/* LingoSnap landing page styles (inspired by in-app "liquid glass" theme) */

:root {
  --bg: #020617;
  --bg-2: rgba(15, 23, 42, 0.95);

  --card-bg: rgba(15, 23, 42, 0.72);
  --card-bg-strong: rgba(15, 23, 42, 0.9);
  --card-border: rgba(148, 163, 184, 0.55);

  --text: #e5e7eb;
  --text-2: #94a3b8;
  --text-3: #9ca3af;

  --primary: #38bdf8;
  --primary-dim: rgba(56, 189, 248, 0.16);
  --primary-border: rgba(56, 189, 248, 0.7);

  --button: #4f46e5;
  --danger: #fb7185;

  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;

  --maxw: 1120px;
  --pad: 20px;
}

[data-theme='light'] {
  --bg: #f9fafb;
  --bg-2: #ffffff;

  --card-bg: rgba(255, 255, 255, 0.9);
  --card-bg-strong: rgba(255, 255, 255, 0.97);
  --card-border: rgba(209, 213, 219, 0.9);

  --text: #0f172a;
  --text-2: #6b7280;
  --text-3: #9ca3af;

  --primary: #0ea5e9;
  --primary-dim: rgba(219, 234, 254, 0.9);
  --primary-border: rgba(59, 130, 246, 0.7);

  --button: #4f46e5;
  --danger: #dc2626;

  --shadow: 0 18px 50px rgba(2, 6, 23, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  padding: 0;
  margin: 0;
}

body {
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Helvetica,
    Arial,
    'Apple Color Emoji',
    'Segoe UI Emoji';
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

/* Background blobs (liquid glass accent) */
.bg {
  position: relative;
  min-height: 100vh;
  /* Avoid breaking sticky/blur rendering on mobile browsers */
  overflow-x: hidden;
}
.bg::before,
.bg::after {
  content: '';
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 999px;
  filter: blur(0px);
  opacity: 0.95;
  pointer-events: none;
  z-index: 0;
}
.bg::before {
  top: -140px;
  left: -70px;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(56, 189, 248, 0.45),
    rgba(59, 130, 246, 0.15),
    transparent 70%
  );
}
.bg::after {
  bottom: -160px;
  right: -90px;
  background: radial-gradient(
    circle at 70% 70%,
    rgba(251, 113, 133, 0.35),
    rgba(251, 191, 36, 0.18),
    transparent 70%
  );
}

[data-theme='light'] .bg::before {
  background: radial-gradient(
    circle at 30% 30%,
    rgba(59, 130, 246, 0.18),
    rgba(96, 165, 250, 0.05),
    transparent 70%
  );
}
[data-theme='light'] .bg::after {
  background: radial-gradient(
    circle at 70% 70%,
    rgba(248, 113, 113, 0.18),
    rgba(251, 191, 36, 0.08),
    transparent 70%
  );
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  gap: 16px;
}

/* Sticky header */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  /* stretch to viewport edges while keeping wrap padding */
  margin: 0 calc(var(--pad) * -1);
  padding: 14px var(--pad);
  border-bottom: 1px solid
    color-mix(in srgb, var(--card-border), transparent 40%);
  /* fallback first, then enhanced */
  background: var(--bg-2);
  background: color-mix(in srgb, var(--bg), transparent 22%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 180px;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--button), var(--primary));
  box-shadow: 0 16px 40px rgba(14, 165, 233, 0.25);
}

.brandText {
  display: grid;
  gap: 2px;
}

.brandTitle {
  font-weight: 850;
  letter-spacing: -0.4px;
  font-size: 16px;
  line-height: 1.1;
}

.brandSub {
  font-size: 12px;
  color: var(--text-2);
  letter-spacing: 0.2px;
}

.navLinks {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 8px 12px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-size: 13px;
  color: var(--text-2);
}

.chip:hover {
  border-color: color-mix(
    in srgb,
    var(--primary-border),
    var(--card-border) 35%
  );
  color: var(--text);
}

.chipButton {
  cursor: pointer;
  user-select: none;
}

.hero {
  padding: 38px 0 24px;
  display: grid;
  gap: 18px;
}

.glass {
  border-radius: var(--radius-xl);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
}

