/* ========================================
   ENRICO GRANDI - BIOLOGO NUTRIZIONISTA
   Stile Mediterraneo Elegante
   ======================================== */

/* --- DESIGN TOKENS & VARIABLES --- */
:root {
  /* Color Palette - Vincoli rispettati */
  --bg-main: #0d331c;
  --text-main: #b6b1a9;
  
  /* Palette Mediterranea Calda */
  --earth-brown: #8B4513;
  --olive-green: #6B8E23;
  --sunset-orange: #D2691E;
  --warm-beige: #F5F5DC;
  --sand-cream: #F4E4BC;
  --terracotta: #E2725B;
  --sage-green: #9CAF88;
  --golden-yellow: #FFD700;
  
  /* Gradients */
  --gradient-warm: linear-gradient(135deg, var(--earth-brown) 0%, var(--olive-green) 100%);
  --gradient-sunset: linear-gradient(135deg, var(--sunset-orange) 0%, var(--terracotta) 100%);
  --gradient-earth: linear-gradient(135deg, var(--bg-main) 0%, var(--olive-green) 100%);
  
  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: clamp(2.5rem, 6vw, 3.5rem);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --container-max-width: 1200px;
  --container-padding: clamp(1rem, 4vw, 2rem);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  background: var(--bg-main);
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  background: var(--golden-yellow);
  color: #1a1a1a;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 2001;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-main);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--text-main);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* --- LAYOUT UTILITIES --- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

/* Offset per ancore sotto navbar fissa */
section[id] {
  scroll-margin-top: 96px;
}

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

/* --- MEDITERRANEAN DECORATIVE ELEMENTS --- */
.mediterranean-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.olive-branch {
  position: absolute;
  width: 120px;
  height: 60px;
  background: linear-gradient(45deg, var(--olive-green), var(--sage-green));
  border-radius: 50px;
  opacity: 0.1;
  animation: float 8s ease-in-out infinite;
}

.olive-branch::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 20px;
  width: 8px;
  height: 8px;
  background: var(--golden-yellow);
  border-radius: 50%;
  box-shadow: 15px 0 0 var(--golden-yellow), 30px 0 0 var(--golden-yellow);
}

.olive-1 {
  top: 10%;
  left: 5%;
  transform: rotate(-15deg);
  animation-delay: 0s;
}

.olive-2 {
  top: 60%;
  right: 8%;
  transform: rotate(25deg);
  animation-delay: -4s;
}

.olive-3 {
  bottom: 15%;
  left: 15%;
  transform: rotate(-5deg);
  animation-delay: -2s;
}

.sun-pattern {
  position: absolute;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, var(--golden-yellow) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.05;
  animation: pulse 6s ease-in-out infinite;
}

.sun-1 {
  top: 20%;
  right: 10%;
  animation-delay: 0s;
}

.sun-2 {
  bottom: 30%;
  right: 20%;
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(var(--rotation, -15deg)); }
  50% { transform: translateY(-20px) rotate(var(--rotation, -15deg)); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.05; }
  50% { transform: scale(1.2); opacity: 0.08; }
}

/* --- NAVIGATION --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(13, 51, 28, 0.98);
  backdrop-filter: blur(25px);
  border-bottom: 2px solid rgba(182, 177, 169, 0.15);
  z-index: 1000;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
  background: rgba(13, 51, 28, 0.98);
  border-bottom-color: rgba(182, 177, 169, 0.25);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) 0;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  min-height: 70px;
}

.nav-logo {
  text-decoration: none;
  color: var(--text-main);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  display: block;
  letter-spacing: 0.5px;
  color: var(--text-main);
}

.logo-subtitle {
  font-size: var(--font-size-sm);
  opacity: 0.85;
  font-weight: 400;
  color: var(--text-main);
  letter-spacing: 0.3px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
  align-items: center;
}

.nav-cta .btn-nav {
  padding: var(--space-sm) var(--space-xl);
  line-height: 1;
}

.nav-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  letter-spacing: 0.2px;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-sunset);
  border-radius: 2px;
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-sunset);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
  border-radius: var(--radius-md);
}

