/* =========================================================
   Manga Translator Z — Landing page
   Palette matches the Chrome extension popup.
   ========================================================= */

:root {
  --bg:        #0e0e1a;
  --bg-2:      #131322;
  --surface:   #1a1a2e;
  --surface-2: #16162a;
  --border:    #2a2a4a;
  --border-2:  #353560;

  --purple:        #8b5cf6;
  --purple-hot:    #a855f7;
  --purple-deep:   #6c5ce7;
  --purple-glow:   rgba(139, 92, 246, 0.45);
  --grad-purple:   linear-gradient(135deg, #6c5ce7, #a855f7);

  --text:      #ffffff;
  --text-dim:  #c4c4dc;
  --text-mute: #8484a8;

  --ff-display: "Archivo Black", "Bebas Neue", Impact, sans-serif;
  --ff-body:    "Inter", -apple-system, "Segoe UI", Arial, sans-serif;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 20px;

  --max-w: 1200px;
}

/* ---------- reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* ---------- page frame ---------- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 70% 45% at 50% -10%, rgba(139,92,246,0.22), transparent 60%),
    radial-gradient(ellipse 60% 35% at 90% 0%, rgba(168,85,247,0.10), transparent 60%),
    repeating-linear-gradient(
      45deg,
      rgba(255,255,255,0.012) 0px,
      rgba(255,255,255,0.012) 1px,
      transparent 1px,
      transparent 6px
    );
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- typography ---------- */
.display,
.display-sm,
.display-xl {
  font-family: var(--ff-display);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 0;
}
.display    { font-size: clamp(54px, 7.5vw, 96px); }
.display-sm { font-size: clamp(40px, 5.4vw, 66px); }
.display-xl { font-size: clamp(58px, 9vw, 112px); }

h3 {
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 20px;
  margin: 0 0 10px 0;
  color: var(--text);
  letter-spacing: -0.005em;
}

p  { margin: 0; color: var(--text-dim); }
.lede { font-size: 20px; line-height: 1.55; color: var(--text-dim); max-width: 500px; margin-top: 26px; }
.body { font-size: 18px; line-height: 1.6; color: var(--text-dim); max-width: 500px; }

.eyebrow {
  background: var(--grad-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow.center { text-align: center; }

.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  margin-bottom: 26px;
  background: rgba(139, 92, 246, 0.10);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 999px;
}
.eyebrow-chevron {
  color: var(--purple-hot);
  font-weight: 700;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  line-height: 1;
  transition: transform 120ms ease, box-shadow 180ms ease, background 160ms ease, filter 160ms ease;
  white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: 14px; }

.btn-primary {
  background: var(--grad-purple);
  color: #fff;
  box-shadow: 0 12px 28px -10px var(--purple-glow);
}
.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 18px 36px -10px var(--purple-glow);
}

.btn-ghost {
  color: var(--text);
  background: transparent;
  padding: 14px 8px;
  font-weight: 600;
}
.btn-ghost:hover { color: var(--purple-hot); }

.btn-glow {
  padding: 18px 32px;
  font-size: 18px;
  animation: btn-pulse 2.8s ease-in-out infinite;
  box-shadow: 0 0 0 0 var(--purple-glow);
}
@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 0 30px -4px var(--purple-glow), 0 12px 28px -10px var(--purple-glow); }
  50%      { box-shadow: 0 0 64px  2px var(--purple-glow), 0 12px 28px -10px var(--purple-glow); }
}

/* ---------- nav ---------- */
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(14, 14, 26, 0.78);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.005em;
  line-height: 1;
}
.brand-img {
  width: 40px;
  height: 40px;
  display: block;
  filter: drop-shadow(0 0 14px rgba(168, 85, 247, 0.45));
  border-radius: 10px;
}
.brand-z {
  font-family: var(--ff-display);
  font-weight: 900;
  font-size: 34px;
  line-height: 0.85;
  letter-spacing: -0.02em;
  background: var(--grad-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-left: 4px;
  position: relative;
  top: 3px;
  text-shadow: 0 0 22px rgba(168, 85, 247, 0.35);
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 500;
}
.nav-links a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero {
  padding: 72px 0 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  min-height: 64vh;
  padding-bottom: 56px;
}

.hero-text { min-width: 0; }
.hero-text .display { color: var(--text); }

/* Lock the rotator width so the layout never jumps as text changes. */
.rotator {
  display: inline-block;
  position: relative;
  min-height: 1.05em;
  /* Wide enough for the longest word ("LANGUAGE." / "SPRACHE." / "言語."). */
  min-width: 6.2ch;
}
.rotator-word {
  display: inline-block;
  background: var(--grad-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity 200ms ease, transform 200ms ease;
}
.is-leaving  { opacity: 0; transform: translateY(-8px); }
.is-entering { opacity: 0; transform: translateY( 8px); }

