/* ============================================
   SAIFIS SAS — Medicina Física y Rehabilitación
   Design tokens
   ============================================ */
:root {
  --bg: #F5F8F7;
  --surface: #FFFFFF;
  --ink: #14231F;
  --ink-soft: #3E524D;
  --teal-900: #0A3B38;
  --teal-800: #0E4B47;
  --teal-700: #146661;
  --teal-500: #2C8A83;
  --teal-200: #CFE8E3;
  --teal-100: #E7F3F1;
  --gold: #D9A441;
  --gold-dark: #B9822A;
  --line: rgba(10, 59, 56, 0.12);

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --container: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--teal-900);
  margin: 0;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-700);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1.5px;
  background: var(--gold);
  display: inline-block;
}

:focus-visible {
  outline: 2.5px solid var(--gold-dark);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  box-shadow: 0 1px 0 var(--line);
  transition: box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 1px 0 var(--line), 0 16px 32px -26px rgba(10, 59, 56, 0.4);
}

.site-header .wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 104px;
  transition: height 0.3s ease;
}

.site-header.is-scrolled .wrap { height: 72px; }

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  flex: none;
}

.brand-logo {
  height: 60px;
  width: auto;
  display: block;
  transition: height 0.3s ease;
}

.site-header.is-scrolled .brand-logo { height: 42px; }

nav {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: flex-end;
}

.nav-links {
  display: none;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  white-space: nowrap;
  position: relative;
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1.5px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-links a:hover { color: var(--teal-800); }
.nav-links a:hover::after { transform: scaleX(1); }

@media (min-width: 1080px) {
  .nav-links {
    display: flex;
    align-items: center;
    position: static;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
  }
}

/* Hamburger toggle — visible below 1080px */
.nav-toggle {
  flex: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--surface);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--teal-900);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (min-width: 1080px) {
  .nav-toggle { display: none; }
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Mobile/tablet dropdown panel */
@media (max-width: 1079.98px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 30px -20px rgba(10, 59, 56, 0.3);
    padding: 8px 28px 18px;
  }

  .nav-links.is-open { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
    font-size: 15.5px;
  }

  .nav-links li:last-child a { border-bottom: none; }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 3px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.btn-primary {
  background: var(--teal-900);
  color: #fff;
}

.btn-primary:hover {
  background: var(--teal-800);
  box-shadow: 0 6px 18px rgba(10, 59, 56, 0.25);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--teal-900);
  background: transparent;
}

.btn-ghost:hover { background: var(--teal-100); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 76px 0 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 64px;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
    padding-bottom: 96px;
  }
}

.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  line-height: 1.06;
  margin: 20px 0 22px;
}

.hero h1 em {
  font-style: normal;
  color: var(--teal-700);
  position: relative;
}

.hero-lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--teal-900);
}

.hero-stat span {
  font-size: 13px;
  color: var(--ink-soft);
}

.hero-portrait {
  position: relative;
  justify-self: center;
}

.portrait-card {
  position: relative;
  width: min(320px, 82vw);
  background: var(--surface);
  border-radius: 4px;
  padding: 14px 14px 20px;
  box-shadow: 0 30px 60px -25px rgba(10, 59, 56, 0.35);
}

.portrait-card img {
  width: 100%;
  border-radius: 2px;
  aspect-ratio: 4/3.2;
  object-fit: cover;
  object-position: center 20%;
}

.portrait-caption {
  padding-top: 14px;
  text-align: left;
}

.portrait-caption b {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--teal-900);
}

.portrait-caption span {
  font-size: 12.5px;
  color: var(--ink-soft);
}

.portrait-tag {
  position: absolute;
  top: -14px;
  left: -14px;
  background: var(--gold);
  color: var(--teal-900);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 2px;
  font-weight: 700;
  box-shadow: 0 10px 20px -10px rgba(185, 130, 42, 0.6);
}

/* Tide-line divider — signature element */
.tide {
  display: block;
  width: 100%;
  height: auto;
  margin-top: -2px;
}

/* ---------- Entrance animation (hero) ---------- */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-scale-in {
  from { opacity: 0; transform: translateY(18px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.hero .eyebrow,
.hero h1,
.hero-lede,
.hero-actions,
.hero-stats {
  opacity: 0;
  animation: fade-up 0.7s ease forwards;
}

.hero .eyebrow   { animation-delay: 0.05s; }
.hero h1         { animation-delay: 0.15s; }
.hero-lede       { animation-delay: 0.28s; }
.hero-actions    { animation-delay: 0.4s; }
.hero-stats      { animation-delay: 0.5s; }

.hero-portrait {
  opacity: 0;
  animation: fade-scale-in 0.8s ease forwards;
  animation-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  .hero .eyebrow, .hero h1, .hero-lede, .hero-actions, .hero-stats, .hero-portrait {
    animation: none;
    opacity: 1;
  }
}

/* ---------- Section shell ---------- */
section { position: relative; }

.section-pad {
  padding: 88px 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  margin-top: 16px;
  line-height: 1.15;
}

.section-head p {
  color: var(--ink-soft);
  font-size: 16.5px;
  margin-top: 16px;
}

/* ---------- Sobre nosotros ---------- */
.about {
  background: var(--teal-900);
  color: #EAF3F1;
}

.about .eyebrow { color: var(--teal-200); }
.about .eyebrow::before { background: var(--gold); }
.about .section-head h2 { color: #fff; }
.about .section-head p { color: rgba(234, 243, 241, 0.78); }

.about-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}

@media (min-width: 780px) {
  .about-grid { grid-template-columns: repeat(3, 1fr); }
}