.nav-link:hover::before {
  transform: scaleY(1);
}

.nav-link:hover::after {
  opacity: 0.15;
}

.nav-link:hover {
  color: var(--text-main);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(210, 105, 30, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.nav-toggle {
  background: transparent;
  border: none;
}

.nav-toggle:hover {
  background: rgba(182, 177, 169, 0.1);
}

.nav-toggle span {
  width: 28px;
  height: 3px;
  background: var(--text-main);
  transition: all var(--transition-base);
  border-radius: 2px;
  transform-origin: center;
}

/* Active navigation link */
.nav-link.active::before {
  transform: scaleY(1);
}

.nav-link.active::after {
  opacity: 0.2;
}

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

/* --- HERO SECTION --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-earth);
  position: relative;
  overflow: hidden;
  padding: var(--space-4xl) 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 640px;
  padding-top: 80px;
}

.hero-logo {
  margin-bottom: var(--space-2xl);
}

.hero-logo img {
  width: 160px;
  height: auto;
  margin: 0 auto var(--space-2xl);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

.hero-logo img:hover {
  transform: scale(1.05);
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.title-line {
  display: block;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--golden-yellow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  color: var(--text-main);
  opacity: 0.9;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin: 0 auto;
}

.hero-image img {
  width: min(480px, 90vw);
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-image:hover img {
  transform: scale(1.02);
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  min-height: 48px;
}

.btn-primary {
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--warm-beige);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--text-main);
}

.btn-secondary:hover {
  background: var(--text-main);
  color: var(--bg-main);
  transform: translateY(-2px);
}

/* --- SECTION HEADERS --- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 600;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-main) 0%, var(--golden-yellow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-divider {
  width: 80px;
  height: 4px;
  background: var(--gradient-sunset);
  margin: 0 auto var(--space-lg);
  border-radius: 2px;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-main);
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
}

/* --- ABOUT SECTION --- */
.about-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.8) 0%, rgba(107, 142, 35, 0.1) 100%);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.about-text {
  max-width: 500px;
}

.about-intro {
  font-size: var(--font-size-lg);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  color: var(--text-main);
}

.about-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  align-items: center;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.gallery-item img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(13, 51, 28, 0.9);
  color: var(--text-main);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  text-align: center;
  font-weight: 500;
}

/* --- SERVICES SECTION --- */
.services-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.6) 0%, rgba(139, 69, 19, 0.1) 100%);
}
/* --- METHOD SECTION --- */
.method-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.7) 0%, rgba(156, 175, 136, 0.1) 100%);
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.step-card {
  background: rgba(13, 51, 28, 0.3);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--golden-yellow);
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-weight: 700;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.service-card {
  background: rgba(13, 51, 28, 0.3);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card .badge {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.3px;
  border-radius: 999px;
  color: var(--warm-beige);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
}

.badge-accent {
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  box-shadow: var(--shadow-sm);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-sunset);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--golden-yellow);
}

.service-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-lg);
  background: var(--gradient-sunset);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-beige);
}

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

.service-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-main);
}

.service-description {
  color: var(--text-main);
  opacity: 0.9;
  line-height: 1.6;
}

/* --- RESOURCES SECTION --- */
.resources-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.7) 0%, rgba(156, 175, 136, 0.1) 100%);
}

.resources-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

/* --- TESTIMONIALS SECTION --- */
.testimonials-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.6) 0%, rgba(139, 69, 19, 0.1) 100%);
}

.testimonials-slider {
  position: relative;
  display: flex;
  gap: var(--space-2xl);
  overflow: hidden;
  scroll-behavior: smooth;
}

.testimonial-card {
  background: rgba(13, 51, 28, 0.3);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  transition: opacity var(--transition-base), transform var(--transition-base);
  flex: 0 0 100%;
  min-width: 0;
}

.testimonial-text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.testimonial-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  opacity: 0.9;
}

.person {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04));
  border: 1px solid rgba(182, 177, 169, 0.25);
  color: var(--warm-beige);
  font-weight: 700;
  letter-spacing: 0.3px;
  box-shadow: var(--shadow-sm);
}

.slider-controls {
  margin-top: var(--space-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
}

