/* ==========================================================================
   PelviFortis - Estilo de Diseño: Moderno, Volumétrico y Lacónico
   Paleta: Slate (#0F172A) / Teal Vital (#0D9488) / Cerulean (#0284C7) / Canvas (#F8FAFC)
   Prefijo único: .pf-
   ========================================================================== */

:root {
  --pf-primary: #0F172A;
  --pf-primary-light: #1E293B;
  --pf-accent: #0D9488;
  --pf-accent-hover: #0F766E;
  --pf-accent-light: #CCFBF1;
  --pf-accent-soft: rgba(13, 148, 136, 0.08);
  --pf-secondary: #0284C7;
  --pf-secondary-light: #E0F2FE;
  
  --pf-text-dark: #0F172A;
  --pf-text-main: #334155;
  --pf-text-muted: #64748B;
  --pf-text-light: #94A3B8;
  
  --pf-bg-body: #F8FAFC;
  --pf-bg-surface: #FFFFFF;
  --pf-bg-subtle: #F1F5F9;
  --pf-bg-alt: #F8FAFD;
  
  --pf-border: #E2E8F0;
  --pf-border-subtle: rgba(226, 232, 240, 0.8);
  --pf-border-accent: rgba(13, 148, 136, 0.3);
  
  /* Volumetric Depth & Layered Shadows */
  --pf-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --pf-shadow-sm: 0 2px 5px -1px rgba(15, 23, 42, 0.06), 0 1px 3px -1px rgba(15, 23, 42, 0.04);
  --pf-shadow-md: 0 8px 18px -4px rgba(15, 23, 42, 0.08), 0 3px 6px -2px rgba(15, 23, 42, 0.04);
  --pf-shadow-lg: 0 18px 32px -8px rgba(15, 23, 42, 0.10), 0 6px 12px -3px rgba(15, 23, 42, 0.04);
  --pf-shadow-volumetric: 0 20px 40px -12px rgba(15, 23, 42, 0.12), 0 1px 2px 0 rgba(15, 23, 42, 0.04), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --pf-shadow-glow: 0 10px 25px -5px rgba(13, 148, 136, 0.35);
  --pf-shadow-inset: inset 0 2px 4px rgba(15, 23, 42, 0.05);

  --pf-radius-sm: 8px;
  --pf-radius-md: 14px;
  --pf-radius-lg: 20px;
  --pf-radius-xl: 28px;
  --pf-radius-pill: 9999px;
  
  --pf-transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --pf-container-max: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  color: var(--pf-text-main);
  background-color: var(--pf-bg-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--pf-accent);
  text-decoration: none;
  transition: var(--pf-transition);
}

a:hover {
  color: var(--pf-accent-hover);
}

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

/* ==========================================================================
   Layout Containers & Utilities
   ========================================================================== */
.pf-container {
  width: 100%;
  max-width: var(--pf-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.pf-section {
  padding-top: 88px;
  padding-bottom: 88px;
  position: relative;
}

.pf-section-subtle {
  background-color: var(--pf-bg-subtle);
  background-image: radial-gradient(var(--pf-border) 1px, transparent 1px);
  background-size: 24px 24px;
}

.pf-section-alt {
  background-color: var(--pf-bg-alt);
}

.pf-section-dark {
  background-color: var(--pf-primary);
  color: #FFFFFF;
}

.pf-text-center {
  text-align: center;
}

.pf-header-center {
  max-width: 720px;
  margin: 0 auto 56px auto;
  text-align: center;
}

/* ==========================================================================
   Typography & Volumetric Badges
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--pf-text-dark);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.pf-title-hero {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.pf-title-hero span {
  background: linear-gradient(135deg, var(--pf-accent) 0%, var(--pf-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pf-title-section {
  font-size: clamp(1.85rem, 3vw, 2.5rem);
  margin-bottom: 16px;
}

.pf-lead {
  font-size: 1.15rem;
  color: var(--pf-text-muted);
  line-height: 1.7;
}

.pf-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--pf-radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--pf-bg-surface);
  color: var(--pf-accent);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-xs);
  margin-bottom: 16px;
}

.pf-badge-accent {
  background: var(--pf-accent-soft);
  color: var(--pf-accent);
  border-color: var(--pf-border-accent);
}

