/* =============================================================
   LinguaLoop — Landing page
   Dark + coral brand system (matches in-app UI)
   ============================================================= */

:root {
  /* surface */
  --bg-0: #07070a;
  --bg-1: #0d0d12;
  --bg-2: #14141c;
  --bg-3: #1c1c26;

  /* ink */
  --ink: #ffffff;
  --ink-dim: rgba(255, 255, 255, 0.68);
  --ink-soft: rgba(255, 255, 255, 0.45);
  --ink-faint: rgba(255, 255, 255, 0.28);

  /* brand coral */
  --coral: #ec5160;
  --coral-bright: #ff6b7c;
  --coral-deep: #b73340;
  --coral-glow: rgba(236, 81, 96, 0.45);
  --coral-faint: rgba(236, 81, 96, 0.10);

  /* support */
  --green: #4ade80;
  --amber: #fbbf24;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);

  /* shadows */
  --sh-card: 0 30px 60px -30px rgba(0,0,0,0.7), 0 1px 0 rgba(255,255,255,0.04) inset;
  --sh-coral: 0 20px 60px -10px var(--coral-glow);
  --sh-deep: 0 60px 120px -40px rgba(0,0,0,0.9);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg-0);
  color: var(--ink);
  font-family: 'Geist', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
  line-height: 1.55;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* =============================================================
   LAYOUT
   ============================================================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

section { position: relative; }

/* =============================================================
   TYPOGRAPHY
   ============================================================= */
.display, h1, h2, h3, h4 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(48px, 7vw, 88px); letter-spacing: -0.035em; line-height: 1.0; }
h2 { font-size: clamp(36px, 4.5vw, 60px); letter-spacing: -0.028em; line-height: 1.05; }
h3 { font-size: clamp(22px, 2.2vw, 28px); letter-spacing: -0.018em; line-height: 1.2; }
h4 { font-size: 18px; letter-spacing: -0.012em; line-height: 1.3; }

p { margin: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Geist', sans-serif;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 8px 14px;
  background: rgba(236, 81, 96, 0.08);
  border: 1px solid rgba(236, 81, 96, 0.18);
  border-radius: 999px;
  white-space: nowrap;
}
.eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 12px var(--coral);
}

.lede {
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--ink-dim);
  line-height: 1.55;
  max-width: 60ch;
  text-wrap: pretty;
}

.grad-coral {
  background: linear-gradient(180deg, var(--coral-bright) 0%, var(--coral) 70%, var(--coral-deep) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.grad-white {
  background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,0.6) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

/* =============================================================
   BUTTONS
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-family: 'Geist', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(180deg, var(--coral-bright) 0%, var(--coral) 60%, var(--coral-deep) 100%);
  color: #fff;
  box-shadow:
    0 12px 28px -8px var(--coral-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
}
.btn-primary:hover {
  box-shadow:
    0 18px 40px -8px var(--coral-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
}
.btn-primary .ic {
  width: 22px; height: 22px;
  display: grid; place-items: center;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-strong);
  color: var(--ink);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-lg { padding: 18px 30px; font-size: 16px; }
.btn-ghost {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--ink-dim);
  background: transparent;
}
.btn-ghost:hover { color: var(--ink); }

/* App store badge "Download on the App Store" inspired button */
.btn-appstore {
  background: linear-gradient(180deg, var(--coral-bright) 0%, var(--coral) 60%, var(--coral-deep) 100%);
  color: #fff;
  padding: 14px 22px 14px 20px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  box-shadow:
    0 12px 28px -8px var(--coral-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-appstore .apple-mark {
  width: 28px; height: 28px;
  display: grid; place-items: center;
}
.btn-appstore .ttl { display: flex; flex-direction: column; line-height: 1.1; align-items: flex-start; }
.btn-appstore .ttl .sup { font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0.85; font-weight: 500; }
.btn-appstore .ttl .main { font-family: 'Space Grotesk', sans-serif; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }

/* =============================================================
   NAV
   ============================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 0;
  background: rgba(7, 7, 10, 0.7);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav.scrolled {
  border-bottom-color: var(--line);
  background: rgba(7, 7, 10, 0.85);
}
.nav .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.brand .mark {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--coral-bright), var(--coral-deep));
  display: grid; place-items: center;
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 17px;
  box-shadow: 0 4px 14px var(--coral-glow), inset 0 1px 0 rgba(255,255,255,0.3);
}
.brand .mark-img {
  width: 40px; height: 40px;
  display: block;
  filter: drop-shadow(0 4px 14px var(--coral-glow));
  border-radius: 8px;
}
.footer .brand .mark-img {
  width: 44px; height: 44px;
}
.brand .word .lp { color: var(--coral); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-dim);
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--ink); background: rgba(255,255,255,0.04); }
.nav-cta {
  padding: 10px 18px;
  font-size: 14px;
}
.nav-cta-mobile { display: none; }