.slider-dots {
  display: flex;
  gap: var(--space-sm);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(182, 177, 169, 0.3);
  cursor: pointer;
  transition: all var(--transition-base);
}

.dot.active {
  background: var(--golden-yellow);
  transform: scale(1.2);
}

.dot:hover {
  background: var(--golden-yellow);
  opacity: 0.7;
}

.slider-prev, .slider-next {
  background: rgba(13, 51, 28, 0.8);
  border: 2px solid var(--golden-yellow);
  color: var(--golden-yellow);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  font-weight: bold;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-prev:hover, .slider-next:hover {
  background: var(--golden-yellow);
  color: var(--bg-main);
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.resource-item {
  background: rgba(13, 51, 28, 0.4);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(182, 177, 169, 0.25);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.resource-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-sunset);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.resource-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--golden-yellow);
}

.resource-item:hover::before {
  transform: scaleX(1);
}

.resource-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-sunset);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-beige);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.resource-item:hover .resource-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.resource-text h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-main);
}

.resource-text p {
  color: var(--text-main);
  opacity: 0.9;
  margin-bottom: var(--space-md);
}

.resource-link {
  color: var(--golden-yellow);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-base);
}

.resource-link:hover {
  color: var(--sunset-orange);
}

.coming-soon {
  display: inline-block;
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 40px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.download-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--warm-beige);
}

.download-button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.download-button.loading {
  opacity: 0.7;
  cursor: not-allowed;
}

.download-button.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid transparent;
  border-top: 2px solid var(--warm-beige);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.download-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.degree-selector {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.degree-tab {
  background: rgba(13, 51, 28, 0.3);
  border: 2px solid rgba(182, 177, 169, 0.3);
  color: var(--text-main);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  font-weight: 600;
  font-size: var(--font-size-base);
  position: relative;
  overflow: hidden;
}

.degree-tab.active {
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  border-color: var(--golden-yellow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.degree-tab:hover:not(.active) {
  border-color: var(--golden-yellow);
  transform: translateY(-1px);
}

.degree-content {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.degree-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.file-list {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.file-item {
  display: flex;
  align-items: center;
  background: rgba(13, 51, 28, 0.2);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition-base);
}

.file-item:hover {
  border-color: var(--golden-yellow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.file-item:focus-within {
  border-color: var(--golden-yellow);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
}

.file-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.file-icon {
  width: 24px;
  height: 24px;
  color: var(--golden-yellow);
}

.file-name {
  font-weight: 500;
  color: var(--text-main);
}

.download-all-button {
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 48px;
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin: 0 auto;
}

.download-all-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--warm-beige);
}

/* Book Details Styles */
.book-details {
  margin-top: var(--space-lg);
  display: grid;
  gap: var(--space-lg);
}

.book-info h4,
.book-progress h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-main);
}

.book-topics {
  list-style: none;
  padding: 0;
  margin: 0;
}

.book-topics li {
  padding: var(--space-sm) 0;
  color: var(--text-main);
  opacity: 0.9;
  border-bottom: 1px solid rgba(182, 177, 169, 0.1);
  transition: all var(--transition-base);
}

.book-topics li:hover {
  opacity: 1;
  padding-left: var(--space-sm);
  color: var(--golden-yellow);
}

.book-topics li:last-child {
  border-bottom: none;
}

.progress-container {
  background: rgba(13, 51, 28, 0.3);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-sm);
}

.progress-label {
  font-size: var(--font-size-sm);
  color: var(--text-main);
  opacity: 0.8;
  margin-bottom: var(--space-xs);
}

.progress-text {
  font-size: var(--font-size-sm);
  color: var(--golden-yellow);
  font-weight: 600;
  text-align: center;
  margin-top: var(--space-xs);
}

.book-cta {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(182, 177, 169, 0.2);
}

.book-notify {
  font-size: var(--font-size-sm);
  color: var(--text-main);
  opacity: 0.8;
  margin: var(--space-sm) 0;
}

/* Tooltip styles */
.download-button[title] {
  position: relative;
}

.download-button[title]:hover::before {
  content: attr(title);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 1000;
  margin-bottom: var(--space-xs);
}

