/* =========================================================
   Master Roachi — landing page
   Direction: "Field Manual"
   Odin Project Foundations, Flexbox section (rebuilt)

   Single-theme by design: this is a paper document, so it
   commits to one light palette and paints every colour
   explicitly rather than inheriting anything.
   ========================================================= */

:root {
  /* palette */
  --paper: #f4f3ef;
  --paper-sunk: #eceae3;
  --card: #ffffff;
  --ink: #1a1d1a;
  --slate: #4a5450;
  --faint: #6a716d;
  --rule: #d9d7cf;
  --signal: #b4491c;
  --signal-deep: #8f380f;

  /* type */
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  /* rhythm */
  --shell: 1120px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(3.5rem, 9vw, 6.5rem);
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

/* ---------- shared primitives ---------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.7rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  z-index: 10;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.section-mark {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0;
}

.section-heading {
  font-size: clamp(1.6rem, 3.6vw, 2.25rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0.6rem 0 0;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.72rem 1.35rem;
  border-radius: 2px;
  border: 1px solid transparent;
  transition: background-color 120ms ease, border-color 120ms ease,
    color 120ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}

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

.btn-primary:hover {
  background: var(--signal-deep);
}

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

.btn-ghost:hover {
  border-color: var(--ink);
}

.btn-invert {
  background: var(--paper);
  color: var(--signal-deep);
  white-space: nowrap;
}

.btn-invert:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 5;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-block: 1rem;
}

.wordmark {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  margin-inline-start: auto;
  font-family: var(--mono);
  font-size: 0.78rem;
}

.nav a {
  color: var(--slate);
  text-decoration: none;
  padding-block: 0.2rem;
  border-bottom: 1px solid transparent;
}

.nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--signal);
}

/* ---------- hero ---------- */

.hero {
  border-bottom: 1px solid var(--rule);
}

.hero-inner {
  padding-block: var(--section-y);
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 62rem) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

.hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-wrap: balance;
  margin: 0.75rem 0 0;
  max-width: 18ch;
}

.hero-sub {
  color: var(--slate);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  max-width: 52ch;
  margin: 1.25rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* spec panel — the hero's "image", as a manual data block */

.spec {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--card);
  padding: 1.4rem 1.5rem 1.6rem;
}

.spec-title {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--rule);
}

.spec-list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.spec-row {
  display: grid;
  gap: 0.15rem;
}

@media (min-width: 30rem) {
  .spec-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}

.spec-row dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.spec-row dd {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.spec-row dd a {
  color: var(--signal);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

/* ---------- work ---------- */

.work {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--rule);
}

.cards {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 3px;
  overflow: hidden;
  grid-template-columns: 1fr;
}

@media (min-width: 40rem) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 66rem) {
  .cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.card {
  background: var(--card);
  padding: 1.4rem 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.card-index {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--signal);
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.card-title {
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}

.card-title a {
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.card-title a:hover {
  border-bottom-color: var(--signal);
  color: var(--signal);
}

.card-body {
  color: var(--slate);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

.card-meta {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  margin: auto 0 0;
  padding-top: 0.9rem;
}

/* ---------- quote ---------- */

.quote {
  background: var(--paper-sunk);
  border-bottom: 1px solid var(--rule);
}

.quote-inner {
  padding-block: var(--section-y);
}

.quote blockquote {
  margin: 1.25rem 0 0;
  max-width: 46ch;
  border-left: 2px solid var(--signal);
  padding-left: clamp(1rem, 3vw, 1.75rem);
}

.quote blockquote p {
  font-size: clamp(1.25rem, 3.2vw, 1.85rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin: 0;
}

.quote-attrib {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-top: 1.1rem;
}

.quote-attrib::before {
  content: "— ";
}

/* ---------- call to action ---------- */

.cta {
  padding-block: var(--section-y);
}

.cta-panel {
  background: var(--signal);
  color: var(--paper);
  border-radius: 3px;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
}

.cta-copy {
  max-width: 46ch;
}

.cta-mark {
  color: #fbede5;
}

.cta-heading {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0.6rem 0 0;
}

.cta-sub {
  color: #fae9e0;
  font-size: 0.95rem;
  margin: 0.7rem 0 0;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--ink);
  color: var(--paper);
}

.footer-inner {
  padding-block: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}

.footer-inner p {
  margin: 0;
}

.footer-note {
  color: #a8b0ac;
}

.footer-note a {
  color: var(--paper);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}