/* ===============================================
   Glassmorphism Lite Toolkit
   =============================================== */
:root {
  --glass-bg-image: url('../media/images/dark_mode.jpg');
  --glass-bg-color: #0f172a;
  --glass-overlay: rgba(15, 23, 42, 0.55);
  --glass-surface-bg: rgba(255, 255, 255, 0.05);
  --glass-surface-border: rgba(255, 255, 255, 0.25);
  --glass-surface-shadow: 0 18px 40px rgba(15, 23, 42, 0.45);
  --glass-surface-blur: blur(24px);
  --glass-surface-radius: 20px;
  --glass-hover-bg: rgba(255, 255, 255, 0.22);
  --glass-hover-shadow: 0 28px 60px rgba(15, 23, 42, 0.5);
  --glass-text-strong: #ffffff;
  --glass-text-soft: rgba(255, 255, 255, 0.85);
  --glass-text-muted: rgba(255, 255, 255, 0.65);
  --glass-color-success: #3ddc97;
  --glass-color-info: #3ab4f2;
  --glass-color-warning: #f9ad3d;
  --glass-color-danger: #ff6b6b;
  --glass-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --glass-bg-image: url('../media/images/light_mode.jpg');
  --glass-bg-color: #f8f9fa;
  --glass-overlay: rgba(255, 255, 255, 0.35);
  --glass-surface-bg: rgba(255, 255, 255, 0.08);
  --glass-surface-border: rgba(255, 255, 255, 0.8);
  --glass-surface-shadow: 0 16px 36px rgba(76, 104, 160, 0.25);
  --glass-hover-bg: rgba(255, 255, 255, 0.72);
  --glass-hover-shadow: 0 24px 50px rgba(76, 104, 160, 0.28);
  --glass-text-strong: #1c1f2b;
  --glass-text-soft: rgba(28, 31, 43, 0.75);
  --glass-text-muted: rgba(28, 31, 43, 0.6);
}

/* ===============================================
   Background Surface
   =============================================== */
.background-image {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: -1;
  pointer-events: none;
  background-color: var(--glass-bg-color);
  background-image: var(--glass-bg-image);
  background-position: center center;
  background-repeat: no-repeat;
  /* Contain para evitar estiramientos, cover solo si la imagen es muy grande */
  background-size: cover;
  /* NO usar transform para no afectar el comportamiento fixed */
  transform: none !important;
  filter: none;
  transition: background-color 0.4s ease, background-image 0.6s ease;
}

/* Ajustes responsive para evitar estiramientos en móviles */
@media (max-width: 768px) {
  .background-image {
    background-size: cover;
    /* En móviles iOS, fixed puede causar problemas */
    background-attachment: scroll;
  }
}

/* Para pantallas muy verticales (móviles en portrait) */
@media (max-aspect-ratio: 9/16) {
  .background-image {
    background-size: auto 100vh;
    background-position: center center;
  }
}

/* Para pantallas muy horizontales (ultrawide) */
@media (min-aspect-ratio: 21/9) {
  .background-image {
    background-size: 100vw auto;
    background-position: center center;
  }
}

.background-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--glass-overlay);
  opacity: 0.85;
  transition: background 0.4s ease;
}

html.theme-transitioning .background-image {
  animation: themeBackdropShift 0.65s ease forwards;
}

html.theme-transitioning .background-image::after {
  animation: themeOverlayPulse 0.65s ease forwards;
}

@keyframes themeBackdropShift {
  0% {
    filter: saturate(0.85) brightness(0.9);
    transform: scale(1);
  }
  55% {
    filter: saturate(1.08) brightness(1.05);
    transform: scale(1.02);
  }
  100% {
    filter: none;
    transform: scale(1);
  }
}

@keyframes themeOverlayPulse {
  0% {
    opacity: 0.85;
  }
  45% {
    opacity: 1;
  }
  100% {
    opacity: 0.85;
  }
}

/* ===============================================
   Typography Helpers
   =============================================== */
.fw-medium-enhanced { font-weight: 550 !important; }
.fw-semibold-enhanced { font-weight: 600 !important; }
.fw-bold-enhanced { font-weight: 700 !important; }
.fw-extra-bold { font-weight: 800 !important; }
.fw-black { font-weight: 900 !important; }

