/* =========================================
   RESET & BASE
========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-dark:   #1a5276;
  --blue-mid:    #2471a3;
  --blue-light:  #d6eaf8;
  --green-dark:  #1e8449;
  --green-mid:   #27ae60;
  --green-light: #d5f5e3;
  --white:       #ffffff;
  --gray-bg:     #f4f6f9;
  --gray-mid:    #aab4c0;
  --gray-dark:   #4a5568;
  --text:        #1c2833;
  --shadow-sm:   0 2px 8px rgba(26,82,118,.10);
  --shadow-md:   0 8px 32px rgba(26,82,118,.15);
  --shadow-lg:   0 16px 48px rgba(26,82,118,.20);
  --radius:      14px;
  --radius-sm:   8px;
  --transition:  .3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: 90px 0; }
.section--gray { background: var(--gray-bg); }

.section-label {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: .5rem;
}

.section-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--blue-dark);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-dark);
  max-width: 640px;
  margin-bottom: 2.8rem;
}

/* ANIMATIONS */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-delay-1 { transition-delay: .1s; }
.fade-in-delay-2 { transition-delay: .2s; }
.fade-in-delay-3 { transition-delay: .3s; }
.fade-in-delay-4 { transition-delay: .4s; }
.fade-in-delay-5 { transition-delay: .5s; }

/* NAVBAR */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(26,82,118,.08); transition: box-shadow var(--transition); }
.navbar.scrolled { box-shadow: var(--shadow-md); }
.navbar__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.navbar__logo { display: flex; align-items: center; gap: .6rem; font-weight: 800; font-size: 1.15rem; color: var(--blue-dark); }
.navbar__logo-span { color: var(--green-mid); }
.navbar__logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid)); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-size: .95rem; flex-shrink: 0; }
.navbar__menu { display: flex; align-items: center; gap: .2rem; list-style: none; }
.navbar__menu a { font-size: .875rem; font-weight: 500; color: var(--gray-dark); padding: .45rem .8rem; border-radius: var(--radius-sm); transition: color var(--transition), background var(--transition); }
.navbar__menu a:hover { color: var(--blue-dark); background: var(--blue-light); }
.navbar__cta { background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid)); color: white !important; padding: .45rem 1.1rem !important; border-radius: 20px !important; }
.navbar__cta:hover { background: linear-gradient(135deg, var(--blue-mid), var(--blue-dark)) !important; color: white !important; }
.navbar__hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: .4rem; background: none; border: none; }
.navbar__hamburger span { display: block; width: 24px; height: 2px; background: var(--blue-dark); border-radius: 2px; transition: var(--transition); }
.navbar__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; background: linear-gradient(155deg, #0d2d4a 0%, #1a5276 45%, #1e8449 100%); padding-top: 68px; }
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; position: relative; z-index: 1; padding: 4rem 0; }
.hero__badge { display: inline-flex; align-items: center; gap: .5rem; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25); color: white; font-size: .8rem; font-weight: 600; letter-spacing: .06em; padding: .4rem 1rem; border-radius: 20px; margin-bottom: 1.4rem; backdrop-filter: blur(4px); }
.hero__title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; color: white; line-height: 1.15; margin-bottom: 1.2rem; }
.hero__title .highlight { background: linear-gradient(90deg, #5dde8a, #a8f0c0); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero__subtitle { color: rgba(255,255,255,.85); font-size: 1.05rem; margin-bottom: .6rem; }
.hero__doctor { color: rgba(255,255,255,.7); font-size: .9rem; margin-bottom: 2.2rem; }
.hero__doctor strong { color: white; }
.hero__ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: .55rem; font-family: 'Poppins', sans-serif; font-size: .9rem; font-weight: 600; border: none; cursor: pointer; border-radius: 30px; padding: .75rem 1.6rem; transition: transform var(--transition), box-shadow var(--transition), background var(--transition); }
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: linear-gradient(135deg, var(--green-mid), var(--green-dark)); color: white; box-shadow: 0 4px 18px rgba(39,174,96,.4); }
.btn--primary:hover { box-shadow: 0 8px 28px rgba(39,174,96,.5); }
.btn--outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,.5); }
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: white; }
.btn--blue { background: linear-gradient(135deg, var(--blue-mid), var(--blue-dark)); color: white; box-shadow: 0 4px 18px rgba(26,82,118,.35); }
.btn--blue:hover { box-shadow: 0 8px 28px rgba(26,82,118,.45); }
.btn--green { background: linear-gradient(135deg, var(--green-mid), var(--green-dark)); color: white; box-shadow: 0 4px 18px rgba(39,174,96,.4); }
.btn--green:hover { box-shadow: 0 8px 28px rgba(39,174,96,.5); }
.btn--lg { font-size: 1rem; padding: .9rem 2rem; }
.hero__visual { display: flex; justify-content: center; align-items: center; }
.hero__stats { display: flex; gap: 1.5rem; margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,.15); flex-wrap: wrap; }
.hero__stat { text-align: center; }
.hero__stat-value { font-size: 1.9rem; font-weight: 800; color: white; line-height: 1; }
.hero__stat-label { font-size: .78rem; color: rgba(255,255,255,.6); margin-top: .2rem; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.8rem; }
.card { background: var(--white); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid rgba(26,82,118,.07); transition: transform var(--transition), box-shadow var(--transition); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card__icon { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 1.1rem; }
.card__icon--blue { background: var(--blue-light); color: var(--blue-mid); }
.card__icon--green { background: var(--green-light); color: var(--green-dark); }
.card__title { font-size: 1.05rem; font-weight: 700; color: var(--blue-dark); margin-bottom: .5rem; }
.card__text { font-size: .9rem; color: var(--gray-dark); line-height: 1.65; }
.colonoscopia__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; }
.colonoscopia__visual { display: flex; justify-content: center; }
.info-list { list-style: none; display: flex; flex-direction: column; gap: .8rem; }
.info-list li { display: flex; align-items: flex-start; gap: .8rem; font-size: .92rem; color: var(--gray-dark); }
.info-list li i { color: var(--green-mid); font-size: 1rem; margin-top: .18rem; flex-shrink: 0; }
.steps { display: flex; flex-direction: column; gap: 1rem; margin-top: 1.5rem; }
.step { display: flex; gap: 1rem; align-items: flex-start; }
.step__num { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid)); color: white; font-size: .8rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step__text { font-size: .88rem; color: var(--gray-dark); padding-top: .35rem; }
.step__text strong { color: var(--blue-dark); }
.patologia__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }

