/* ═══════════════════════════════════════════════════════════════════
   VENEMEDICAL — Sistema de Diseño Centralizado
   Versión: 2.0 | GitHub Pages compatible
   ════════════════════════════════════════════════════════════════════ */

/* ── 1. Google Fonts (una sola vez, para todo el sitio) ─────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ── 2. Reset y Box Model ────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f8f9fa;
  color: #191c1d;
}

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

/* ── 3. Variables CSS (Sistema de Color Centralizado) ────────────── */
:root {
  /* Colores primarios */
  --color-primary:          #003f87;
  --color-primary-container: #0056b3;
  --color-primary-fixed:    #d7e2ff;
  --color-primary-fixed-dim: #acc7ff;
  --color-on-primary:       #ffffff;
  --color-on-primary-fixed: #001a40;
  --color-on-primary-fixed-variant: #004491;
  --color-on-primary-container: #bbd0ff;
  --color-inverse-primary:  #acc7ff;

  /* Colores secundarios */
  --color-secondary:        #006877;
  --color-secondary-container: #75e7fe;
  --color-secondary-fixed:  #a4eeff;
  --color-secondary-fixed-dim: #62d6ed;
  --color-on-secondary:     #ffffff;
  --color-on-secondary-fixed: #001f25;
  --color-on-secondary-fixed-variant: #004e5a;
  --color-on-secondary-container: #006776;

  /* Colores terciarios */
  --color-tertiary:         #004c17;
  --color-tertiary-container: #006722;
  --color-tertiary-fixed:   #83fc8e;
  --color-tertiary-fixed-dim: #66df75;
  --color-on-tertiary:      #ffffff;
  --color-on-tertiary-fixed: #002106;
  --color-on-tertiary-fixed-variant: #00531a;
  --color-on-tertiary-container: #6fe87c;

  /* Superficies */
  --color-background:       #f8f9fa;
  --color-surface:          #f8f9fa;
  --color-surface-pure:     #ffffff;
  --color-surface-bright:   #f8f9fa;
  --color-surface-dim:      #d9dadb;
  --color-surface-variant:  #e1e3e4;
  --color-surface-tint:     #115cb9;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low:    #f3f4f5;
  --color-surface-container:        #edeeef;
  --color-surface-container-high:   #e7e8e9;
  --color-surface-container-highest: #e1e3e4;
  --color-inverse-surface:  #2e3132;
  --color-inverse-on-surface: #f0f1f2;

  /* Texto */
  --color-on-surface:       #191c1d;
  --color-on-surface-variant: #424752;
  --color-on-background:    #191c1d;
  --color-text-main:        #1A1D21;
  --color-text-muted:       #6C757D;

  /* Bordes y outlines */
  --color-outline:          #727784;
  --color-outline-variant:  #c2c6d4;
  --color-border-subtle:    #E9ECEF;

  /* Error */
  --color-error:            #ba1a1a;
  --color-error-container:  #ffdad6;
  --color-on-error:         #ffffff;
  --color-on-error-container: #93000a;

  /* Tipografía */
  --font-family-base: 'Inter', system-ui, sans-serif;

  /* Espaciado */
  --spacing-base:           8px;
  --spacing-gutter:         24px;
  --spacing-section:        80px;
  --spacing-margin-mobile:  16px;
  --container-max:          1200px;

  /* Radios */
  --radius-sm:    0.25rem;
  --radius-md:    0.5rem;
  --radius-lg:    0.75rem;
  --radius-xl:    1rem;
  --radius-full:  9999px;

  /* Sombras */
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:    0 10px 30px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);
  --shadow-xl:    0 20px 60px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.08);

  /* Transiciones */
  --transition-fast:   0.15s ease;
  --transition-base:   0.25s ease;
  --transition-slow:   0.4s ease;

  /* Navbar */
  --navbar-height: 80px;
}

/* ── 4. Navbar Premium ───────────────────────────────────────────── */
.vm-navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--navbar-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.vm-navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.vm-navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-gutter);
  height: 100%;
}

/* Logo en navbar */
.vm-navbar-logo {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), opacity var(--transition-base);
  display: block;
}

.vm-navbar-logo:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

/* Nav links desktop */
.vm-nav-links {
  display: none;
  align-items: center;
  gap: 4px;
  list-style: none;
}

@media (min-width: 768px) {
  .vm-nav-links {
    display: flex;
  }
}

.vm-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.vm-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-surface-container-low);
}

.vm-nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.vm-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

/* Botón CTA navbar */
.vm-btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-container);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.vm-btn-cta:hover {
  background: var(--color-on-primary-fixed-variant);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.vm-btn-cta:active {
  transform: translateY(0);
}

/* Botón hamburguesa */
.vm-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-md);
  color: var(--color-on-surface);
  transition: background var(--transition-fast);
}

.vm-menu-toggle:hover {
  background: var(--color-surface-container-low);
}

@media (min-width: 768px) {
  .vm-menu-toggle {
    display: none;
  }
}

/* ── 5. Mobile Drawer ───────────────────────────────────────────── */
.vm-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.vm-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.vm-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 280px;
  background: var(--color-surface-pure);
  z-index: 999;
  box-shadow: var(--shadow-xl);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.vm-drawer.open {
  transform: translateX(0);
}

.vm-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-subtle);
  height: var(--navbar-height);
  flex-shrink: 0;
}

.vm-drawer-logo {
  height: 36px;
  width: auto;
  max-width: 150px;
  object-fit: contain;
}

