/* Kairosalud — landing pública. Tokens de docs/design-system.md ("Clinical Precision"). */

:root {
  --bg: #fcf8fa;
  --bg-low: #f6f3f5;
  --surface: #ffffff;
  --surface-2: #f0edef;
  --surface-3: #eae7e9;
  --text: #1b1b1d;
  --text-2: #45464d;
  --border: #c6c6cd;
  --border-soft: #e4e2e4;
  --navy: #131b2e;
  --navy-soft: #dae2fd;
  --navy-muted: #9ea4b8;
  --mint: #006c49;
  --mint-dark: #005236;
  --mint-bright: #6ffbbe;
  --mint-bright-hover: #4edea3;
  --on-mint-bright: #002113;
  --mint-tint: #e6f0ed;
  --error: #ba1a1a;
  --error-bg: #ffdad6;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-frame: 0 24px 60px rgba(19, 27, 46, 0.18);
  --max: 1160px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

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

a {
  color: var(--mint);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--mint-dark);
}

:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s, transform 0.15s;
}

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

.btn-primary {
  background: var(--navy);
  color: #fff;
}

.btn-primary:hover {
  background: #1f2a45;
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--mint);
  border-color: var(--mint);
}

.btn-secondary:hover {
  background: var(--mint-tint);
  color: var(--mint-dark);
}

.btn-mint {
  background: var(--mint-bright);
  color: var(--on-mint-bright);
}

.btn-mint:hover {
  background: var(--mint-bright-hover);
  color: var(--on-mint-bright);
}

.btn-sm {
  min-height: 40px;
  padding: 8px 16px;
  font-size: 0.9375rem;
}

/* ---------- Cabecera ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(252, 248, 250, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--navy);
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-2);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
}

.nav-links a:hover {
  color: var(--navy);
}

.nav-cta {
  flex: none;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
}

/* ---------- Secciones ---------- */

.section {
  padding-block: 88px;
}

.section-tight {
  padding-block: 64px;
}

.section-alt {
  background: var(--bg-low);
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mint);
}

.eyebrow-pill {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--mint-tint);
}

h2 {
  font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
}

.lead {
  margin-top: 16px;
  font-size: 1.125rem;
  color: var(--text-2);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: 72px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.25rem, 1.4rem + 3.6vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--navy);
}

.hero h1 .accent {
  color: var(--mint);
}

.hero .lead {
  max-width: 560px;
  margin-top: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  font-size: 0.9375rem;
  color: var(--text-2);
}

.hero-note .dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--mint-bright);
  box-shadow: 0 0 0 4px rgba(111, 251, 190, 0.3);
}

.hero-media {
  position: relative;
}

.hero-media::before {
  content: "";
  position: absolute;
  inset: 10% -10% -20% 20%;
  background: radial-gradient(closest-side, rgba(111, 251, 190, 0.35), transparent 70%);
  z-index: 0;
}

.frame {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: var(--surface);
  box-shadow: var(--shadow-frame);
}

.frame-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding-inline: 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-soft);
}

.frame-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.frame-bar .url {
  flex: 1;
  width: auto;
  height: 20px;
  margin-left: 10px;
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.75rem;
  line-height: 20px;
  padding-inline: 10px;
}

.frame img {
  width: 100%;
}

@media (min-width: 960px) {
  .hero {
    padding-block: 96px 32px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }

  .hero-media .frame {
    transform: perspective(1600px) rotateY(-6deg) rotateX(2deg);
    transform-origin: left center;
  }
}

/* ---------- Franja de confianza ---------- */

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  padding-block: 40px;
  color: var(--text-2);
  font-size: 0.9375rem;
}

.trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.trust svg {
  width: 18px;
  height: 18px;
  color: var(--mint);
}

/* ---------- Tarjetas ---------- */

.grid {
  display: grid;
  gap: 20px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
}

.card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--navy);
}

.card p {
  margin-top: 10px;
  color: var(--text-2);
  font-size: 0.9375rem;
}

.card ul {
  margin-top: 14px;
  display: grid;
  gap: 8px;
  color: var(--text-2);
  font-size: 0.9375rem;
}

.card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.card li svg {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--mint);
}

.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 12px;
  background: var(--mint-tint);
  color: var(--mint);
}

.icon-box svg {
  width: 24px;
  height: 24px;
}

.icon-box.navy {
  background: var(--navy-soft);
  color: var(--navy);
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.tag-mint {
  background: var(--mint-bright);
  color: var(--on-mint-bright);
}

.tag-soft {
  background: var(--surface-2);
  color: var(--text-2);
}

.card > .tag {
  position: absolute;
  top: 24px;
  right: 24px;
}

.pricing-card > .tag {
  position: static;
}

/* ---------- Capturas ---------- */

.shots {
  display: grid;
  gap: 24px;
}

.shots-web {
  display: grid;
  gap: 24px;
}

.shots-web figure,
.shots-mobile figure {
  margin: 0;
}

.shots-web figcaption,
.shots-mobile figcaption {
  margin-top: 12px;
  font-size: 0.9375rem;
  color: var(--text-2);
}

.shots-web figcaption strong,
.shots-mobile figcaption strong {
  color: var(--navy);
  font-weight: 600;
}

.shots-mobile {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 260px));
  justify-content: center;
}