.cta-row {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.social-proof {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text-dim);
  font-size: 15px;
  margin-top: 32px;
}
.avatars {
  display: inline-flex;
  align-items: center;
}
.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--bg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  background: var(--surface);
}
.avatar + .avatar { margin-left: -10px; }
.social-proof strong { color: var(--text); font-weight: 700; }

/* ---------- hero mockup (real manga panel) ---------- */
.hero-mockup {
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 580px;
}
.manga-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  overflow: hidden;
  background: #0a0a14;
  border: 1px solid var(--border);
  box-shadow:
    0 50px 100px -30px rgba(0,0,0,0.85),
    0 0 0 1px rgba(255,255,255,0.03),
    0 0 80px -20px var(--purple-glow);
}
.manga-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05);
}

.bubble-overlay {
  position: absolute;
  background: #fff;
  color: #111;
  padding: 10px 16px;
  font-family: 'Bebas Neue', 'Archivo Black', Impact, sans-serif;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.04em;
  border: 2px solid #111;
  border-radius: 50% / 38%;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.95);
  white-space: nowrap;
  transition: opacity 200ms ease, transform 200ms ease;
}
.bubble-overlay::after {
  content: "";
  position: absolute;
  width: 14px; height: 18px;
  background: #fff;
  border-right: 2px solid #111;
  border-bottom: 2px solid #111;
  border-radius: 0 0 50% 50%;
}
.bubble-1 { top: 10%;  left: 8%; }
.bubble-1::after { left: 24%; bottom: -14px; transform: rotate(-10deg); }
.bubble-2 { top: 42%;  right: 8%; transform: rotate(2deg); }
.bubble-2::after { left: 30%; bottom: -14px; transform: rotate(-8deg); }
.bubble-3 { bottom: 14%; left: 18%; }
.bubble-3::after { right: 18%; bottom: -14px; transform: rotate(10deg); }

.sticker {
  position: absolute;
  top: -14px;
  right: -10px;
  background: linear-gradient(135deg, #ffd93d, #ffb547);
  color: #1a1a1a;
  font-family: var(--ff-display);
  font-weight: 900;
  letter-spacing: 0.04em;
  font-size: 15px;
  padding: 10px 16px;
  border: 2px solid #1a1a1a;
  border-radius: 6px;
  transform: rotate(6deg);
  box-shadow: 5px 5px 0 rgba(0,0,0,0.9);
  z-index: 3;
}

/* ---------- marquee ----------
   Two identical <ul>'s sit side-by-side inside .marquee. Both animate left
   together by exactly one track width. When the first scrolls fully off,
   the second is already in its starting position — perfectly circular,
   no gaps on any viewport width. */
.marquee {
  display: flex;
  gap: 56px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  padding: 22px 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  background: rgba(255,255,255,0.015);
}
.marquee-track {
  display: flex;
  gap: 56px;
  flex-shrink: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
  color: var(--text-mute);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.18em;
  animation: marquee 42s linear infinite;
}
.marquee-track li { flex-shrink: 0; }
@keyframes marquee {
  from { transform: translateX(0); }
  /* Shift one full track + the gap that separates the twins. */
  to   { transform: translateX(calc(-100% - 56px)); }
}

/* ---------- sections ---------- */
.section {
  padding: 110px 0;
}
.section .eyebrow { margin-bottom: 14px; }
.section h2.center { text-align: center; }
.section h2.center + .features-grid,
.section h2.center + .faq { margin-top: 56px; }

/* how it works */
.steps {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 180ms ease, transform 180ms ease;
}
.card:hover {
  border-color: var(--border-2);
  transform: translateY(-2px);
}

.step { min-height: 200px; }
.step-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 26px;
}
.step-num {
  font-family: var(--ff-display);
  background: var(--grad-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 42px;
  line-height: 1;
  letter-spacing: -0.01em;
}
.chip {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.30);
  color: var(--text-dim);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
}
.step p { font-size: 16px; }
kbd {
  display: inline-block;
  background: #20203a;
  border: 1px solid var(--border-2);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 9px;
  font-family: inherit;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
}

/* before / after */
.compare-grid {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 72px;
  align-items: center;
}
.compare-text .body { margin-top: 24px; }

.compare {
  --pos: 50%;
  position: relative;
  aspect-ratio: 16 / 10;
  max-width: 680px;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  user-select: none;
  touch-action: none;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.7);
}
.compare-bg {
  position: absolute; inset: 0;
  background-image: url('assets/img/compare-manga.png');
  background-size: cover;
  background-position: center;
}