.patologia-card { background: white; border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow-sm); border: 1px solid rgba(26,82,118,.07); border-top: 4px solid var(--blue-mid); transition: transform var(--transition), box-shadow var(--transition); }
.patologia-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }

.cancer { background: linear-gradient(160deg, #0d2d4a 0%, #1a5276 60%, #145a32 100%); color: white; }
.cancer .section-label { color: #5dde8a; }
.cancer .section-title { color: white; }
.cancer .section-subtitle { color: rgba(255,255,255,.7); }

.apps__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.app-card { border-radius: 20px; padding: 2.5rem; position: relative; overflow: hidden; box-shadow: var(--shadow-lg); transition: transform var(--transition), box-shadow var(--transition); }
.app-card:hover { transform: translateY(-8px); box-shadow: 0 24px 60px rgba(0,0,0,.2); }
.app-card--blue { background: linear-gradient(145deg, #1a5276 0%, #2e86c1 50%, #1a5276 100%); }
.app-card--green { background: linear-gradient(145deg, #1e5631 0%, #27ae60 50%, #1e5631 100%); }

.contacto__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.contacto__info { display: flex; flex-direction: column; gap: 1.2rem; }
.contact-item { display: flex; align-items: center; gap: 1rem; padding: 1.1rem 1.4rem; background: white; border-radius: var(--radius); border: 1px solid rgba(26,82,118,.1); box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); }
.contact-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.footer { background: #0d1f2d; color: rgba(255,255,255,.6); padding: 2.5rem 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.scroll-top { position: fixed; bottom: 2rem; right: 2rem; width: 46px; height: 46px; background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid)); color: white; border: none; border-radius: 50%; font-size: 1rem; cursor: pointer; box-shadow: var(--shadow-md); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity var(--transition), transform var(--transition); z-index: 900; }
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.lang-selector { position: relative; margin-left: .5rem; }
.store-tabs { display: flex; gap: .5rem; background: var(--gray-bg); padding: .4rem; border-radius: 14px; margin-bottom: 3rem; flex-wrap: wrap; }
.store-tab { flex: 1; min-width: 140px; padding: .75rem 1.2rem; border: none; background: transparent; border-radius: 10px; font-family: 'Poppins', sans-serif; font-size: .88rem; font-weight: 600; color: var(--gray-dark); cursor: pointer; transition: background var(--transition), color var(--transition), box-shadow var(--transition); display: flex; align-items: center; justify-content: center; gap: .5rem; }
.store-tab.active { background: white; color: var(--blue-dark); box-shadow: 0 2px 12px rgba(26,82,118,.13); }
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__ctas { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { display: none; }
  .colonoscopia__layout { grid-template-columns: 1fr; }
  .colonoscopia__visual { display: none; }
  .apps__grid { grid-template-columns: 1fr; }
  .contacto__layout { grid-template-columns: 1fr; }
  .contacto__visual { display: none; }
  .footer__inner { justify-content: center; text-align: center; }
}
@media (max-width: 720px) {
  .navbar__menu { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: white; border-bottom: 1px solid rgba(26,82,118,.1); padding: 1rem; gap: .3rem; box-shadow: var(--shadow-md); }
  .navbar__menu.open { display: flex; }
  .navbar__hamburger { display: flex; }
  .section { padding: 60px 0; }
}
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .patologia__grid { grid-template-columns: 1fr; }
}