.phone {
  padding: 10px;
  border-radius: 32px;
  background: var(--navy);
  box-shadow: var(--shadow-frame);
}

.phone img {
  border-radius: 24px;
}

@media (min-width: 900px) {
  .shots {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    align-items: start;
  }

  .shots-mobile {
    grid-template-columns: 1fr 1fr;
    justify-content: stretch;
  }
}

/* ---------- Privacidad (marino) ---------- */

.privacy {
  background: var(--navy);
  color: #fff;
}

.privacy h2 {
  color: #fff;
}

.privacy .eyebrow {
  color: var(--mint-bright);
}

.privacy .lead {
  color: var(--navy-muted);
}

.privacy .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.privacy .card h3 {
  color: #fff;
}

.privacy .card p {
  color: #c3c8d8;
}

.privacy .icon-box {
  background: rgba(111, 251, 190, 0.14);
  color: var(--mint-bright);
}

.privacy-foot {
  margin-top: 36px;
  font-size: 0.9375rem;
  color: var(--navy-muted);
}

.privacy-foot a {
  color: var(--mint-bright);
}

.privacy-foot a:hover {
  color: #fff;
}

/* ---------- Precios ---------- */

.pricing-card {
  position: relative;
  max-width: 720px;
  margin-inline: auto;
  padding: 44px 36px;
  text-align: center;
  border: 2px solid var(--mint-bright);
}

.pricing-card .price {
  margin-top: 20px;
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.pricing-card .price small {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-2);
}

.pricing-card ul {
  margin-top: 28px;
  display: grid;
  gap: 10px;
  justify-content: center;
  text-align: left;
}

.pricing-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--text-2);
}

.pricing-card li svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--mint);
}

.pricing-card .btn {
  margin-top: 28px;
}

/* ---------- Formulario ---------- */

.waitlist {
  background: var(--bg-low);
}

.waitlist-grid {
  display: grid;
  gap: 40px;
  align-items: start;
}

@media (min-width: 900px) {
  .waitlist-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  }
}

.waitlist-copy ul {
  margin-top: 24px;
  display: grid;
  gap: 12px;
  color: var(--text-2);
}

.waitlist-copy li {
  display: flex;
  gap: 10px;
}

.waitlist-copy li span {
  flex: 1;
}

.waitlist-copy li svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  color: var(--mint);
}

.form {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  gap: 18px;
}

@media (min-width: 640px) {
  .form-row.two {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  display: grid;
  gap: 6px;
}

.field + .field,
.form-row + .form-row {
  margin-top: 18px;
}

.form-row .field + .field {
  margin-top: 0;
}

label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-2);
}

.field .hint {
  font-size: 0.8125rem;
  color: var(--text-2);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

input[type="text"],
input[type="email"],
select {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

input::placeholder {
  color: #76777d;
}

input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 0;
  border-color: var(--mint);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2345464d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 20px;
}

.check input {
  flex: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  accent-color: var(--mint);
}

.check label {
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-2);
  line-height: 1.5;
}

.form .btn {
  width: 100%;
  margin-top: 24px;
}

.form-note {
  margin-top: 14px;
  font-size: 0.8125rem;
  color: var(--text-2);
  text-align: center;
}

/* honeypot: fuera de pantalla y fuera del orden de tabulación */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.form-status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
}

.form-status:empty {
  display: none;
}

.form-status.ok {
  background: var(--mint-tint);
  color: var(--mint-dark);
  border: 1px solid #b7e4d2;
}

.form-status.error {
  background: var(--error-bg);
  color: #93000a;
  border: 1px solid #f3b4ad;
}

.btn[aria-busy="true"] {
  opacity: 0.7;
  cursor: progress;
}

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 40px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-2);
  font-size: 0.9375rem;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer-links a {
  color: var(--text-2);
}

.footer-links a:hover {
  color: var(--navy);
}

.footer-meta {
  margin-top: 16px;
  font-size: 0.875rem;
}

/* ---------- Páginas de texto (privacidad, términos, gracias) ---------- */

.doc {
  max-width: 760px;
  margin-inline: auto;
  padding-block: 64px 96px;
}

.doc h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem);
  color: var(--navy);
}

.doc .meta {
  margin-top: 12px;
  color: var(--text-2);
  font-size: 0.9375rem;
}

.doc h2 {
  margin-top: 44px;
  font-size: 1.375rem;
}

.doc h3 {
  margin-top: 28px;
  font-size: 1.0625rem;
  color: var(--navy);
}

.doc p,
.doc li {
  margin-top: 12px;
  color: var(--text-2);
}

.doc ul,
.doc ol {
  padding-left: 22px;
}

.doc ul {
  list-style: disc;
}

.doc ol {
  list-style: decimal;
}

.doc li {
  margin-top: 8px;
}

.doc table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.doc th,
.doc td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-2);
}

.doc th {
  color: var(--navy);
  font-weight: 600;
  background: var(--bg-low);
}

.doc .notice {
  margin-top: 24px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: var(--mint-tint);
  border: 1px solid #b7e4d2;
  color: var(--mint-dark);
}

.thanks {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
}

.thanks .icon-box {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
}

.thanks .icon-box svg {
  width: 36px;
  height: 36px;
}

.thanks .actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}