.download-button[title]:hover::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: rgba(0, 0, 0, 0.9);
  z-index: 1000;
}

/* --- CONTACT SECTION --- */
.contact-section {
  background: linear-gradient(135deg, rgba(13, 51, 28, 0.8) 0%, rgba(210, 105, 30, 0.1) 100%);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.contact-item {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  background: rgba(13, 51, 28, 0.3);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(182, 177, 169, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.contact-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--golden-yellow);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-sunset);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-beige);
  flex-shrink: 0;
}

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

.contact-details h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
  color: var(--text-main);
}

.contact-details p {
  color: var(--text-main);
  opacity: 0.8;
  margin-bottom: var(--space-sm);
}

.contact-link {
  color: var(--golden-yellow);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-lg);
  transition: color var(--transition-base);
}

.contact-link:hover {
  color: var(--sunset-orange);
}

.contact-cta {
  text-align: center;
}

.contact-cta p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  color: var(--text-main);
}

.availability {
  margin-top: var(--space-lg);
}

.progress-label {
  font-size: var(--font-size-sm);
  opacity: 0.85;
  margin-bottom: var(--space-xs);
}

.progress {
  position: relative;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(182, 177, 169, 0.25);
  overflow: hidden;
}

.progress > span {
  display: block;
  height: 100%;
  background: var(--gradient-sunset);
  border-radius: 999px;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.15);
  transition: width var(--transition-slow);
}

/* --- LIGHTBOX --- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: grid;
  place-items: center;
  padding: var(--space-xl);
  z-index: 2000;
}

.lightbox[hidden] {
  display: none !important;
}

.lightbox img {
  max-width: min(920px, 90vw);
  max-height: 80vh;
  box-shadow: var(--shadow-xl);
  border-radius: var(--radius-xl);
}

.lightbox.open .lightbox-image {
  animation: zoomIn 300ms ease;
}

@keyframes zoomIn {
  from { transform: scale(0.98); opacity: 0.6; }
  to   { transform: scale(1); opacity: 1; }
}

.lightbox-caption {
  margin-top: var(--space-md);
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.15);
  color: #fff;
  cursor: pointer;
  font-size: 24px;
}

/* --- FOOTER --- */
.footer {
  background: rgba(13, 51, 28, 0.95);
  border-top: 1px solid rgba(182, 177, 169, 0.2);
  padding: var(--space-3xl) 0 var(--space-lg);
  margin-top: var(--space-4xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text-main);
}

.footer-brand p {
  color: var(--text-main);
  opacity: 0.8;
  margin-bottom: var(--space-xs);
}

.footer-motto {
  font-style: italic;
  color: var(--golden-yellow) !important;
  font-weight: 500;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  justify-content: flex-end;
  align-items: center;
}

.footer-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--golden-yellow);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(182, 177, 169, 0.2);
  color: var(--text-main);
  opacity: 0.7;
  font-size: var(--font-size-sm);
}

/* --- MOBILE CTA BAR --- */
.mobile-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-md) var(--container-padding);
  background: rgba(13, 51, 28, 0.96);
  border-top: 1px solid rgba(182, 177, 169, 0.2);
  display: none;
  z-index: 1500;
  backdrop-filter: blur(10px);
}

.mobile-cta-button {
  display: block;
  text-align: center;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--gradient-sunset);
  color: var(--warm-beige);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-base);
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--warm-beige);
}

/* --- ANIMATIONS --- */
.fadein {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fadein.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animations */
.service-card:nth-child(1) { transition-delay: 0.1s; }
.service-card:nth-child(2) { transition-delay: 0.2s; }
.service-card:nth-child(3) { transition-delay: 0.3s; }
.service-card:nth-child(4) { transition-delay: 0.4s; }

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-3xl);
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }
  .about-gallery {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
  
  /* Resources section tablet optimization */
  .resources-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .resource-item {
    padding: var(--space-2xl);
    flex-direction: row;
    text-align: left;
    gap: var(--space-lg);
  }
  
  .resource-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
  }
  
  .resource-text h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
  }
  
  .resource-text p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--space-md);
  }
  