@media (max-width: 1080px) {
  .nav-links a:nth-of-type(n+6) { display: none; }
}
@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .nav-cta-mobile { display: inline-flex; padding: 8px 16px; font-size: 13px; }
}

/* =============================================================
   HERO
   ============================================================= */
.hero {
  position: relative;
  padding: 90px 0 110px;
  overflow: visible;
  isolation: isolate;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero { padding: 60px 0 80px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
}

.hero-text { display: flex; flex-direction: column; gap: 28px; }
.hero h1 { margin-top: 8px; }
.hero h1 .accent { color: var(--coral); }
.hero .lede { font-size: clamp(17px, 1.5vw, 21px); }

.hero-cta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-microproof {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 6px;
}
.hero-microproof .item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-microproof .item svg {
  color: var(--green);
  flex-shrink: 0;
}

/* Hero atmosphere */
.hero::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 0;
  background:
    radial-gradient(50% 40% at 70% 30%, rgba(236, 81, 96, 0.18), transparent 70%),
    radial-gradient(40% 35% at 30% 80%, rgba(236, 81, 96, 0.10), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
  mask-image: radial-gradient(80% 70% at 50% 40%, #000 30%, transparent 90%);
  -webkit-mask-image: radial-gradient(80% 70% at 50% 40%, #000 30%, transparent 90%);
  opacity: 0.6;
  pointer-events: none;
}

/* Hero phone stage */
.hero-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 600px;
  overflow: visible;
}
@media (max-width: 980px) {
  .hero-stage { min-height: 540px; }
}
.hero-stage .ll-iphone { --pw: 300px; }

/* =============================================================
   iPHONE MOCKUP (reusable, scaled via --pw)
   ============================================================= */
.ll-iphone {
  --pw: 320px;
  width: var(--pw);
  height: calc(var(--pw) * 2.165);
  position: relative;
  border-radius: calc(var(--pw) * 0.135);
  background: linear-gradient(135deg, #1f1820 0%, #07050a 35%, #15101a 70%, #07050a 100%);
  padding: calc(var(--pw) * 0.018);
  box-shadow:
    0 60px 120px -30px rgba(0,0,0,0.85),
    0 30px 80px -20px var(--coral-glow),
    inset 0 0 0 2px rgba(255,255,255,0.08),
    inset 0 0 0 4px rgba(0,0,0,0.7);
}
.ll-iphone::before {
  content: ""; position: absolute; inset: 1px;
  border-radius: inherit; pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 200, 200, 0.18) 0%, transparent 18%, transparent 82%, rgba(255, 150, 160, 0.12) 100%);
  mix-blend-mode: screen;
}
.ll-iphone .screen {
  width: 100%; height: 100%;
  border-radius: calc(var(--pw) * 0.115);
  overflow: hidden;
  position: relative;
  background: #000;
  box-shadow: inset 0 0 0 1.5px rgba(0,0,0,0.9);
}
.ll-iphone .screen img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
}
.ll-iphone .island {
  position: absolute;
  top: calc(var(--pw) * 0.034);
  left: 50%;
  transform: translateX(-50%);
  width: calc(var(--pw) * 0.30);
  height: calc(var(--pw) * 0.072);
  background: #000;
  border-radius: 999px;
  z-index: 3;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
}
.ll-iphone .screen::after {
  content: ""; position: absolute; inset: 0;
  z-index: 2; pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255,200,200,0.10) 0%, transparent 22%, transparent 78%, rgba(255,180,180,0.08) 100%);
  mix-blend-mode: screen;
}

.hero-stage .ph-halo {
  position: absolute; inset: -10%;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--coral-glow), transparent 65%);
  filter: blur(50px);
  z-index: -1;
}

/* Floating chips around hero phone */
.float-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03));
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 40px -10px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.18);
  color: var(--ink);
  font-family: 'Geist', sans-serif;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: -0.005em;
  white-space: nowrap;
  z-index: 4;
}
.float-chip .dot {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--coral-bright), var(--coral));
  box-shadow: 0 0 14px var(--coral-glow), inset 0 1px 0 rgba(255,255,255,0.3);
  flex-shrink: 0;
}
.float-chip .dot svg { width: 12px; height: 12px; color: #fff; }

