/* =============================================
   STYLES — CReFyN Landing
   Centro de Rehabilitación Física y Neurológica
   ============================================= */

/* ---- Variables de marca ---- */
:root {
  --color-primary:    #9580C8;
  --color-secondary:  #7EB8CC;
  --color-accent:     #7B5EA7;
  --color-bg:         #ffffff;
  --color-bg-alt:     #F7F5FC;
  --color-text:       #1a1a1a;
  --color-text-light: #666666;
  --color-white:      #ffffff;
  --color-border:     #e8e4f4;

  --font-main:        'Poppins', sans-serif;
  --font-size-base:   16px;
  --line-height-base: 1.65;

  --section-padding:  90px 0;
  --container-max:    1120px;
  --border-radius:    14px;
  --border-radius-sm: 8px;
  --shadow:           0 4px 24px rgba(149, 128, 200, 0.10);
  --shadow-hover:     0 10px 36px rgba(149, 128, 200, 0.22);
  --transition:       0.3s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--font-main); cursor: pointer; border: none; }

/* ---- Utilidades ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section-pad { padding: var(--section-padding); }
.bg-alt { background: var(--color-bg-alt); }

.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}
.section-title .accent { color: var(--color-primary); }
.section-subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto;
}

/* ---- Botones ---- */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.9rem 2.2rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-cta:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(123, 94, 167, 0.35);
}

.btn-cta-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.7);
  padding: 0.85rem 2rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
}
.btn-cta-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  background: transparent;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 20px rgba(149,128,200,0.12);
  padding: 0.8rem 0;
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.5px;
}
.navbar-logo-icon {
  width: 42px;
  height: 42px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(123, 94, 167, 0.35));
  transition: width var(--transition), height var(--transition);
}
.navbar.scrolled .navbar-logo-icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 1px 4px rgba(123, 94, 167, 0.25));
}
.navbar-logo-textwrap {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.navbar-logo-text span {
  color: var(--color-secondary);
}
.navbar-logo-sub {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: rgba(255, 255, 255, 0.82);
  margin-top: 2px;
}
.navbar.scrolled .navbar-logo { color: var(--color-accent); }
.navbar.scrolled .navbar-logo-text span { color: var(--color-primary); }
.navbar.scrolled .navbar-logo-sub { color: var(--color-text-light); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-menu a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  transition: color var(--transition);
}
.nav-menu a:hover { color: var(--color-white); }
.navbar.scrolled .nav-menu a { color: var(--color-text); }
.navbar.scrolled .nav-menu a:hover { color: var(--color-primary); }

.nav-cta {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 0.55rem 1.4rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: var(--color-primary) !important; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.navbar.scrolled .menu-toggle span { background: var(--color-text); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.75);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(30, 15, 55, 0.72) 0%,
    rgba(149, 128, 200, 0.45) 60%,
    rgba(30, 15, 55, 0.80) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 740px;
  padding: 0 1.5rem;
}
.hero-logo {
  display: block;
  width: clamp(96px, 14vw, 140px);
  height: auto;
  margin: 0.4rem auto 1rem;
  filter: drop-shadow(0 6px 22px rgba(123, 94, 167, 0.45));
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  padding: 0.35rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  color: rgba(255,255,255,0.95);
}
.hero-title {
  font-size: clamp(3.2rem, 8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1;
  margin-bottom: 0.6rem;
  background: linear-gradient(120deg, #c9b8ef 0%, var(--color-primary) 55%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
  filter: drop-shadow(0 4px 20px rgba(123, 94, 167, 0.4));
}
.hero-name {
  font-size: clamp(0.85rem, 1.8vw, 1rem);
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 1.4rem;
}
.hero-tagline {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-style: italic;
  opacity: 0.92;
  margin-bottom: 2.8rem;
  line-height: 1.5;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  letter-spacing: 1px;
  animation: scrollBounce 2s ease infinite;
}
.hero-scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,0.4);
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* =============================================
   SERVICIOS
   ============================================= */
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.4rem;
}
.card-servicio {
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem 1.8rem;
  text-align: center;
  border-top: 4px solid var(--color-primary);
  cursor: default;
}
.card-servicio:hover {
  box-shadow: var(--shadow-hover);
  border-top-color: var(--color-accent);
}
.card-icon {
  font-size: 2.4rem;
  margin-bottom: 1rem;
  display: block;
}
.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.6rem;
}
.card-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* =============================================
   EQUIPO
   ============================================= */
.equipo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.prof-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.2rem 1.5rem;
  text-align: center;
  overflow: hidden;
}
.prof-card:hover { box-shadow: var(--shadow-hover); }

