/* ==========================================================================
   바로자막 landing page
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ---- tokens -------------------------------------------------------- */

:root {
  --bg: #f8f7fb;
  --surface: #ffffff;
  --surface-2: #f1eef8;
  --text: #17131f;
  --text-muted: #5d5770;
  --border: #e4e0f0;
  --accent: #6a4fe0;
  --accent-strong: #5a3fd6;
  --accent-soft: #ede9fb;
  --spark: #e08a2b;
  --shadow: 0 20px 45px -25px rgba(38, 22, 90, 0.35);

  --hero-bg: #0f0c18;
  --hero-bg-2: #171025;
  --hero-text: #f4f2fb;
  --hero-text-muted: #b6adcf;
  --hero-border: rgba(255, 255, 255, 0.12);
  --hero-accent: #a78bfa;
  --hero-accent-strong: #8e78f5;

  --font-display: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1160px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #100d18;
    --surface: #1a1526;
    --surface-2: #221c33;
    --text: #f3f1fa;
    --text-muted: #b3abc9;
    --border: rgba(255, 255, 255, 0.12);
    --accent: #a78bfa;
    --accent-strong: #c4b2ff;
    --accent-soft: rgba(167, 139, 250, 0.16);
    --spark: #f0a94d;
    --shadow: 0 20px 45px -25px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme="dark"] {
  --bg: #100d18;
  --surface: #1a1526;
  --surface-2: #221c33;
  --text: #f3f1fa;
  --text-muted: #b3abc9;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #a78bfa;
  --accent-strong: #c4b2ff;
  --accent-soft: rgba(167, 139, 250, 0.16);
  --spark: #f0a94d;
  --shadow: 0 20px 45px -25px rgba(0, 0, 0, 0.6);
}

/* ---- layout helpers -------------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }
@media (max-width: 720px) { section { padding: 64px 0; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px 6px 10px;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--spark);
  box-shadow: 0 0 0 0 rgba(224, 138, 43, 0.5);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(224, 138, 43, 0.45); }
  50% { box-shadow: 0 0 0 6px rgba(224, 138, 43, 0); }
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0;
}

.section-head {
  max-width: 640px;
  margin: 0 0 48px;
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); }
.section-head p { color: var(--text-muted); margin-top: 14px; font-size: 1.02rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-primary {
  background: linear-gradient(180deg, #8e78f5, #7564e3);
  color: #ffffff;
  box-shadow: 0 14px 30px -12px rgba(117, 100, 227, 0.65);
}
.btn-primary:hover { box-shadow: 0 18px 34px -12px rgba(117, 100, 227, 0.8); }

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

.btn-ghost-hero {
  background: transparent;
  border-color: var(--hero-border);
  color: var(--hero-text);
}
.btn-ghost-hero:hover { border-color: var(--hero-accent); color: var(--hero-accent); }

/* ---- nav -------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--text);
}
.brand img { width: 30px; height: 30px; border-radius: 8px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.94rem;
  color: var(--text-muted);
}
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav .btn-primary { padding: 10px 18px; font-size: 0.9rem; }

.lang-picker { position: relative; display: inline-flex; }
.lang-picker::after {
  content: "";
  position: absolute;
  right: 13px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--text-muted);
  border-bottom: 1.5px solid var(--text-muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}
.lang-picker select {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  font-size: 0.88rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 32px 8px 14px;
  cursor: pointer;
}
.lang-picker select:hover { border-color: var(--accent); }
.lang-picker select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

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

@media (max-width: 760px) {
  .nav-links { display: none; }
}
@media (max-width: 520px) {
  .nav .btn-primary { display: none; }
}
.brand, .nav .btn-primary { white-space: nowrap; }

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

.hero {
  background:
    radial-gradient(900px 480px at 15% -10%, rgba(142, 120, 245, 0.35), transparent 60%),
    radial-gradient(700px 420px at 90% 0%, rgba(167, 139, 250, 0.22), transparent 55%),
    var(--hero-bg);
  color: var(--hero-text);
  padding: 88px 0 100px;
  overflow: hidden;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 940px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
}