.hero-stage .fc-1 { top: 8%; left: -10%; transform: rotate(-4deg); }
.hero-stage .fc-2 { top: 30%; right: -8%; transform: rotate(3deg); }
.hero-stage .fc-3 { bottom: 18%; left: -6%; transform: rotate(-2deg); }
.hero-stage .fc-4 { bottom: 4%; right: 0%; transform: rotate(4deg); }

@media (max-width: 980px) {
  .hero-stage .fc-1 { top: 4%; left: 0; }
  .hero-stage .fc-2 { top: 26%; right: 0; }
  .hero-stage .fc-3 { bottom: 14%; left: 0; }
  .hero-stage .fc-4 { bottom: 0%; right: 4%; }
}
@media (max-width: 560px) {
  .hero-stage .float-chip { font-size: 12px; padding: 8px 12px 8px 10px; }
  .hero-stage .float-chip .dot { width: 18px; height: 18px; }
  .hero-stage .float-chip .dot svg { width: 10px; height: 10px; }
}

/* =============================================================
   TRUST STRIP
   ============================================================= */
.trust {
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-1);
}
.trust .row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
@media (max-width: 720px) {
  .trust .row { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}
.trust .stat .num {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: clamp(28px, 3vw, 40px);
  color: var(--ink);
  letter-spacing: -0.025em;
  line-height: 1;
}
.trust .stat .num .accent { color: var(--coral); }
.trust .stat .label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

/* =============================================================
   SECTION HEAD (shared)
   ============================================================= */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head .eyebrow { margin-bottom: 20px; }
.section-head h2 { margin-bottom: 18px; }
.section-head .lede { margin: 0 auto; }

/* =============================================================
   LOOP (Como funciona)
   ============================================================= */
.loop {
  padding: 110px 0 90px;
}

.loop-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
}
@media (max-width: 880px) {
  .loop-steps { grid-template-columns: 1fr; gap: 18px; }
}

.loop-step {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.25s, transform 0.25s;
}
.loop-step:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.loop-step .num {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--coral);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.loop-step .num::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--coral);
}
.loop-step h3 { color: var(--ink); }
.loop-step p { color: var(--ink-dim); font-size: 15px; }
.loop-step .icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--coral-faint);
  border: 1px solid rgba(236,81,96,0.18);
  color: var(--coral);
  margin-bottom: 4px;
}

/* =============================================================
   FEATURES — modes grid
   ============================================================= */
.features {
  padding: 90px 0 100px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* Big feature row (hero feature with screen) */
.feat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 40px 0;
}
.feat-row.reverse { direction: rtl; }
.feat-row.reverse > * { direction: ltr; }
@media (max-width: 880px) {
  .feat-row { grid-template-columns: 1fr; gap: 40px; }
  .feat-row.reverse { direction: ltr; }
}
.feat-copy {
  display: flex; flex-direction: column;
  gap: 18px;
}
.feat-copy .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 999px;
  background: var(--coral-faint);
  color: var(--coral);
  border: 1px solid rgba(236,81,96,0.22);
  align-self: flex-start;
  white-space: nowrap;
}
.feat-copy .tag.tag-pro {
  background: rgba(74, 222, 128, 0.08);
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.22);
}
.feat-copy h3 {
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.025em;
}
.feat-copy .pitch { color: var(--ink-dim); font-size: 17px; }
.feat-bullets {
  list-style: none;
  padding: 0; margin: 8px 0 0;
  display: flex; flex-direction: column;
  gap: 10px;
}
.feat-bullets li {
  display: flex; align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--ink);
}
.feat-bullets li svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--coral);
}
.feat-bullets li b { color: var(--ink); font-weight: 600; }
.feat-bullets li span { color: var(--ink-dim); }

.feat-phone-wrap {
  display: grid; place-items: center;
  position: relative;
  min-height: 540px;
}
.feat-phone-wrap .ll-iphone { --pw: 280px; }
.feat-phone-wrap .ph-halo {
  position: absolute; inset: -10%;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--coral-glow), transparent 65%);
  filter: blur(60px);
  z-index: -1;
}

/* Small modes grid (remaining modes as cards) */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 64px;
}
@media (max-width: 880px) {
  .modes-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .modes-grid { grid-template-columns: 1fr; }
}
.mode-card {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 22px 26px;
  display: flex; flex-direction: column;
  gap: 12px;
  transition: border-color 0.25s, transform 0.25s;
}
.mode-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.mode-card .icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--coral-faint);
  border: 1px solid rgba(236,81,96,0.18);
  color: var(--coral);
}
.mode-card h4 { color: var(--ink); }
.mode-card p { font-size: 14px; color: var(--ink-dim); line-height: 1.5; }
.mode-card .badge {
  position: absolute; top: 18px; right: 18px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--coral-bright), var(--coral-deep));
  color: #fff;
  text-transform: uppercase;
  box-shadow: 0 4px 12px var(--coral-glow);
}
.mode-card .badge.free {
  background: rgba(74, 222, 128, 0.12);
  color: var(--green);
  box-shadow: none;
  border: 1px solid rgba(74, 222, 128, 0.25);
}

