/* ==========================================================================
   Glotraff — mockup styles
   Mobile-first, 320px baseline. No horizontal overflow by design.
   ========================================================================== */

:root {
  --font-display: "Space Grotesk", "Arial Black", Arial, "Helvetica Neue", Helvetica, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --color-canvas: #F6F1E7;
  --color-canvas-alt: #EEE6D6;
  --color-ink: #211F1A;
  --color-ink-soft: #55504A;
  --color-line: rgba(33, 31, 26, 0.14);
  --color-accent: #FF9900;
  --color-accent-ink: #1A1A1A;

  --max-width: 1200px;
  --gutter: 20px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
  width: 100%;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

p { margin: 0 0 1em; max-width: 42em; }

a { color: inherit; text-decoration: none; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button {
  font-family: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 12px 18px;
  background: var(--color-ink);
  color: var(--color-canvas);
  font-family: var(--font-display);
  font-weight: 600;
  transform: translateY(-110%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* ---- Focus states ---- */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Layout helpers ---- */
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
  margin: 0 0 0.9em;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  background: var(--color-accent);
  vertical-align: middle;
  transform: translateY(-1px);
}

.section-lede {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  max-width: 38em;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 14px 26px;
  border: 2px solid var(--color-ink);
  border-radius: 2px;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.btn-primary:hover { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-canvas); }

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

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

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand { display: inline-flex; flex-shrink: 0; }
.brand-logo { height: 28px; width: auto; }

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  margin: -8px;
}
.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 18px;
}
.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-ink);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-line);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s var(--ease);
}
.site-nav.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.nav-list {
  display: flex;
  flex-direction: column;
  padding: 8px var(--gutter) 20px;
}
.nav-list li { border-top: 1px solid var(--color-line); }
.nav-list li:first-child { border-top: 0; }
.nav-list a {
  display: block;
  padding: 16px 4px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.nav-list a:hover { color: var(--color-accent-ink); }

.nav-cta {
  margin-top: 10px;
  display: inline-block !important;
  background: var(--color-accent);
  color: var(--color-accent-ink) !important;
  padding: 12px 20px !important;
  border-radius: 2px;
  text-align: center;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--color-line);
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.1rem, 9vw, 2.6rem);
  max-width: 14ch;
}
.hero-title span { display: block; }

.hero-lede {
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  max-width: 34em;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-flow {
  width: 100%;
  max-width: 330px;
  margin: 0 auto;
  justify-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flow-stage {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  border: 2px solid var(--color-ink);
  background: var(--color-canvas);
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
}

.flow-stage::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -18px;
  width: 18px;
  height: calc(100% + 4px);
  background: var(--color-accent);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.flow-stage-traffic { width: 100%; }
.flow-stage-conversion { width: 88%; }
.flow-stage-retention { width: 76%; }
.flow-stage-growth {
  width: 64%;
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.flow-stage-growth::after { background: var(--color-ink); }

.flow-index {
  font-size: 0.7rem;
  color: var(--color-ink-soft);
}
.flow-stage-growth .flow-index { color: var(--color-ink); }
.flow-label { font-size: 0.88rem; }

.flow-arrow {
  display: block;
  width: 2px;
  height: 22px;
  background: var(--color-ink);
  position: relative;
}
.flow-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-ink);
  border-bottom: 2px solid var(--color-ink);
  transform: translateX(-50%) rotate(45deg);
}

/* ==========================================================================
   Capabilities
   ========================================================================== */
.capabilities { padding: 72px 0; }

.section-head h2 {
  font-size: clamp(1.9rem, 7vw, 2.4rem);
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-top: 44px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.card {
  background: var(--color-canvas);
  padding: 32px 24px;
  position: relative;
}

.card-index {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  margin-bottom: 18px;
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.4em;
}

.card p { margin: 0; color: var(--color-ink-soft); }

/* ==========================================================================
   How we work
   ========================================================================== */
.how-we-work {
  padding: 72px 0;
  background: var(--color-canvas-alt);
  border-bottom: 1px solid var(--color-line);
  position: relative;
}