.letter-spacing-tight { letter-spacing: -0.03em !important; }
.letter-spacing-normal { letter-spacing: 0 !important; }
.letter-spacing-wide { letter-spacing: 0.05em !important; }
.letter-spacing-wider { letter-spacing: 0.1em !important; }

.text-primary-enhanced {
  color: var(--glass-text-strong) !important;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(15, 23, 42, 0.35);
}

.text-secondary-enhanced {
  color: var(--glass-text-soft) !important;
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(15, 23, 42, 0.25);
}

.text-accent-enhanced {
  color: var(--glass-text-strong) !important;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(15, 23, 42, 0.45);
}

.text-muted-enhanced {
  color: var(--glass-text-muted) !important;
  font-weight: 400;
}

.text-white-enhanced {
  color: var(--text-strong) !important;
  font-weight: 600;
  text-shadow: 0 2px 4px rgba(15, 23, 42, 0.5);
}

.text-white-50-enhanced {
  color: var(--text-muted) !important;
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(15, 23, 42, 0.4);
}

.text-success-enhanced { color: var(--glass-color-success) !important; font-weight: 600; }
.text-info-enhanced { color: var(--glass-color-info) !important; font-weight: 600; }
.text-warning-enhanced { color: var(--glass-color-warning) !important; font-weight: 600; }
.text-danger-enhanced { color: var(--glass-color-danger) !important; font-weight: 600; }

[data-theme="light"] .text-primary-enhanced,
[data-theme="light"] .text-secondary-enhanced,
[data-theme="light"] .text-accent-enhanced,
[data-theme="light"] .text-muted-enhanced,
[data-theme="light"] .text-white-enhanced,
[data-theme="light"] .text-white-50-enhanced {
  text-shadow: none;
}

/* ===============================================
   Icon System
   =============================================== */
.bi {
  color: var(--glass-text-strong);
  filter: drop-shadow(0 1px 2px rgba(15, 23, 42, 0.3));
  transition: transform var(--glass-transition), color var(--glass-transition), filter var(--glass-transition);
}

.icon-2xs { font-size: 0.625rem; }
.icon-xs { font-size: 0.75rem; }
.icon-sm { font-size: 0.875rem; }
.icon-md, .icon-base { font-size: 1rem; }
.icon-lg { font-size: 1.25rem; }
.icon-xl { font-size: 1.5rem; }
.icon-xxl { font-size: 2.25rem; }
.icon-2xl { font-size: 1.75rem; }
.icon-3xl { font-size: 2rem; }
.icon-4xl { font-size: 2.5rem; }
.icon-5xl { font-size: 3rem; }

.icon-hover:hover {
  transform: translateY(-2px) scale(1.05);
  filter: drop-shadow(0 6px 16px rgba(15, 23, 42, 0.35));
}

.icon-primary { color: var(--glass-text-strong) !important; }
.icon-secondary { color: var(--glass-text-soft) !important; }
.icon-accent { color: #ffd700 !important; }
.icon-success { color: var(--glass-color-success) !important; }
.icon-danger { color: var(--glass-color-danger) !important; }
.icon-warning { color: var(--glass-color-warning) !important; }
.icon-info { color: var(--glass-color-info) !important; }

.icon-glow {
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.55));
  animation: iconGlow 3s ease-in-out infinite alternate;
}

@keyframes iconGlow {
  from { filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.45)); }
  to { filter: drop-shadow(0 0 14px rgba(255, 255, 255, 0.75)); }
}

[data-theme="light"] .bi {
  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.65));
}

[data-theme="light"] .icon-hover:hover {
  filter: drop-shadow(0 6px 16px rgba(76, 104, 160, 0.25));
}

/* ===============================================
   Core Glass Surfaces
   =============================================== */
:where(.glass, .glass-card, .glass-gradient, .glass-button, .glass-input, .section-header-glass) {
  background: var(--glass-surface-bg);
  border: 1px solid var(--glass-surface-border);
  border-radius: var(--glass-surface-radius);
  box-shadow: var(--glass-surface-shadow);
  color: var(--glass-text-strong);
  backdrop-filter: var(--glass-surface-blur);
  -webkit-backdrop-filter: var(--glass-surface-blur);
  transition: var(--glass-transition);
}

.glass-card {
  position: relative;
  overflow: hidden;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 120%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  transition: transform var(--glass-transition);
}

