/* Source Cortex — marketing site
   Dark editorial palette · warm copper accent · mobile-first */

:root {
  --ink: #0c0f14;
  --ink-2: #131821;
  --ink-3: #1a2130;
  --line: rgba(232, 196, 154, 0.12);
  --line-strong: rgba(232, 196, 154, 0.28);
  --text: #ebe6dc;
  --muted: #9a9388;
  --faint: #6b655c;
  --copper: #c4844a;
  --copper-bright: #e8c49a;
  --copper-deep: #8f5a2e;
  --ok: #7a9e7e;
  --radius: 14px;
  --max: 1080px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-body: "Manrope", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--ink);
  /* subtle radial wash + grain */
  background-image:
    radial-gradient(ellipse 90% 55% at 10% -10%, rgba(196, 132, 74, 0.14), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 0%, rgba(26, 33, 48, 0.9), transparent 50%),
    linear-gradient(180deg, var(--ink) 0%, #0a0c10 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a {
  color: var(--copper-bright);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: #f3d9b4;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}

.wrap {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(12, 15, 20, 0.72);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand:hover {
  color: var(--copper-bright);
}

.brand img {
  width: 34px;
  height: 34px;
}

.brand-name {
  font-size: 0.95rem;
}

.brand-name span {
  color: var(--muted);
  font-weight: 500;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

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

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--ink-2);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="false"] .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
}

/* mobile drawer */
.nav-links.is-open {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  padding: 1rem 1rem 1.25rem;
  background: rgba(12, 15, 20, 0.96);
  border-bottom: 1px solid var(--line);
  gap: 0.85rem;
}

/* —— Hero —— */
.hero {
  padding: 4.5rem 0 3.5rem;
}

@media (min-width: 768px) {
  .hero { padding: 6.5rem 0 5rem; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.75rem 0.35rem 0.45rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(196, 132, 74, 0.08);
  color: var(--copper-bright);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--copper);
  box-shadow: 0 0 0 4px rgba(196, 132, 74, 0.2);
}

.hero h1 {
  margin: 0 0 1.25rem;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.1rem);
  font-weight: 500;
  font-variation-settings: "SOFT" 40, "WONK" 0.4;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text);
}

.hero h1 em {
  font-style: italic;
  font-weight: 450;
  color: var(--copper-bright);
}

.lede {
  margin: 0 0 2rem;
  max-width: 38ch;
  color: var(--muted);
  font-size: 1.125rem;
  line-height: 1.7;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 48px;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #d49a5c, var(--copper-deep));
  color: #140e08;
  box-shadow: 0 10px 30px rgba(196, 132, 74, 0.22);
}

.btn-primary:hover {
  color: #140e08;
  background: linear-gradient(135deg, #e0ab72, #a06634);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}

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

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.25rem;
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.meta-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text);
}

.meta-item span {
  color: var(--faint);
  font-size: 0.85rem;
}

/* —— Sections —— */
section {
  padding: 3.5rem 0;
}

@media (min-width: 768px) {
  section { padding: 4.5rem 0; }
}

.section-head {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
  max-width: 42rem;
}

.section-kicker {
  margin: 0;
  color: var(--copper);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

/* —— Shop —— */
.shop-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .shop-grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 1.25rem;
  }
}

.shop-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 1.6rem 1.5rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background:
    linear-gradient(165deg, rgba(196, 132, 74, 0.07), transparent 42%),
    var(--ink-2);
  overflow: hidden;
}

.shop-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 196, 154, 0.12), transparent 70%);
  pointer-events: none;
}

.shop-card.amazon {
  background:
    linear-gradient(165deg, rgba(122, 158, 126, 0.08), transparent 42%),
    var(--ink-2);
}

.shop-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 500;
}

.shop-card p {
  margin: 0;
  color: var(--muted);
  flex: 1;
}

.shop-tag {
  display: inline-flex;
  width: fit-content;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--copper-bright);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.shop-card.amazon .shop-tag {
  color: #b7d0ba;
  border-color: rgba(122, 158, 126, 0.35);
}

.placeholder-note {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.35rem;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  background: rgba(196, 132, 74, 0.1);
  border: 1px dashed rgba(196, 132, 74, 0.45);
  color: var(--copper-bright);
  font-size: 0.78rem;
  font-weight: 600;
}

.shop-card .btn {
  align-self: flex-start;
  margin-top: 0.25rem;
}

/* —— About —— */
.about-panel {
  display: grid;
  gap: 1.5rem;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background: var(--ink-2);
}

@media (min-width: 800px) {
  .about-panel {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
    padding: 2.25rem;
    gap: 2.5rem;
  }
}

.about-copy p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.about-copy p:last-child {
  margin-bottom: 0;
}

.about-aside {
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--ink-3);
}

.about-aside h3 {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--copper-bright);
}

.about-aside dl {
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.about-aside dt {
  margin: 0;
  color: var(--faint);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-aside dd {
  margin: 0.15rem 0 0;
  color: var(--text);
  font-weight: 500;
}

/* —— Contact —— */
.contact-card {
  display: grid;
  gap: 1.25rem;
  padding: 1.75rem;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(196, 132, 74, 0.12), transparent 55%),
    var(--ink-2);
}

@media (min-width: 700px) {
  .contact-card {
    grid-template-columns: 1.3fr auto;
    align-items: center;
    padding: 2rem 2.25rem;
  }
}

.contact-card h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  font-weight: 500;
}

.contact-card p {
  margin: 0;
  color: var(--muted);
  max-width: 36ch;
}

.mail-link {
  display: inline-flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: rgba(12, 15, 20, 0.55);
  text-decoration: none;
  color: var(--text);
  min-width: min(100%, 260px);
}

.mail-link:hover {
  border-color: var(--copper);
  color: var(--copper-bright);
}

.mail-link small {
  color: var(--faint);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.mail-link strong {
  font-size: 1.05rem;
  font-weight: 600;
  word-break: break-all;
}

/* —— Footer —— */
.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.88rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-row a {
  color: var(--muted);
  text-decoration: none;
}

.footer-row a:hover {
  color: var(--copper-bright);
}

/* —— Utilities —— */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}