/* ==========================================================================
   Volumetric Cards & Tactile Surfaces
   ========================================================================== */
.pf-card {
  background: var(--pf-bg-surface);
  border-radius: var(--pf-radius-lg);
  border: 1px solid var(--pf-border-subtle);
  box-shadow: var(--pf-shadow-md);
  padding: 36px 32px;
  transition: var(--pf-transition);
  position: relative;
  overflow: hidden;
}

.pf-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.9) 50%, rgba(255,255,255,0) 100%);
  pointer-events: none;
}

.pf-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--pf-shadow-volumetric);
  border-color: var(--pf-border);
}

.pf-card-interactive {
  cursor: pointer;
}

/* ==========================================================================
   Buttons with Tactile 3D Presence
   ========================================================================== */
.pf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--pf-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--pf-transition);
  text-align: center;
  line-height: 1;
  position: relative;
  user-select: none;
}

.pf-btn-primary {
  background: linear-gradient(180deg, #14B8A6 0%, #0D9488 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.pf-btn-primary:hover {
  background: linear-gradient(180deg, #0D9488 0%, #0F766E 100%);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(13, 148, 136, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.pf-btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 6px rgba(13, 148, 136, 0.3);
}

.pf-btn-outline {
  background: var(--pf-bg-surface);
  color: var(--pf-text-dark);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-xs);
}

.pf-btn-outline:hover {
  background: var(--pf-bg-subtle);
  border-color: var(--pf-text-muted);
  color: var(--pf-text-dark);
  transform: translateY(-2px);
  box-shadow: var(--pf-shadow-sm);
}

.pf-btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
  border-radius: var(--pf-radius-sm);
}

.pf-btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
  border-radius: var(--pf-radius-md);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.pf-topbar {
  background: var(--pf-primary);
  color: #E2E8F0;
  font-size: 0.82rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pf-topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.pf-topbar-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pf-topbar-item svg {
  width: 15px;
  height: 15px;
  color: #2DD4BF;
  flex-shrink: 0;
}

.pf-lang-switch {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--pf-radius-pill);
  padding: 2px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.pf-lang-btn {
  background: transparent;
  border: none;
  color: #94A3B8;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--pf-radius-pill);
  cursor: pointer;
  transition: var(--pf-transition);
}

.pf-lang-btn.active {
  background: #FFFFFF;
  color: var(--pf-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.pf-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--pf-border);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.04);
  transition: var(--pf-transition);
}

.pf-navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.pf-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.pf-brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--pf-primary) 0%, var(--pf-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.25);
  color: #FFFFFF;
  flex-shrink: 0;
}

.pf-brand-logo svg {
  width: 24px;
  height: 24px;
}

.pf-brand-text {
  display: flex;
  flex-direction: column;
}

.pf-brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--pf-primary);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.pf-brand-sub {
  font-size: 0.72rem;
  color: var(--pf-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pf-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.pf-nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--pf-text-main);
  padding: 6px 4px;
  position: relative;
  transition: var(--pf-transition);
}

.pf-nav-links a:hover,
.pf-nav-links a.active {
  color: var(--pf-accent);
}

.pf-nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--pf-accent);
  border-radius: 2px;
}

.pf-nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pf-burger {
  display: none;
  background: transparent;
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-sm);
  padding: 8px;
  cursor: pointer;
  color: var(--pf-text-dark);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.pf-hero {
  padding-top: 72px;
  padding-bottom: 84px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--pf-bg-body) 100%);
  position: relative;
  overflow: hidden;
}

.pf-hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, rgba(2, 132, 199, 0.03) 50%, transparent 70%);
  pointer-events: none;
}

.pf-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
}

.pf-hero-content {
  position: relative;
  z-index: 2;
}

.pf-hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.pf-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--pf-border);
}

.pf-stat-item {
  display: flex;
  flex-direction: column;
}

.pf-stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--pf-primary);
  line-height: 1.1;
}

.pf-stat-label {
  font-size: 0.8rem;
  color: var(--pf-text-muted);
  margin-top: 4px;
}

.pf-hero-card {
  position: relative;
}

.pf-hero-img-wrap {
  border-radius: var(--pf-radius-xl);
  overflow: hidden;
  box-shadow: var(--pf-shadow-volumetric);
  border: 4px solid #FFFFFF;
  position: relative;
}

.pf-hero-floating-badge {
  position: absolute;
  bottom: 24px;
  left: -20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  padding: 16px 20px;
  border-radius: var(--pf-radius-lg);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 280px;
}