.glass-card:hover {
  background: var(--glass-hover-bg);
  box-shadow: var(--glass-hover-shadow);
  transform: translateY(-4px);
}

.glass-card:hover::before {
  transform: translateX(180%);
}

.glass-gradient::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 60%);
  opacity: 0.6;
  pointer-events: none;
}

.glass-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.glass-button::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.22) 50%, transparent 100%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.glass-button:hover {
  background: var(--glass-hover-bg);
  box-shadow: var(--glass-hover-shadow);
  transform: translateY(-2px);
}

.glass-button:hover::after {
  transform: translateX(120%);
}

.glass-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  color: var(--glass-text-strong);
  box-shadow: inset 0 2px 6px rgba(15, 23, 42, 0.2);
}

.glass-input:focus {
  background: var(--glass-hover-bg);
  border-color: rgba(255, 255, 255, 0.4);
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12), inset 0 2px 6px rgba(15, 23, 42, 0.25);
}

.glass-input::placeholder {
  color: var(--glass-text-muted);
}

/* ===============================================
   Section Layouts & Components
   =============================================== */
.hero-section {
  padding: 3rem 0 4rem;
  position: relative;
}

.hero-card {
  padding: 2.5rem;
  border-radius: 24px;
}

.hero-description {
  max-width: 620px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
  height: 100%;
  transition: var(--glass-transition);
}

.service-card:hover {
  transform: translateY(-6px);
}

.service-card .service-icon-wrapper {
  display: grid;
  place-items: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  transition: var(--glass-transition);
}

.service-card:hover .service-icon-wrapper {
  transform: scale(1.08);
}

.service-card .service-description {
  color: var(--glass-text-soft);
  line-height: 1.7;
}

.glass-card-enhanced {
  padding: 2.5rem;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.45);
}

.profile-card-backdrop,
.hero-card::after,
.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent 70%);
  opacity: 0.55;
  pointer-events: none;
}

.tagline-container .badge {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--glass-text-strong);
}

.stat-card-pro {
  border-radius: 18px;
  padding: 1.5rem;
  transition: var(--glass-transition);
}

.stat-card-pro:hover {
  transform: translateY(-4px);
  background: var(--glass-hover-bg);
}

.stat-icon-wrapper {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  margin: 0 auto;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.hero-actions-pro .btn {
  border-radius: 14px;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.hero-actions-pro .btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--glass-hover-shadow);
}

.section-header-glass {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.6rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.section-header-glass .icon-wrapper {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.section-header-glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.15);
  opacity: 0;
  transition: opacity var(--glass-transition);
}

.section-header-glass:hover::after {
  opacity: 1;
}

.footer-glass {
  background: rgba(0, 0, 0, 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: var(--glass-text-soft);
}

.footer-glass a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-glass a:hover {
  color: var(--glass-text-strong);
}

.social-link:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.18);
}

/* ===============================================
   Responsive Design - Mobile First
   =============================================== */

/* Base mobile styles (320px and up) */
@media (min-width: 320px) {
  .glass-card,
  .glass-card-enhanced,
  .hero-card {
    padding: 1.25rem;
    margin-bottom: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.75rem;
  }

  .service-card {
    gap: 0.875rem;
    padding: 1.25rem;
  }

  .service-card .service-icon-wrapper {
    width: 64px;
    height: 64px;
  }

  .section-header-glass {
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    flex-direction: column;
    text-align: center;
    width: 100%;
  }

  .section-header-glass .icon-wrapper {
    width: 40px;
    height: 40px;
  }

  .stat-card-pro {
    padding: 1.25rem;
  }

  .stat-icon-wrapper {
    width: 50px;
    height: 50px;
  }

  .hero-actions-pro .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
  }
}

/* Small devices (576px and up) */
@media (min-width: 576px) {
  .glass-card,
  .glass-card-enhanced,
  .hero-card {
    padding: 1.5rem;
    margin-bottom: 1.25rem;
  }

  .hero-actions {
    flex-direction: row;
    justify-content: center;
    gap: 1rem;
  }

  .service-card {
    gap: 1rem;
    padding: 1.5rem;
  }

  .service-card .service-icon-wrapper {
    width: 72px;
    height: 72px;
  }

  .section-header-glass {
    flex-direction: row;
    justify-content: center;
    width: auto;
  }