/* =============================================================
   DASHBOARD / SCIENCE — Proficiency
   ============================================================= */
.science {
  padding: 110px 0;
  overflow: hidden;
}
.science .container { position: relative; z-index: 2; }
.science::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  background: radial-gradient(50% 50% at 50% 40%, rgba(236, 81, 96, 0.08), transparent 70%);
  pointer-events: none;
}
.science-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 880px) {
  .science-grid { grid-template-columns: 1fr; gap: 48px; }
}

/* Forgetting curve infographic */
.curve-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--sh-card);
}
.curve-card .head {
  display: flex; align-items: center; justify-content: space-between;
}
.curve-card .head .ttl {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.curve-card .head .ttl-sub { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.curve-card .head .legend {
  display: flex; align-items: center; gap: 14px;
  font-size: 11px; color: var(--ink-soft);
}
.curve-card .head .lg-dot {
  display: inline-flex; align-items: center; gap: 6px;
}
.curve-card .head .lg-dot::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--coral);
}
.curve-card .head .lg-dot.gray::before { background: var(--ink-faint); }

.curve-svg { width: 100%; height: 200px; }

.curve-foot {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.curve-foot .col {
  display: flex; flex-direction: column; gap: 4px;
}
.curve-foot .v {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 17px;
  color: var(--coral);
  letter-spacing: -0.01em;
}
.curve-foot .l { font-size: 11px; color: var(--ink-soft); letter-spacing: 0.04em; text-transform: uppercase; }

/* Science copy */
.science-copy h2 { margin-bottom: 20px; }
.science-copy .lede { margin-bottom: 24px; }
.science-points {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column;
  gap: 14px;
}
.science-points li {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 16px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.science-points li .ic {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--coral-faint);
  border: 1px solid rgba(236,81,96,0.18);
  color: var(--coral);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.science-points li .body { display: flex; flex-direction: column; gap: 4px; }
.science-points li b { font-size: 15px; color: var(--ink); font-weight: 600; }
.science-points li span { font-size: 14px; color: var(--ink-dim); line-height: 1.5; }

/* =============================================================
   COMPARE / DIFFERENTIATION
   ============================================================= */
.compare {
  padding: 90px 0 100px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.compare-table {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}
.compare-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  align-items: stretch;
}
.compare-row + .compare-row { border-top: 1px solid var(--line); }
.compare-cell {
  padding: 18px 22px;
  font-size: 14px;
  display: flex; align-items: center; gap: 10px;
  color: var(--ink-dim);
}
.compare-cell.feat { color: var(--ink); font-weight: 500; }
.compare-cell.lingualoop {
  background: rgba(236, 81, 96, 0.05);
  color: var(--ink);
}
.compare-cell.lingualoop b { color: var(--coral); font-weight: 600; }
.compare-cell .yes { color: var(--green); flex-shrink: 0; }
.compare-cell .no { color: var(--ink-faint); flex-shrink: 0; }
.compare-row.head .compare-cell {
  padding: 18px 22px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.005em;
  background: rgba(255,255,255,0.02);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--ink-soft);
}
.compare-row.head .compare-cell.lingualoop {
  background: rgba(236, 81, 96, 0.10);
  color: var(--coral);
}
@media (max-width: 720px) {
  .compare-cell { padding: 14px 16px; font-size: 13px; }
}

/* =============================================================
   PRICING
   ============================================================= */
.pricing { padding: 110px 0 100px; }
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .pricing-grid { grid-template-columns: 1fr; }
}
.price-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 36px 32px;
  display: flex; flex-direction: column;
  gap: 22px;
  position: relative;
}
.price-card.premium {
  border-color: rgba(236, 81, 96, 0.35);
  background: linear-gradient(180deg, rgba(236, 81, 96, 0.07) 0%, var(--bg-2) 40%);
  box-shadow: 0 30px 80px -30px var(--coral-glow);
}
.price-card.premium::before {
  content: "Recomendado";
  position: absolute;
  top: -12px; right: 24px;
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(180deg, var(--coral-bright), var(--coral-deep));
  color: #fff;
  border-radius: 999px;
  box-shadow: 0 8px 20px var(--coral-glow);
}
.price-card .tier-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.price-card.premium .tier-name { color: var(--coral); }
.price-card .price {
  display: flex; align-items: baseline; gap: 8px;
}
.price-card .price .amount {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 52px;
  letter-spacing: -0.03em;
  line-height: 1;
}
.price-card .price .period { color: var(--ink-soft); font-size: 15px; }
.price-card .blurb { color: var(--ink-dim); font-size: 15px; }
.price-card ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column;
  gap: 10px;
}
.price-card ul li {
  display: flex; align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-dim);
  line-height: 1.5;
}
.price-card ul li > div {
  flex: 1;
  min-width: 0;
}
.price-card ul li svg {
  flex-shrink: 0; margin-top: 4px;
  color: var(--coral);
}
.price-card ul li b { color: var(--ink); font-weight: 600; }
.price-card .price-cta { margin-top: 6px; }
.price-card .price-foot {
  font-size: 12px;
  color: var(--ink-soft);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