/* Two full-size layers stacked. AFTER is drawn on top and clipped by --pos so
   the EN bubble fully covers its JP twin (identical fixed box → no peek-out). */
.compare-layer { position: absolute; inset: 0; }
.compare-after {
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
  z-index: 2;
}

.bubble {
  position: absolute;
  width: 38%;
  height: 64px;
  background: #fff;
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Bebas Neue', 'Archivo Black', Impact, sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.04em;
  border: 2px solid #111;
  border-radius: 44% / 36%;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.95);
  white-space: nowrap;
}
.bubble::after {
  content: "";
  position: absolute;
  width: 14px; height: 18px;
  background: #fff;
  border-right: 2px solid #111;
  border-bottom: 2px solid #111;
  border-radius: 0 0 50% 50%;
}
.bubble-tl { top: 8%;  left: 6%; }
.bubble-tl::after { left: 22%; bottom: -14px; transform: rotate(-10deg); }
.bubble-br { bottom: 12%; right: 6%; }
.bubble-br::after { right: 22%; bottom: -14px; transform: rotate(10deg); }

.compare-handle {
  position: absolute;
  top: 50%;
  left: var(--pos);
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: #fff;
  border: 2px solid #111;
  color: #111;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
  cursor: ew-resize;
}
.compare::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: var(--pos);
  width: 2px;
  background: #fff;
  z-index: 1;
  transform: translateX(-1px);
  box-shadow: 0 0 12px rgba(255,255,255,0.5);
}

/* features */
.features-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-icon {
  width: 32px; height: 32px;
  color: var(--purple-hot);
  margin-bottom: 22px;
}
.feature h3 { margin-bottom: 10px; }
.feature p { font-size: 16px; }

/* faq */
.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
  text-align: center;
}
.faq {
  margin-top: 52px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 180ms ease;
}
.faq-item:hover { border-color: var(--border-2); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  font-weight: 600;
  font-size: 17px;
  color: var(--text);
}
.faq-toggle {
  position: relative;
  width: 16px; height: 16px;
  flex-shrink: 0;
  color: var(--purple-hot);
}
.faq-toggle::before,
.faq-toggle::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 220ms ease;
}
.faq-toggle::before {
  top: 50%; left: 0;
  width: 100%; height: 2px;
  transform: translateY(-1px);
}
.faq-toggle::after {
  top: 0; left: 50%;
  width: 2px; height: 100%;
  transform: translateX(-1px);
}
.faq-item[open] .faq-toggle::after {
  transform: translateX(-1px) rotate(90deg);
}
.faq-body {
  padding: 0 26px 24px 26px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.65;
}

/* final cta */
.cta-final {
  position: relative;
  padding: 130px 0 150px;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(168,85,247,0.28), transparent 60%),
    radial-gradient(ellipse 40% 60% at 30% 100%, rgba(108,92,231,0.20), transparent 60%),
    repeating-linear-gradient(
      -45deg,
      rgba(255,255,255,0.02) 0,
      rgba(255,255,255,0.02) 1px,
      transparent 1px,
      transparent 8px
    ),
    var(--bg-2);
}
.cta-inner { text-align: center; }
.cta-final .accent {
  background: var(--grad-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cta-final .body { margin: 26px auto 36px; font-size: 19px; }

/* footer */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-mute);
  font-size: 14px;
}
.footer-right a {
  margin-left: 24px;
  color: var(--text-mute);
  transition: color 180ms ease;
}
.footer-right a:hover { color: var(--text); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; gap: 64px; min-height: auto; padding: 48px 0 0; }
  .hero-mockup { justify-self: start; max-width: 600px; }
  .steps, .features-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-grid { grid-template-columns: 1fr; gap: 44px; }
  .compare { max-width: 100%; }
}
@media (max-width: 700px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .nav { height: 64px; }
  .brand { font-size: 16px; gap: 10px; }
  .brand-img { width: 32px; height: 32px; }
  .brand-z { font-size: 26px; top: 2px; }
  .section { padding: 80px 0; }
  .steps, .features-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; }
  .display { font-size: 46px; }
  .display-sm { font-size: 36px; }
  .display-xl { font-size: 50px; }
  .lede { font-size: 17px; }
  .body { font-size: 16.5px; }
  h3 { font-size: 18px; }
  .footer-inner { flex-direction: column; gap: 10px; text-align: center; }
  .footer-right a { margin: 0 12px; }
  .bubble-overlay { font-size: 14px; padding: 7px 12px; }
  .bubble { font-size: 16px; padding: 10px 12px; }
  .bubble-pair { width: 44%; }
}

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