.hero-eyebrow {
  border-color: var(--hero-border);
  background: rgba(167, 139, 250, 0.12);
}

.hero h1 {
  color: var(--hero-text);
  font-size: clamp(2rem, 4.4vw, 3.05rem);
  line-height: 1.22;
  margin: 20px 0 22px;
}
.hero h1 .accent { color: var(--hero-accent-strong); }

.hero p.lead {
  color: var(--hero-text-muted);
  font-size: 1.08rem;
  max-width: 46ch;
  margin: 0 0 32px;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }

.hero-note {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--hero-text-muted);
  font-size: 0.86rem;
}
.hero-note .stars { color: var(--spark); letter-spacing: 1px; }

/* phone mockup */
.hero-visual { position: relative; display: flex; flex-direction: column; align-items: center; }
.phone {
  position: relative;
  width: min(300px, 78vw);
  border-radius: 38px;
  padding: 12px;
  background: linear-gradient(160deg, #241c37, #140f20);
  border: 1px solid var(--hero-border);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255,255,255,0.02);
}
.phone img {
  width: 100%;
  border-radius: 26px;
  display: block;
}
.phone-caption {
  text-align: center;
  color: var(--hero-text-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  margin-top: 14px;
}

.floating-chip {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(26, 21, 41, 0.9);
  border: 1px solid var(--hero-border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--hero-text);
  box-shadow: 0 12px 30px -14px rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
}
.floating-chip.lang { top: 6%; left: -6%; }
.floating-chip.offline { bottom: 10%; right: -8%; }
.floating-chip .chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--spark); }
@media (max-width: 940px) {
  .floating-chip.lang { left: 2%; }
  .floating-chip.offline { right: 2%; }
}
@media (max-width: 600px) {
  .floating-chip { display: none; }
}

/* live caption demo line inside phone frame overlay */
.caption-demo {
  margin-top: 16px;
  background: rgba(0,0,0,0.55);
  border: 1px solid var(--hero-border);
  border-radius: 14px;
  padding: 14px 16px;
}
.caption-demo .src {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--hero-text-muted);
}
.caption-demo .out {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--hero-text);
  margin-top: 6px;
  min-height: 1.4em;
}
.caption-demo .out .cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--hero-accent);
  margin-left: 2px;
  vertical-align: -0.15em;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- trust strip ---------------------------------------------------- */

.trust {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.trust .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 720px) { .trust .wrap { grid-template-columns: 1fr; gap: 18px; } }

.trust-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.trust-item .num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--accent);
  white-space: nowrap;
}
.trust-item .label { color: var(--text-muted); font-size: 0.94rem; }

/* ---- features --------------------------------------------------------- */

.features .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: start;
  gap: 22px;
}
@media (max-width: 900px) { .features .wrap { grid-template-columns: 1fr; } }

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-card .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.2rem;
}
.feature-card h3 { font-size: 1.12rem; }
.feature-card p { color: var(--text-muted); font-size: 0.96rem; margin: 0; }
.feature-card .fine { color: var(--text-muted); font-size: 0.8rem; margin-top: -6px; }
.feature-card .thumb {
  margin-top: 4px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

/* ---- how it works ----------------------------------------------------- */

.steps { background: var(--surface-2); }
.steps .wrap.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 940px) { .steps .wrap.steps-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps .wrap.steps-grid { grid-template-columns: 1fr; } }

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 22px;
}
.step .n {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}
.step h3 { font-size: 1.02rem; margin-top: 10px; }
.step p { color: var(--text-muted); font-size: 0.92rem; margin: 8px 0 0; }

/* ---- screenshots ------------------------------------------------------ */

.shots .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
@media (max-width: 860px) {
  .shots .wrap {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 74%;
    overflow-x: auto;
    padding-bottom: 8px;
    scroll-snap-type: x mandatory;
  }
  .shots .shot { scroll-snap-align: start; }
}

