;
}

.prose th {
  font-weight: 700;
  background: var(--paper);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--paper);
  border: 1px solid var(--hairline);
  padding: 0.1em 0.35em;
}

/* —— Curated profile sections —— */
.section-prose h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.section-prose__h2 {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.28px;
  margin: 0 0 0.75rem;
}

.lede {
  font-family: var(--font-body);
  font-size: 1.06rem;
  line-height: 1.47;
  letter-spacing: 0.09px;
  margin: 0 0 1.25rem;
  max-width: 60ch;
}

.pull-quote {
  font-family: var(--font-body);
  font-size: 1.08rem;
  line-height: 1.45;
  letter-spacing: 0.05px;
  margin: 1.75rem 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--ink-black);
  color: var(--page-ink);
}

.method-step {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

.method-step:first-of-type {
  margin-top: 0.5rem;
  padding-top: 0;
  border-top: none;
}

.method-step__kicker {
  margin-bottom: 0.35rem;
  color: var(--caption);
}

.method-step h3 {
  margin-top: 0;
}

.story-slab {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--ink-black);
}

.story-slab:first-of-type {
  margin-top: 1.25rem;
}

.story-slab .kicker {
  color: var(--caption);
  margin-bottom: 0.35rem;
}

.story-slab h3 {
  font-family: var(--font-ui);
  font-size: 1.06rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.story-slab .prose {
  margin: 0;
  max-width: 68ch;
}

.together-note {
  margin-top: 1.5rem;
  max-width: 52ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin: 1.5rem 0 0.75rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.35rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-decoration: none;
  border-radius: 0;
  border: 2px solid var(--ink-black);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}

.btn--primary {
  background: var(--paper);
  color: var(--ink-black);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--ink-black);
  color: var(--paper);
}

.btn--ghost {
  background: transparent;
  color: var(--page-ink);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  color: var(--link-blue);
  border-color: var(--page-ink);
}

.cta-hint {
  margin: 0;
}

.section-prose--cta {
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* —— Color palette (DESIGN.md §2) —— */
.palette .kicker {
  margin-bottom: 0.5rem;
}

.palette h2 {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.28px;
  margin: 0 0 0.75rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--ink-black);
}

.palette__lede {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  max-width: 62ch;
  margin: 0 0 1.5rem;
}

.palette__group {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink-black);
}

.palette__group:first-of-type {
  margin-top: 0.5rem;
}

.palette__group-title {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--page-ink);
}

.palette__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.palette-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--hairline);
}

.palette-row:last-child {
  border-bottom: none;
}

.palette-row__chip {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  background: var(--swatch, #ccc);
  border: 2px solid var(--ink-black);
  border-radius: 0;
  box-shadow: none;
}

.palette-row--light .palette-row__chip {
  box-shadow: inset 0 0 0 1px var(--hairline);
}

.palette-row--hairline .palette-row__chip {
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.palette-row__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
  flex: 1;
}

.palette-row__name {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--page-ink);
}

.palette-row__hex {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--page-ink);
  background: transparent;
  border: none;
  padding: 0;
}

.palette-row__note {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--caption);
  max-width: 52ch;
}

.palette-row__note code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  border: 1px solid var(--hairline);
  padding: 0.05em 0.25em;
  background: var(--paper);
}

.palette__footnote {
  margin: 1rem 0 0;
  max-width: 60ch;
  color: var(--caption);
}

.palette__gradient-note {
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ink-black);
  max-width: 58ch;
  color: var(--caption);
}

.palette__gradient-note strong {
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--page-ink);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

/* —— Footer —— */
.site-footer {
  background: var(--footer-ink);
  color: var(--paper);
  margin-top: 0;
  border-top: 2px solid var(--ink-black);
}

.site-footer__inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 2.5rem var(--space-page) 3rem;
}

.site-footer__kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--hairline);
  margin: 0 0 0.75rem;
}

.site-footer__text {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  line-height: 1.45;
  max-width: 72ch;
  margin: 0 0 1rem;
  color: #e8e8e8;
}

.site-footer__text strong {
  font-weight: 700;
  color: var(--paper);
}

.site-footer__text code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  border: 1px solid var(--caption);
  padding: 0.05em 0.3em;
}

.site-footer__legal {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  margin: 0;
}

.site-footer__legal a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer__legal a:hover,
.site-footer__legal a:focus-visible {
  color: var(--link-blue);
}

:focus-visible {
  outline: 2px solid var(--link-blue);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .main-nav__toggle {
    transition: none;
  }
}