.prof-avatar-wrap {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1.1rem;
  border: 3px solid var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.prof-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 88% 12%;
}
.prof-initials {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
}
.prof-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.3rem;
  line-height: 1.3;
}
.prof-esp {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.prof-mat {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* =============================================
   DIFERENCIAL
   ============================================= */
.diferencial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}
.dif-item {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
}
.dif-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.dif-text h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}
.dif-text p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* =============================================
   CONTACTO
   ============================================= */
.contacto {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  color: var(--color-white);
}
.contacto .section-title { color: var(--color-white); }
.contacto .section-title .accent { color: rgba(255,255,255,0.85); }
.contacto .section-subtitle { color: rgba(255,255,255,0.85); }

.contacto-inner { text-align: center; }
.contacto-acciones {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2.5rem 0;
}
.btn-wa {
  background: #25D366;
  color: var(--color-white);
  padding: 1rem 2.4rem;
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-wa:hover {
  background: #1eb854;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.contacto-datos {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.contacto-dato {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
}
.contacto-dato-icon {
  font-size: 1.2rem;
  opacity: 0.85;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #1a1433;
  color: rgba(255,255,255,0.75);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
}
.footer-brand-top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.footer-logo-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 8px rgba(123, 94, 167, 0.4));
}
.footer-brand-textwrap {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.footer-brand-name span { color: var(--color-secondary); }
.footer-brand-tagline {
  font-size: 0.72rem;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  margin-top: 0.2rem;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
}
.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-secondary); }
.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}
.footer-credit {
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}
.footer-credit p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.3px;
}
.footer-credit a {
  color: var(--color-secondary);
  font-weight: 600;
  transition: color var(--transition);
}
.footer-credit a:hover { color: var(--color-primary); }

/* =============================================
   WHATSAPP FLOAT
   ============================================= */
.wa-float {
  position: fixed;
  bottom: 1.8rem;
  right: 1.8rem;
  z-index: 999;
  width: 58px;
  height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.5);
  transition: transform var(--transition);
}
.wa-float:hover { transform: scale(1.1); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  :root { --section-padding: 64px 0; }

  /* Navbar mobile */
  .menu-toggle { display: flex; }
  .navbar-logo { font-size: 1.3rem; gap: 0.5rem; }
  .navbar-logo-icon { width: 36px; height: 36px; }
  .navbar.scrolled .navbar-logo-icon { width: 32px; height: 32px; }
  .navbar-logo-sub {
    font-size: 0.55rem;
    max-width: 180px;
    line-height: 1.2;
  }
  .nav-menu {
    position: fixed;
    top: 0; right: -100%;
    width: 75vw;
    max-width: 300px;
    height: 100vh;
    background: rgba(26, 20, 51, 0.97);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.8rem;
    transition: right 0.35s ease;
    z-index: 999;
  }
  .nav-menu.open { right: 0; }
  .nav-menu a { color: rgba(255,255,255,0.85) !important; font-size: 1.1rem; }
  .nav-cta {
    background: var(--color-accent) !important;
    color: var(--color-white) !important;
    padding: 0.6rem 1.5rem;
    border-radius: var(--border-radius-sm);
  }

  /* Hero */
  .hero-actions { flex-direction: column; }
  .hero-title { font-size: clamp(2.6rem, 12vw, 4rem); }

  /* Servicios */
  .servicios-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .card-servicio { padding: 1.5rem 1rem; }

  /* Equipo */
  .equipo-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }

  /* Diferencial */
  .diferencial-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }

  /* Contacto */
  .contacto-datos { flex-direction: column; align-items: center; gap: 1rem; }
}

@media (max-width: 440px) {
  .servicios-grid { grid-template-columns: 1fr; }
  .equipo-grid { grid-template-columns: 1fr; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .servicios-grid { grid-template-columns: repeat(3, 1fr); }
  .equipo-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1025px) {
  .servicios-grid { grid-template-columns: repeat(4, 1fr); }
  .equipo-grid { grid-template-columns: repeat(4, 1fr); }
  .diferencial-grid { grid-template-columns: repeat(2, 1fr); }
}