/* =============================================================
   FAQ
   ============================================================= */
.faq {
  padding: 90px 0 100px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex; flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item[open] { border-color: var(--line-strong); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 400;
  font-size: 24px;
  color: var(--coral);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .body {
  padding: 0 24px 24px;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.6;
}
.faq-item .body a { color: var(--coral); border-bottom: 1px solid currentColor; }

/* =============================================================
   FINAL CTA
   ============================================================= */
.final-cta {
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(50% 50% at 50% 50%, rgba(236, 81, 96, 0.18), transparent 70%);
  pointer-events: none;
}
.final-cta .container { position: relative; z-index: 2; }
.final-cta h2 {
  margin-bottom: 18px;
  max-width: 720px; margin-left: auto; margin-right: auto;
}
.final-cta .lede {
  margin: 0 auto 36px;
  max-width: 580px;
}
.final-cta .cta-row {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.final-cta .ratings {
  margin-top: 24px;
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px;
  color: var(--ink-soft);
}
.final-cta .ratings .stars {
  color: var(--amber);
  letter-spacing: 0.04em;
}

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
  padding: 60px 0 32px;
  border-top: 1px solid var(--line);
  background: var(--bg-1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer .col h5 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 16px;
}
.footer .col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer .col li a {
  color: var(--ink-dim);
  font-size: 14px;
  transition: color 0.15s;
}
.footer .col li a:hover { color: var(--ink); }
.footer .brand-col p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 32ch;
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* =============================================================
   Mobile fine-tune
   ============================================================= */
@media (max-width: 560px) {
  .hero { padding: 40px 0 60px; }
  .hero-stage { min-height: 480px; }
  .hero-stage .ll-iphone { --pw: 240px; }
  .feat-phone-wrap { min-height: 460px; }
  .feat-phone-wrap .ll-iphone { --pw: 240px; }
  .loop, .features, .science, .compare, .pricing, .faq, .final-cta { padding-left: 0; padding-right: 0; }
  .loop { padding: 80px 0 60px; }
  .features, .science, .compare, .pricing, .faq, .final-cta { padding-top: 80px; padding-bottom: 80px; }
  .section-head { margin-bottom: 40px; }
  .feat-row { padding: 24px 0; }
}

/* =============================================================
   LEGAL (Privacy + Terms)
   ============================================================= */
.legal {
  padding: 100px 0 80px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
}
.legal .section-head { margin-bottom: 48px; }
.legal .lede {
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.02em;
}

.legal-body {
  max-width: 820px;
  margin: 0 auto;
  color: var(--ink-dim);
  font-size: 16px;
  line-height: 1.75;
}

.legal-body h3 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 40px 0 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.legal-body h3:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-body p {
  margin: 0 0 16px;
}

.legal-body ul {
  margin: 12px 0 20px;
  padding-left: 0;
  list-style: none;
}
.legal-body ul li {
  position: relative;
  padding: 8px 0 8px 26px;
  border-bottom: 1px solid var(--line);
}
.legal-body ul li:last-child { border-bottom: none; }
.legal-body ul li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 18px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 3px var(--coral-faint);
}

.legal-body b {
  color: var(--ink);
  font-weight: 600;
}

.legal-body a {
  color: var(--coral);
  border-bottom: 1px solid rgba(236, 81, 96, 0.35);
  transition: color 0.2s, border-color 0.2s;
}
.legal-body a:hover {
  color: var(--coral-bright);
  border-bottom-color: var(--coral-bright);
}

@media (max-width: 720px) {
  .legal { padding: 60px 0 40px; }
  .legal .section-head { margin-bottom: 32px; }
  .legal-body { font-size: 15px; }
  .legal-body h3 {
    font-size: 19px;
    margin: 32px 0 12px;
    padding-top: 24px;
  }
}