.how-we-work h2 { font-size: clamp(1.9rem, 7vw, 2.4rem); }

.steps {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.step {
  padding: 28px 0;
  border-top: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 20px;
  row-gap: 6px;
  align-items: start;
}
.steps .step:last-child { border-bottom: 1px solid var(--color-line); }

.step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-accent-ink);
  border: 2px solid var(--color-accent);
  width: 46px;
  height: 46px;
  line-height: 42px;
  text-align: center;
  grid-row: 1 / span 2;
}

.step h3 { margin: 0; font-size: 1.15rem; grid-column: 2; }
.step p { margin: 0; color: var(--color-ink-soft); grid-column: 2; }

/* ==========================================================================
   About
   ========================================================================== */
.about { padding: 72px 0; }

.about-inner {
  display: grid;
  gap: 32px;
}

.about-copy h2 { font-size: clamp(1.9rem, 7vw, 2.4rem); }
.about-copy p { color: var(--color-ink-soft); font-size: 1.05rem; }

.about-rule {
  height: 3px;
  background: var(--color-accent);
  width: 72px;
}

/* ==========================================================================
   Final CTA
   ========================================================================== */
.final-cta {
  padding: 72px 0 80px;
  background: var(--color-ink);
  color: var(--color-canvas);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 60%;
  height: 100%;
  background: transparent;
  border-left: 1px solid rgba(246, 241, 231, 0.12);
  transform: skewX(-8deg);
  pointer-events: none;
}

.final-cta h2 { font-size: clamp(1.9rem, 7vw, 2.4rem); max-width: 16ch; }
.final-cta p { color: rgba(246, 241, 231, 0.78); font-size: 1.05rem; }
.final-cta .btn-primary { margin-top: 10px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 48px 0 40px;
  border-top: 1px solid var(--color-line);
}

.footer-logo { height: 24px; width: auto; margin-bottom: 18px; }

.footer-tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 14px;
}

.footer-legal {
  color: var(--color-ink-soft);
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.footer-copyright {
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  margin-bottom: 0;
}

/* ==========================================================================
   Reveal motion (progressive enhancement, respects reduced motion)
   ========================================================================== */
html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html.js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Breakpoints
   ========================================================================== */

/* Small phones fine-tuning (≤359px handled by fluid units above) */

@media (min-width: 540px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .hero-ctas { gap: 16px; }
}

@media (min-width: 768px) {
  :root { --gutter: 32px; }

  .hero { padding: 88px 0 96px; }
  .hero-inner {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 48px;
  }
  .hero-flow { max-width: 330px; justify-self: end; }
  .hero-title { font-size: clamp(2.6rem, 6vw, 3.4rem); }
  .hero-title { max-width: none; }

  .capabilities, .how-we-work, .about { padding: 96px 0; }

  .section-head {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
    align-items: end;
  }

  .cards-grid { grid-template-columns: repeat(4, 1fr); }
  .card-offset { transform: translateY(28px); }
  .card { padding: 36px 26px; }

  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(1) { border-right: 1px solid var(--color-line); }
  .step:nth-child(3) { border-right: 1px solid var(--color-line); }
  .step:nth-child(1), .step:nth-child(2) { border-top: 0; }
  .step { padding: 32px 28px; }

  .about-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 48px;
  }
  .about-rule { height: 100%; width: 3px; justify-self: end; }

  .final-cta-inner { max-width: 640px; }
}

@media (min-width: 1024px) {
  .header-inner { padding: 18px var(--gutter); }
  .brand-logo { height: 30px; }

  .nav-toggle { display: none; }

  .site-nav {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    background: none;
    border-bottom: 0;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: 36px;
  }
  .nav-list li { border-top: 0; }
  .nav-list a {
    padding: 6px 2px;
    font-size: 0.95rem;
    position: relative;
  }
  .nav-list a:not(.nav-cta)::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.2s var(--ease);
  }
  .nav-list a:not(.nav-cta):hover::after,
  .nav-list a:not(.nav-cta):focus-visible::after { width: 100%; }

  .nav-cta { margin-top: 0; padding: 10px 20px !important; }

  .card:nth-child(1) { border-right: 2px solid transparent; }
  .cards-grid { gap: 2px; }
}

@media (min-width: 1200px) {
  .hero-inner { gap: 64px; }
}