.pf-hero-floating-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--pf-accent-light);
  color: var(--pf-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
   Features & 3D Tactile Cards
   ========================================================================== */
.pf-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.pf-feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--pf-radius-md);
  background: linear-gradient(135deg, var(--pf-accent-soft) 0%, rgba(2, 132, 199, 0.12) 100%);
  color: var(--pf-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid var(--pf-border-accent);
}

.pf-feature-icon svg {
  width: 28px;
  height: 28px;
}

.pf-feature-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.pf-feature-desc {
  font-size: 0.95rem;
  color: var(--pf-text-muted);
}

/* ==========================================================================
   Methodology & Visual Anatomy / Pelvic Balance
   ========================================================================== */
.pf-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}

.pf-diagram-box {
  background: #FFFFFF;
  border-radius: var(--pf-radius-xl);
  padding: 32px;
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-volumetric);
  text-align: center;
}

.pf-step-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.pf-step-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #FFFFFF;
  padding: 18px 20px;
  border-radius: var(--pf-radius-md);
  border: 1px solid var(--pf-border-subtle);
  box-shadow: var(--pf-shadow-xs);
  transition: var(--pf-transition);
}

.pf-step-item:hover {
  border-color: var(--pf-accent);
  transform: translateX(4px);
  box-shadow: var(--pf-shadow-sm);
}

.pf-step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--pf-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   Interactive Assessment Teaser & Full Component
   ========================================================================== */
.pf-quiz-container {
  max-width: 760px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: var(--pf-radius-xl);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-volumetric);
  padding: 44px 40px;
  position: relative;
}

.pf-quiz-progress {
  height: 6px;
  background: var(--pf-bg-subtle);
  border-radius: var(--pf-radius-pill);
  margin-bottom: 32px;
  overflow: hidden;
}

.pf-quiz-progress-bar {
  height: 100%;
  width: 25%;
  background: linear-gradient(90deg, var(--pf-accent) 0%, var(--pf-secondary) 100%);
  border-radius: var(--pf-radius-pill);
  transition: width 0.35s ease;
}

.pf-quiz-question {
  display: none;
}

.pf-quiz-question.active {
  display: block;
  animation: pfFadeIn 0.35s ease;
}

@keyframes pfFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.pf-quiz-title {
  font-size: 1.35rem;
  margin-bottom: 24px;
}

.pf-quiz-options {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.pf-quiz-option {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--pf-radius-md);
  border: 1px solid var(--pf-border);
  background: var(--pf-bg-body);
  cursor: pointer;
  transition: var(--pf-transition);
  font-weight: 500;
}

.pf-quiz-option:hover {
  background: #FFFFFF;
  border-color: var(--pf-accent);
  box-shadow: var(--pf-shadow-sm);
}

.pf-quiz-option.selected {
  background: var(--pf-accent-soft);
  border-color: var(--pf-accent);
  color: var(--pf-accent-hover);
  box-shadow: 0 0 0 1px var(--pf-accent);
}

.pf-quiz-radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--pf-border);
  position: relative;
  flex-shrink: 0;
  transition: var(--pf-transition);
}

.pf-quiz-option.selected .pf-quiz-radio {
  border-color: var(--pf-accent);
  background: var(--pf-accent);
  box-shadow: inset 0 0 0 4px #FFFFFF;
}

.pf-quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pf-quiz-result {
  display: none;
  text-align: center;
}

.pf-quiz-result.active {
  display: block;
  animation: pfFadeIn 0.4s ease;
}

.pf-result-score-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--pf-accent-soft);
  color: var(--pf-accent);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 20px;
  border: 3px solid var(--pf-accent);
}

/* ==========================================================================
   Expert Presentation & Diplomas
   ========================================================================== */
.pf-expert-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.pf-expert-photo-wrap {
  position: relative;
}

.pf-expert-img {
  border-radius: var(--pf-radius-xl);
  box-shadow: var(--pf-shadow-volumetric);
  border: 4px solid #FFFFFF;
}

.pf-certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.pf-cert-item {
  background: #FFFFFF;
  border-radius: var(--pf-radius-md);
  border: 1px solid var(--pf-border);
  padding: 14px;
  box-shadow: var(--pf-shadow-sm);
  transition: var(--pf-transition);
  cursor: pointer;
  text-align: center;
}

.pf-cert-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--pf-shadow-md);
  border-color: var(--pf-accent);
}