.heroCard {
  padding: 26px 22px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.7px;
  text-transform: uppercase;
  font-size: 12px;
}

.title {
  margin: 10px 0 10px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.9px;
  font-weight: 900;
}

.subtitle {
  margin: 0;
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.7;
}

.ctaRow {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 750;
  letter-spacing: 0.2px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}

.btnPrimary {
  background: var(--button);
  color: #fff;
  box-shadow: 0 16px 50px rgba(79, 70, 229, 0.35);
}

.btnPrimary:hover {
  filter: brightness(1.04);
}

.btnGhost {
  background: transparent;
  border-color: var(--card-border);
  color: var(--text);
}

.btnGhost:hover {
  border-color: var(--primary-border);
  background: color-mix(in srgb, var(--primary-dim), transparent 55%);
}

.noteRow {
  margin-top: 14px;
  display: grid;
  gap: 8px;
  color: var(--text-3);
  font-size: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
  padding: 18px 0 32px;
}

.card {
  grid-column: span 6;
  padding: 18px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.card h3 {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: -0.2px;
}

.card p {
  margin: 0;
  color: var(--text-2);
  font-size: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: var(--primary);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.section {
  padding: 22px 0;
}

/* Anchor offset for sticky header */
.section,
.policy {
  scroll-margin-top: 92px;
}

.sectionTitle {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.3px;
}

.sectionLead {
  margin: 0 0 18px;
  color: var(--text-2);
  font-size: 14px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.step {
  grid-column: span 4;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.stepNum {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  background: color-mix(in srgb, var(--primary-dim), transparent 35%);
  border: 1px solid var(--primary-border);
  color: var(--text);
  margin-bottom: 10px;
}

.step h3 {
  margin: 0 0 6px;
  font-size: 16px;
}
.step p {
  margin: 0;
  color: var(--text-2);
  font-size: 14px;
}

.faq {
  display: grid;
  gap: 12px;
}

.qa {
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.qa summary {
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.qa summary::-webkit-details-marker {
  display: none;
}

.qa p {
  margin: 10px 0 0;
  color: var(--text-2);
  font-size: 14px;
}

.footer {
  padding: 26px 0 40px;
  border-top: 1px solid color-mix(in srgb, var(--card-border), transparent 40%);
  margin-top: 16px;
}

.footerRow {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  flex-wrap: wrap;
}

.footerSmall {
  color: var(--text-3);
  font-size: 12px;
}

.footerLinks {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.mutedLink {
  color: var(--text-2);
  font-size: 13px;
}
.mutedLink:hover {
  color: var(--text);
}

/* Contact form */
.contactSection {
  padding: 20px 0 36px;
  max-width: 560px;
}

.contactSection h1 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.formCard {
  padding: 24px 22px;
  margin-top: 18px;
}

.formGroup {
  margin-bottom: 18px;
}

.formLabel {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-2);
  margin-bottom: 6px;
  letter-spacing: 0.2px;
}

.formRequired {
  color: var(--danger);
}

.formInput,
.formTextarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background: var(--card-bg-strong);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.15s ease;
}

.formInput::placeholder,
.formTextarea::placeholder {
  color: var(--text-3);
}

.formInput:focus,
.formTextarea:focus {
  outline: none;
  border-color: var(--primary-border);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.formTextarea {
  resize: vertical;
  min-height: 120px;
}

.formActions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.formSuccess {
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--primary-border);
  background: var(--primary-dim);
  color: var(--text);
}

.formSuccess p {
  margin: 0 0 16px;
  font-size: 15px;
  color: var(--text-2);
}

/* Privacy page typography */
.policy {
  padding: 20px 0 36px;
}

.policy h1 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.policy .meta {
  color: var(--text-3);
  font-size: 12px;
  margin: 0 0 18px;
}

.policy .intro {
  color: var(--text-2);
  margin: 0 0 18px;
}

.policy .sectionCard {
  padding: 18px;
  margin-bottom: 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.policy h2 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 900;
  letter-spacing: -0.2px;
  color: var(--primary);
}

.policy p,
.policy li {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
}

.policy ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

@media (max-width: 880px) {
  .card {
    grid-column: span 12;
  }
  .step {
    grid-column: span 12;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}