.about-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  padding: 28px 26px;
}

.about-card .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.about-card h3 {
  color: #fff;
  font-size: 19px;
  margin: 14px 0 10px;
}

.about-card p {
  color: rgba(234, 243, 241, 0.75);
  font-size: 14.5px;
  margin: 0;
}

/* ---------- Servicios ---------- */
.services-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1080px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 30px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(10, 59, 56, 0.3);
}

.service-icon {
  width: 42px;
  height: 42px;
  color: var(--teal-700);
  margin-bottom: 18px;
}

.service-card h3 {
  font-size: 17.5px;
  margin-bottom: 10px;
  line-height: 1.3;
}

.service-card p {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0;
}

/* Electrodiagnóstico / procedimientos — detail lists */
.detail-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}

.detail-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 860px) {
  .detail-columns { grid-template-columns: 1fr 1fr; }
}

.detail-panel {
  padding: 40px 36px;
}

.detail-panel + .detail-panel {
  border-top: 1px solid var(--line);
}

@media (min-width: 860px) {
  .detail-panel + .detail-panel {
    border-top: none;
    border-left: 1px solid var(--line);
  }
}

.detail-panel .eyebrow { margin-bottom: 14px; }

.detail-panel h3 {
  font-size: 21px;
  margin-bottom: 12px;
}

.detail-panel > p {
  color: var(--ink-soft);
  font-size: 15px;
  margin-bottom: 22px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tag-list li {
  font-size: 13px;
  font-family: var(--font-mono);
  background: var(--teal-100);
  color: var(--teal-800);
  padding: 7px 12px;
  border-radius: 2px;
  border: 1px solid var(--teal-200);
}

/* ---------- Ocupacional exams strip ---------- */
.exams-strip {
  background: var(--teal-100);
  border-top: 1px solid var(--teal-200);
  border-bottom: 1px solid var(--teal-200);
}

.exams-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--teal-200);
  border: 1px solid var(--teal-200);
  border-radius: 4px;
  overflow: hidden;
}

@media (min-width: 640px) {
  .exams-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 900px) {
  .exams-grid { grid-template-columns: repeat(4, 1fr); }
}

.exam-item {
  background: var(--surface);
  padding: 20px 18px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--teal-900);
  display: flex;
  align-items: center;
  gap: 10px;
}

.exam-item::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex: none;
}

/* ---------- Misión / Visión ---------- */
.mv-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

@media (min-width: 760px) {
  .mv-grid { grid-template-columns: 1fr 1fr; }
}

.mv-card {
  padding: 36px 34px;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.mv-card.mision { background: var(--surface); }
.mv-card.vision { background: var(--teal-900); color: #EAF3F1; }
.mv-card.vision h3 { color: #fff; }
.mv-card.vision p { color: rgba(234, 243, 241, 0.8); }

.mv-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.mv-card p {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Contacto ---------- */
.contact {
  background: var(--teal-900);
  color: #fff;
}

.contact .section-head h2 { color: #fff; }
.contact .eyebrow { color: var(--teal-200); }
.contact .eyebrow::before { background: var(--gold); }

.contact-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 760px) {
  .contact-grid { grid-template-columns: repeat(3, 1fr); }
}

.contact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 4px;
  padding: 26px 24px;
}

.btn-cta-block {
  display: inline-flex;
  margin-bottom: 32px;
  font-size: 15px;
  padding: 15px 30px;
}

.btn-pulse {
  position: relative;
}

.btn-pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 3px;
  border: 1.5px solid var(--gold);
  animation: pulse-ring 2.2s ease-out infinite;
}

@keyframes pulse-ring {
  0%   { transform: scale(1);    opacity: 0.7; }
  80%  { transform: scale(1.14); opacity: 0; }
  100% { transform: scale(1.14); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-pulse::after { animation: none; display: none; }
}

.contact-icon {
  width: 26px;
  height: 26px;
  color: var(--gold);
  margin-bottom: 14px;
}

.btn-whatsapp {
  display: inline-flex !important;
  align-items: center;
  gap: 9px;
  margin-top: 14px !important;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 3px;
  font-size: 14px !important;
  font-weight: 600 !important;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.btn-whatsapp:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-whatsapp svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.contact-card .eyebrow { margin-bottom: 14px; font-size: 11.5px; }

.contact-card a,
.contact-card p {
  display: block;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  margin: 6px 0;
}

.contact-card a:hover { color: var(--gold); }

.contact-card .sub {
  display: block;
  font-size: 13.5px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 8px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--teal-900);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 28px 0 34px;
}

.footer-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.footer-logo {
  height: 30px;
  width: auto;
  flex: none;
  background: #fff;
  padding: 5px 10px;
  border-radius: 3px;
}

@media (min-width: 700px) {
  .footer-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.about-grid .about-card:nth-child(1),
.services-grid .service-card:nth-child(1),
.contact-grid .contact-card:nth-child(1) { transition-delay: 0s; }

.about-grid .about-card:nth-child(2),
.services-grid .service-card:nth-child(2),
.mv-grid .mv-card:nth-child(2),
.contact-grid .contact-card:nth-child(2) { transition-delay: 0.1s; }

.about-grid .about-card:nth-child(3),
.services-grid .service-card:nth-child(3),
.contact-grid .contact-card:nth-child(3) { transition-delay: 0.2s; }

.services-grid .service-card:nth-child(4) { transition-delay: 0.3s; }

/* Gentle float on the hero portrait tag */
@keyframes float-tag {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

.portrait-tag {
  animation: float-tag 3.2s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .portrait-tag { animation: none; }
}