/* =================================================================
   InkedUp — shared site chrome
   Loaded by every page. Page-specific styles stay inline per page.
   ================================================================= */

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; }

/* === SKIP LINK === */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  padding: 0.65rem 0.95rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  z-index: 200;
  transform: translateY(-110%);
  transition: transform 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: none;
}

/* === FONT VARS === */
:root {
  --accent: #e05c2a;
  --accent-hover: #f97316;
  --display: "Anton", "Arial Narrow", sans-serif;
  --sans: "Mona Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

/* === DARK (default) === */
:root,
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-elevated: #111;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --text: #f5f1ec;
  --muted: #8a8580;
  --grain-opacity: 0.05;
  --focus-bg: rgba(224, 92, 42, 0.05);
  --input-bg: rgba(255, 255, 255, 0.02);
  --error: #f28b82;
  --error-bg: rgba(242, 139, 130, 0.08);
}

/* === LIGHT === */
:root[data-theme="light"] {
  --bg: #f5f1ec;
  --bg-elevated: #fff;
  --line: rgba(0, 0, 0, 0.14);
  --line-strong: rgba(0, 0, 0, 0.28);
  --text: #0a0a0a;
  --muted: #6a655f;
  --grain-opacity: 0.04;
  --focus-bg: rgba(224, 92, 42, 0.07);
  --input-bg: rgba(0, 0, 0, 0.02);
  --error: #b3261e;
  --error-bg: rgba(179, 38, 30, 0.07);
}

/* Auto-follow system if no explicit data-theme */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f5f1ec;
    --bg-elevated: #fff;
    --line: rgba(0, 0, 0, 0.14);
    --line-strong: rgba(0, 0, 0, 0.28);
    --text: #0a0a0a;
    --muted: #6a655f;
    --grain-opacity: 0.04;
    --focus-bg: rgba(224, 92, 42, 0.07);
    --input-bg: rgba(0, 0, 0, 0.02);
    --error: #b3261e;
    --error-bg: rgba(179, 38, 30, 0.07);
  }
}

/* === BODY === */
body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--sans);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

/* === GRAIN === */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 1;
}

/* === BRAND === */
.brand {
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

/* === SITE NAV === */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.site-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav-link {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.site-nav-link:hover,
.site-nav-link:focus-visible {
  color: var(--accent);
}

.site-nav-link[aria-current="page"] {
  color: var(--accent);
}

.site-nav-link:focus-visible,
.site-nav-cta:focus-visible,
.side-switch:focus-visible,
.nav-toggle:focus-visible,
.mobile-menu-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.site-nav-actions {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.site-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav-cta:hover {
  background: var(--accent);
  color: #fff;
}

.side-switch {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.side-switch:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  color: var(--text);
  cursor: pointer;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 880px) {
  .site-nav-links,
  .site-nav-actions {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

/* === MOBILE MENU === */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 100;
  padding: 5rem clamp(1.5rem, 5vw, 3rem) 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow-y: auto;
}

.mobile-menu.is-open {
  transform: translateY(0);
}

.mobile-menu-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0.5rem;
  color: var(--text);
  cursor: pointer;
}

.mobile-menu-close svg {
  width: 26px;
  height: 26px;
}

.mobile-menu .site-nav-link {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--text);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}

.mobile-menu .site-nav-link:hover {
  color: var(--accent);
}

.mobile-menu-foot {
  margin-top: auto;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.mobile-menu .site-nav-cta {
  align-self: flex-start;
  font-size: 0.85rem;
  padding: 0.85rem 1.4rem;
}

/* === FOOTER === */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: clamp(2.5rem, 5vw, 4rem) 0 1.25rem;
  font-family: var(--sans);
  background: var(--bg);
  position: relative;
  z-index: 2;
}

.site-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.footer-tagline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.05;
  letter-spacing: 0;
  text-transform: uppercase;
  margin: 0 0 clamp(2rem, 4vw, 3rem);
  max-width: 32rem;
  text-wrap: balance;
}

.footer-tagline .em {
  color: var(--accent);
  font-style: italic;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .footer-cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

.footer-col-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col-list a {
  font-size: 0.92rem;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col-list a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-bottom .brand {
  font-size: 1.1rem;
}

/* === THEME TOGGLE === */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.theme-toggle button {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0.15rem 0.3rem;
  margin: 0;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease;
}

.theme-toggle button:hover,
.theme-toggle button:focus-visible {
  color: var(--text);
}

.theme-toggle button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle button[aria-pressed="true"] {
  color: var(--accent);
}

.theme-toggle .sep {
  opacity: 0.45;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.95rem 1.5rem;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

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

.btn-ghost:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn .arrow {
  display: inline-block;
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.btn:hover .arrow {
  transform: translateX(6px);
}

/* === LABELS / SECTIONS / TYPOGRAPHY === */
.label {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 1.25rem;
  display: inline-block;
  padding: 0.32rem 0.6rem;
  border: 1px solid var(--accent);
}

.label .accent {
  font-weight: 700;
}

.section {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--line);
}

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.25rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  margin: 0;
  text-wrap: balance;
}

.section-title .em {
  color: var(--accent);
  font-style: italic;
}

/* === PAGE CONTAINER === */
.page {
  position: relative;
  z-index: 2;
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.25rem, 4vw, 3rem) clamp(2.5rem, 5vw, 4rem);
}

.page--narrow {
  max-width: 760px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* === MOBILE — shared chrome polish === */
@media (max-width: 640px) {
  .site-nav-inner { padding: 0.85rem 1rem; gap: 0.75rem; }
  .brand { font-size: 1.25rem; }
  .nav-toggle { padding: 0.55rem; }
  .nav-toggle svg { width: 24px; height: 24px; }

  .page { padding: 1.25rem 1rem 2.25rem; }
  .page--narrow { padding-inline: 1rem; }

  .label { font-size: 0.7rem; padding: 0.28rem 0.5rem; margin-bottom: 1rem; }

  .section { padding-block: 2.25rem; }
  .section-title { font-size: clamp(2rem, 9vw, 2.75rem); line-height: 1; }

  /* Buttons: meet touch targets without forcing full-width
     (form-nav layouts pair two .btn side-by-side) */
  .btn { padding: 1rem 1.4rem; font-size: 0.85rem; min-height: 48px; justify-content: center; }
  .hero .btn { width: 100%; }
  .cta-block .btn { width: 100%; max-width: 24rem; }
  .step-nav { gap: 0.65rem; }

  .footer-tagline { font-size: clamp(1.4rem, 6vw, 1.85rem); }
  .footer-bottom { font-size: 0.65rem; gap: 0.6rem; }
  .footer-bottom .brand { font-size: 1rem; }

  .mobile-menu { padding: 4.5rem 1.25rem 2.25rem; }
  .mobile-menu .site-nav-link { font-size: clamp(1.85rem, 8vw, 2.6rem); }
  .mobile-menu .site-nav-cta { padding: 1rem 1.4rem; font-size: 0.85rem; }
}

/* Prevent iOS zoom-on-focus for form inputs */
@media (max-width: 640px) {
  input, select, textarea { font-size: 16px !important; }
}