.pf-cert-thumb {
  height: 180px;
  border-radius: var(--pf-radius-sm);
  overflow: hidden;
  margin-bottom: 12px;
  background: var(--pf-bg-subtle);
  border: 1px solid var(--pf-border);
}

.pf-cert-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pf-cert-caption {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pf-text-dark);
}

/* ==========================================================================
   Services & Offer Cards (services.php)
   ========================================================================== */
.pf-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.pf-service-card {
  background: #FFFFFF;
  border-radius: var(--pf-radius-xl);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-md);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  transition: var(--pf-transition);
  position: relative;
}

.pf-service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--pf-shadow-volumetric);
}

.pf-service-featured {
  border: 2px solid var(--pf-accent);
  box-shadow: 0 16px 36px -8px rgba(13, 148, 136, 0.22);
  background: linear-gradient(180deg, #FFFFFF 0%, #F0FDFA 100%);
}

.pf-ribbon {
  position: absolute;
  top: 18px;
  right: 18px;
  background: var(--pf-accent);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--pf-radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pf-service-price-box {
  margin: 24px 0;
  padding: 16px 0;
  border-top: 1px solid var(--pf-border);
  border-bottom: 1px solid var(--pf-border);
}

.pf-price-val {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--pf-primary);
  line-height: 1;
}

.pf-price-currency {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pf-text-muted);
  margin-left: 4px;
}

.pf-price-original {
  font-size: 1rem;
  text-decoration: line-through;
  color: var(--pf-text-light);
  margin-left: 8px;
}

.pf-service-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.pf-service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.92rem;
  color: var(--pf-text-main);
}

.pf-service-features li svg {
  width: 18px;
  height: 18px;
  color: var(--pf-accent);
  flex-shrink: 0;
}

.pf-service-img-preview {
  height: 200px;
  border-radius: var(--pf-radius-md);
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--pf-bg-subtle);
  border: 1px solid var(--pf-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pf-service-img-preview img {
  max-height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   Blog Cards & Single Article
   ========================================================================== */
.pf-blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.pf-blog-card {
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border-radius: var(--pf-radius-lg);
  border: 1px solid var(--pf-border-subtle);
  box-shadow: var(--pf-shadow-sm);
  overflow: hidden;
  transition: var(--pf-transition);
  text-decoration: none;
  color: inherit;
}

.pf-blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--pf-shadow-volumetric);
  border-color: var(--pf-border);
}

.pf-blog-thumb {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.pf-blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.pf-blog-card:hover .pf-blog-thumb img {
  transform: scale(1.05);
}

.pf-blog-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.pf-blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--pf-text-muted);
  margin-bottom: 12px;
}

.pf-blog-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--pf-text-dark);
  line-height: 1.35;
}

.pf-blog-excerpt {
  font-size: 0.92rem;
  color: var(--pf-text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.pf-blog-readmore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--pf-accent);
}

.pf-article-layout {
  max-width: 820px;
  margin: 0 auto;
  background: #FFFFFF;
  padding: 48px;
  border-radius: var(--pf-radius-xl);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-volumetric);
}

.pf-article-header {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--pf-border);
  padding-bottom: 28px;
}

.pf-article-img-wrap {
  border-radius: var(--pf-radius-lg);
  overflow: hidden;
  margin-bottom: 36px;
  box-shadow: var(--pf-shadow-md);
}

.pf-article-content {
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--pf-text-main);
}

.pf-article-content p {
  margin-bottom: 24px;
}

.pf-article-content h2 {
  font-size: 1.6rem;
  margin-top: 40px;
  margin-bottom: 18px;
}

.pf-article-content h3 {
  font-size: 1.3rem;
  margin-top: 32px;
  margin-bottom: 14px;
}

.pf-article-content ul, 
.pf-article-content ol {
  margin-left: 24px;
  margin-bottom: 24px;
}

.pf-article-content li {
  margin-bottom: 10px;
}

.pf-callout {
  background: var(--pf-accent-soft);
  border-left: 4px solid var(--pf-accent);
  padding: 20px 24px;
  border-radius: 0 var(--pf-radius-md) var(--pf-radius-md) 0;
  margin: 32px 0;
  font-size: 0.98rem;
}

/* ==========================================================================
   Order & Checkout Form Styling
   ========================================================================== */
.pf-order-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.pf-form-group {
  margin-bottom: 20px;
}