.vm-drawer-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-full);
  color: var(--color-on-surface);
  transition: background var(--transition-fast);
}

.vm-drawer-close:hover {
  background: var(--color-surface-container-low);
}

.vm-drawer-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.vm-drawer-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-on-surface);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.vm-drawer-link:hover {
  background: var(--color-surface-container-low);
}

.vm-drawer-link.active {
  background: var(--color-primary-fixed);
  color: var(--color-primary);
  font-weight: 600;
}

.vm-drawer-link.active .material-symbols-outlined {
  color: var(--color-primary);
}

.vm-drawer-footer {
  padding: 16px;
  border-top: 1px solid var(--color-border-subtle);
}

.vm-drawer-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: var(--color-primary-container);
  color: #ffffff;
  padding: 14px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.vm-drawer-cta:hover {
  background: var(--color-on-primary-fixed-variant);
}

/* ── 6. Footer ───────────────────────────────────────────────────── */
.vm-footer {
  background: var(--color-surface-container);
  padding: var(--spacing-section) var(--spacing-gutter);
  margin-top: auto;
  border-top: 1px solid var(--color-border-subtle);
}

.vm-footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-gutter);
}

@media (max-width: 1023px) {
  .vm-footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .vm-footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.vm-footer-logo {
  height: 52px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 12px;
}

.vm-footer-desc {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  line-height: 1.6;
  max-width: 240px;
}

.vm-footer-heading {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-on-surface);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.vm-footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.vm-footer-link {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.vm-footer-link:hover {
  color: var(--color-primary);
}

.vm-footer-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.vm-footer-bottom {
  max-width: var(--container-max);
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-subtle);
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ── 7. Botones Globales ─────────────────────────────────────────── */
.vm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-lg);
  font-family: var(--font-family-base);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.vm-btn-primary {
  background: var(--color-primary-container);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.vm-btn-primary:hover {
  background: var(--color-on-primary-fixed-variant);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.vm-btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary-fixed-dim);
}

.vm-btn-outline:hover {
  background: var(--color-primary-fixed);
  border-color: var(--color-primary);
}

/* ── 8. Cards ────────────────────────────────────────────────────── */
.vm-card {
  background: var(--color-surface-pure);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.vm-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ── 9. Cookie Banner ────────────────────────────────────────────── */
.vm-cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  padding: 16px;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.vm-cookie-banner.hidden {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}

.vm-cookie-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  background: var(--color-surface-pure);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

@media (min-width: 768px) {
  .vm-cookie-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.vm-cookie-text {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  line-height: 1.5;
  text-align: center;
}

@media (min-width: 768px) {
  .vm-cookie-text {
    text-align: left;
  }
}

.vm-cookie-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* ── 10. Venemebot Widget (WhatsApp) ─────────────────────────────── */
.vm-whatsapp-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: bottom 0.4s ease;
}

/* En móvil, sube el botón cuando el banner de cookies está visible */
@media (max-width: 767px) {
  body:not(.cookies-accepted) .vm-whatsapp-widget {
    bottom: 130px;
  }
}

.vm-whatsapp-tooltip {
  background: var(--color-on-secondary-fixed);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-base);
  pointer-events: none;
  white-space: nowrap;
}

.vm-whatsapp-widget:hover .vm-whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

.vm-whatsapp-btn {
  width: 56px;
  height: 56px;
  background: #25d366;
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  animation: vm-pulse 2.5s infinite;
  transition: transform var(--transition-fast);
}

.vm-whatsapp-btn:hover {
  transform: scale(1.1);
  animation-play-state: paused;
}

.vm-whatsapp-icon {
  width: 28px;
  height: 28px;
}

/* ── 11. Animaciones ─────────────────────────────────────────────── */
@keyframes vm-pulse {
  0%   { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0.7); }
  70%  { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0); }
}

@keyframes vm-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-6px); }
}

@keyframes vm-fade-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes vm-slide-in-right {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

.vm-animate-fade-in { animation: vm-fade-in 0.5s ease both; }
.vm-animate-float   { animation: vm-float 3s ease-in-out infinite; }

/* ── 12. Logo ────────────────────────────────────────────────────── */
.venemedical-logo {
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), opacity var(--transition-base);
  display: inline-block;
}

.venemedical-logo:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

/* ── 13. Material Symbols (variaciones base) ─────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  user-select: none;
}

.material-symbols-filled {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ── 14. Hero Section ────────────────────────────────────────────── */
.vm-hero {
  position: relative;
  background: var(--color-surface-pure);
  overflow: hidden;
  padding: 80px var(--spacing-gutter) 96px;
}

.vm-hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(0,63,135,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(0,104,119,0.04) 0%, transparent 50%);
  pointer-events: none;
}

/* ── 15. Responsive Utilidades ───────────────────────────────────── */
@media (max-width: 767px) {
  .vm-hero {
    padding: 48px var(--spacing-margin-mobile) 64px;
  }

  .vm-footer {
    padding: 48px var(--spacing-margin-mobile);
  }
}

@media (max-width: 639px) {
  #specialists-grid {
    grid-template-columns: 1fr !important;
  }

  .md\:p-10 {
    padding: 1.5rem !important;
  }
}

/* ── 16. Selection ───────────────────────────────────────────────── */
::selection {
  background: var(--color-primary-container);
  color: #ffffff;
}

/* ── 17. Focus Visible (Accesibilidad) ───────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── 18. Scrollbar personalizada (webkit) ────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-surface-container-low);
}

::-webkit-scrollbar-thumb {
  background: var(--color-outline-variant);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-outline);
}