.shot {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.shot img { border-radius: 12px; border: 1px solid var(--border); }
.shot .cap { margin-top: 14px; }
.shot .cap h3 { font-size: 1rem; }
.shot .cap p { color: var(--text-muted); font-size: 0.88rem; margin: 6px 0 0; }

.shot-note {
  color: var(--text-muted);
  font-size: 0.84rem;
  margin-top: 28px;
}

/* ---- screen text translation ------------------------------------------ */

.screentext .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 860px) { .screentext .wrap { grid-template-columns: 1fr; gap: 36px; } }

.badge-new {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 14px;
}
.screentext h2 { margin: 0; font-size: clamp(1.6rem, 3vw, 2.15rem); }
.screentext .lead-sub { color: var(--text-muted); margin: 14px 0 0; font-size: 1.02rem; }
.screentext-list { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.screentext-list li { border-left: 3px solid var(--accent); padding-left: 14px; }
.screentext-list strong { display: block; font-size: 0.98rem; }
.screentext-list span { color: var(--text-muted); font-size: 0.9rem; }
.screentext .fine { color: var(--text-muted); font-size: 0.82rem; margin: 22px 0 0; }

.screentext-visual {
  justify-self: center;
  max-width: 320px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 12px;
  box-shadow: var(--shadow);
}
.screentext-visual img { border-radius: 18px; }

.screentext .wrap.screentext-cases {
  grid-template-columns: 0.75fr 0.75fr 1.5fr;
  gap: 26px;
  align-items: start;
  margin-top: 64px;
}
@media (max-width: 1100px) {
  .screentext .wrap.screentext-cases { grid-template-columns: 1fr 1fr; }
  .screentext-cases .shot:last-child { grid-column: 1 / -1; }
}
@media (max-width: 860px) { .screentext .wrap.screentext-cases { grid-template-columns: 1fr; margin-top: 44px; } }

/* ---- privacy ------------------------------------------------------------ */

.privacy { background: var(--surface-2); }
.privacy .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 860px) { .privacy .wrap { grid-template-columns: 1fr; } }

.privacy-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.privacy-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.privacy-list .mark {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}
.privacy-list .body strong { display: block; font-size: 0.98rem; }
.privacy-list .body span { color: var(--text-muted); font-size: 0.9rem; }

.privacy-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 28px;
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
}
.privacy-link:hover { text-decoration: underline; }

/* ---- final cta ---------------------------------------------------------- */

.cta-band {
  background: var(--hero-bg);
  color: var(--hero-text);
  text-align: center;
  padding: 96px 0;
  background-image: radial-gradient(700px 380px at 50% 0%, rgba(142, 120, 245, 0.28), transparent 60%);
}
.cta-band h2 { color: var(--hero-text); font-size: clamp(1.7rem, 3.6vw, 2.4rem); max-width: 22ch; margin: 0 auto; }
.cta-band p { color: var(--hero-text-muted); margin: 18px auto 34px; max-width: 46ch; }
.cta-band .hero-ctas { justify-content: center; margin-bottom: 18px; }
.cta-band .hero-note { justify-content: center; }

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

footer.site {
  background: var(--hero-bg-2);
  color: var(--hero-text-muted);
  padding: 48px 0 36px;
  border-top: 1px solid var(--hero-border);
}
footer.site .wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}
.foot-brand { display: flex; align-items: center; gap: 10px; color: var(--hero-text); font-weight: 800; }
.foot-brand img { width: 26px; height: 26px; border-radius: 7px; }
.foot-tag { font-size: 0.86rem; margin: 10px 0 0; max-width: 32ch; }
.foot-links { display: flex; gap: 22px; font-size: 0.88rem; flex-wrap: wrap; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { color: var(--hero-text); }
.foot-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--hero-border);
  font-size: 0.78rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---- reveal on scroll ------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}