.pf-form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--pf-text-dark);
  margin-bottom: 8px;
}

.pf-form-input,
.pf-form-select,
.pf-form-textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--pf-radius-md);
  border: 1px solid var(--pf-border);
  background: #FFFFFF;
  font-size: 0.95rem;
  color: var(--pf-text-dark);
  transition: var(--pf-transition);
  font-family: inherit;
}

.pf-form-input:focus,
.pf-form-select:focus,
.pf-form-textarea:focus {
  outline: none;
  border-color: var(--pf-accent);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.pf-order-summary {
  background: #FFFFFF;
  border-radius: var(--pf-radius-xl);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-volumetric);
  padding: 36px 30px;
}

.pf-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--pf-border-subtle);
  font-size: 0.95rem;
}

.pf-summary-row.total {
  border-bottom: none;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--pf-primary);
  padding-top: 18px;
}

/* ==========================================================================
   Legal Pages (Privacy, Terms, Cookies, Refund, Shipping)
   ========================================================================== */
.pf-legal-box {
  background: #FFFFFF;
  border-radius: var(--pf-radius-xl);
  border: 1px solid var(--pf-border);
  box-shadow: var(--pf-shadow-volumetric);
  padding: 48px 44px;
}

.pf-legal-box h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.pf-legal-box h2 {
  font-size: 1.45rem;
  margin-top: 36px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--pf-border);
}

.pf-legal-box p,
.pf-legal-box li {
  font-size: 0.96rem;
  color: var(--pf-text-main);
  line-height: 1.75;
}

.pf-legal-box p {
  margin-bottom: 16px;
}

.pf-legal-box ul,
.pf-legal-box ol {
  margin-left: 24px;
  margin-bottom: 20px;
}

.pf-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
}

.pf-legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.pf-legal-table th,
.pf-legal-table td {
  padding: 12px 16px;
  border: 1px solid var(--pf-border);
  text-align: left;
}

.pf-legal-table th {
  background: var(--pf-bg-subtle);
  font-weight: 700;
  color: var(--pf-text-dark);
}

/* ==========================================================================
   Footer Component (Strict Mandatory on Every Page)
   ========================================================================== */
.pf-footer {
  background: var(--pf-primary);
  color: #94A3B8;
  padding-top: 72px;
  padding-bottom: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.pf-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}

.pf-footer-brand {
  display: flex;
  flex-direction: column;
}

.pf-footer-brand-title {
  color: #FFFFFF;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pf-footer-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.pf-footer-col-title {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.pf-footer-links {
  list-style: none;
}

.pf-footer-links li {
  margin-bottom: 10px;
}

.pf-footer-links a {
  color: #94A3B8;
  font-size: 0.88rem;
  transition: var(--pf-transition);
}

.pf-footer-links a:hover {
  color: #2DD4BF;
  padding-left: 4px;
}

.pf-footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  line-height: 1.5;
}

.pf-footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: #2DD4BF;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Mandatory Google Ads Disclaimer in Footer */
.pf-footer-disclaimer {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--pf-radius-md);
  padding: 24px;
  margin-bottom: 36px;
  font-size: 0.82rem;
  line-height: 1.65;
  color: #94A3B8;
}

.pf-footer-disclaimer-title {
  color: #E2E8F0;
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pf-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
}

/* ==========================================================================
   Modal for Certificate Previews
   ========================================================================== */
.pf-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pf-modal.active {
  display: flex;
}

.pf-modal-content {
  background: #FFFFFF;
  border-radius: var(--pf-radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  position: relative;
  padding: 24px;
  box-shadow: var(--pf-shadow-volumetric);
}

.pf-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--pf-bg-subtle);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Responsive Adaptations (320px - 1440px)
   ========================================================================== */
@media (max-width: 1024px) {
  .pf-hero-grid,
  .pf-expert-grid,
  .pf-split-grid,
  .pf-order-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .pf-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .pf-section {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .pf-nav-links {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--pf-border);
    box-shadow: var(--pf-shadow-lg);
    gap: 16px;
  }

  .pf-nav-links.active {
    display: flex;
  }

  .pf-burger {
    display: block;
  }

  .pf-hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .pf-footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pf-article-layout,
  .pf-legal-box,
  .pf-quiz-container {
    padding: 28px 20px;
  }

  .pf-certs-grid {
    grid-template-columns: 1fr;
  }
}