  .stat-card-pro {
    padding: 1.5rem;
  }

  .stat-icon-wrapper {
    width: 56px;
    height: 56px;
  }

  .hero-actions-pro .btn {
    padding: 0.8rem 1.5rem;
  }
}

/* Medium devices - Tablets (768px and up) */
@media (min-width: 768px) {
  .hero-section {
    padding: 2.5rem 0 3rem;
  }

  .glass-card,
  .glass-card-enhanced,
  .hero-card {
    padding: 1.75rem;
    margin-bottom: 1.5rem;
  }

  .service-card {
    gap: 1.25rem;
    padding: 1.75rem;
  }

  .service-card .service-icon-wrapper {
    width: 80px;
    height: 80px;
  }

  .section-header-glass {
    padding: 0.9rem 1.6rem;
    margin-bottom: 1.5rem;
  }

  .section-header-glass .icon-wrapper {
    width: 48px;
    height: 48px;
  }

  .stat-card-pro {
    padding: 1.75rem;
  }

  .stat-icon-wrapper {
    width: 60px;
    height: 60px;
  }

  .hero-actions-pro .btn {
    padding: 0.85rem 1.75rem;
  }
}

/* Large devices - Small laptops (992px and up) */
@media (min-width: 992px) {
  .hero-section {
    padding: 3rem 0 4rem;
  }

  .glass-card,
  .glass-card-enhanced,
  .hero-card {
    padding: 2rem;
  }

  .service-card {
    height: 100%;
  }

  .hero-actions {
    justify-content: flex-start;
  }
}

/* Extra large devices - Desktops (1200px and up) */
@media (min-width: 1200px) {
  .glass-card,
  .glass-card-enhanced,
  .hero-card {
    padding: 2.5rem;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .glass-button,
  .btn-profile-action,
  .hero-actions-pro .btn {
    min-height: 48px;
    padding: 0.875rem 1.25rem;
  }

  .glass-card:hover,
  .service-card:hover,
  .glass-button:hover,
  .btn-profile-action:hover {
    transform: none;
  }

  .social-link:hover {
    transform: none;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .glass-card,
  .service-card,
  .glass-button,
  .btn-profile-action,
  .social-link,
  .icon-hover {
    transition: none;
  }

  .glass-card:hover,
  .service-card:hover,
  .glass-button:hover,
  .btn-profile-action:hover {
    transform: none;
  }

  .background-image {
    transition: none;
  }

  html.theme-transitioning .background-image,
  html.theme-transitioning .background-image::after {
    animation: none;
  }
}

/* ===============================================
   Enhanced Profile Action Buttons
   =============================================== */
.profile-action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.btn-profile-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  border: 1px solid;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  min-width: 160px;
}

.btn-profile-action::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-profile-action:hover::before {
  opacity: 1;
}

.btn-profile-action i {
  font-size: 1rem;
  transition: transform 0.3s ease;
}

.btn-profile-action:hover i {
  transform: scale(1.1);
}

/* Email Button - Light/Professional */
.btn-profile-email {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text-strong);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-profile-email:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--text-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* HCPE Button - Info/Accent */
.btn-profile-hcpe {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 197, 253, 0.1));
  border-color: rgba(59, 130, 246, 0.3);
  color: #3b82f6;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.btn-profile-hcpe:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(147, 197, 253, 0.15));
  border-color: rgba(59, 130, 246, 0.5);
  color: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.25);
}

/* Light theme adjustments */
[data-theme="light"] .btn-profile-email {
  background: rgba(255, 255, 255, 0.4);
  border-color: rgba(0, 0, 0, 0.1);
  color: #1f2937;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .btn-profile-email:hover {
  background: rgba(255, 255, 255, 1);
  border-color: rgba(0, 0, 0, 0.2);
  color: #111827;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .btn-profile-hcpe {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 197, 253, 0.1));
  border-color: rgba(59, 130, 246, 0.3);
  color: #3b82f6;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .btn-profile-hcpe:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(147, 197, 253, 0.15));
  border-color: rgba(59, 130, 246, 0.5);
  color: #2563eb;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

/* Mobile responsive */
@media (max-width: 576px) {
  .profile-action-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-profile-action {
    min-width: auto;
    width: 100%;
    padding: 0.875rem 1rem;
  }
}