  .book-details {
    gap: var(--space-lg);
    margin-top: var(--space-md);
  }
  
  .book-info h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-sm);
  }
  
  .book-topics li {
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
    line-height: 1.4;
  }
  
  .degree-selector {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-md);
  }
  
  .degree-tab {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
  }
  
  .download-all-button {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: var(--space-md) 0;
    min-height: 60px;
  }
  
  .logo-text {
    font-size: var(--font-size-xl);
  }
  
  .logo-subtitle {
    font-size: var(--font-size-xs);
  }
  
  .nav-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background: rgba(13, 51, 28, 0.98);
    backdrop-filter: blur(25px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--space-2xl);
    transition: left var(--transition-base);
    border-top: 1px solid rgba(182, 177, 169, 0.1);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-menu .nav-link {
    font-size: var(--font-size-base);
    padding: var(--space-md) var(--space-xl);
    margin: var(--space-xs) 0;
    width: 80%;
    text-align: center;
    justify-content: center;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  .hero-image img {
    width: min(420px, 92vw);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .resources-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .resource-item {
    padding: var(--space-xl);
    flex-direction: row;
    text-align: left;
    gap: var(--space-lg);
  }
  
  .resource-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
  }
  
  .resource-text h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
  }
  
  .resource-text p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--space-md);
  }
  
  .book-details {
    gap: var(--space-md);
    margin-top: var(--space-md);
  }
  
  .book-info h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-sm);
  }
  
  .book-topics li {
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
    line-height: 1.4;
  }
  
  .degree-selector {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-md);
  }
  
  .degree-tab {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
  }
  
  .download-all-button {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
  }
  
  .about-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

  .mobile-cta {
    display: block;
  }
}

@media (max-width: 480px) {
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .hero {
    padding: var(--space-2xl) 0;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .about-gallery {
    grid-template-columns: 1fr;
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  /* Resources section mobile optimization */
  .resources-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .resource-item {
    padding: var(--space-lg);
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
  
  .resource-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto;
  }
  
  .resource-icon svg {
    width: 24px;
    height: 24px;
  }
  
  .resource-text h3 {
    font-size: var(--font-size-lg);
    line-height: 1.3;
    margin-bottom: var(--space-sm);
  }
  
  .resource-text p {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--space-md);
  }
  
  .book-details {
    gap: var(--space-sm);
    margin-top: var(--space-sm);
  }
  
  .book-info h4 {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
    text-align: center;
  }
  
  .book-topics {
    margin-top: var(--space-sm);
  }
  
  .book-topics li {
    font-size: var(--font-size-xs);
    padding: var(--space-xs) 0;
    line-height: 1.3;
    text-align: left;
  }
  
  .book-topics li:hover {
    padding-left: var(--space-xs);
  }
  
  .download-button {
    width: 100%;
    max-width: 280px;
  }
  
  .degree-selector {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }
  
  .degree-tab {
    width: 100%;
    max-width: 300px;
    text-align: center;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
  }
  
  .file-item {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
  }
  
  .download-all-button {
    width: 100%;
    max-width: 300px;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
    min-height: 44px;
  }
  
  /* Improve touch targets for mobile */
  .degree-tab,
  .download-button,
  .download-all-button {
    min-height: 44px;
    touch-action: manipulation;
  }
  
  /* Better spacing for mobile content */
  .resource-text {
    margin-bottom: var(--space-md);
  }
  
  .book-details {
    margin-top: var(--space-md);
  }
  
  /* Ensure proper spacing for mobile CTA */
  .main-content {
    padding-bottom: 80px;
  }
}

/* --- ACCESSIBILITY --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .olive-branch,
  .sun-pattern {
    animation: none;
  }
}

/* Focus styles */
.nav-link:focus-visible,
.btn:focus-visible,
.contact-link:focus-visible,
.resource-link:focus-visible,
.footer-link:focus-visible {
  outline: 2px solid var(--golden-yellow);
  outline-offset: 2px;
}

/* --- PRINT STYLES --- */
@media print {
  .navbar,
  .mediterranean-elements,
  .btn {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .hero,
  .about-section,
  .services-section,
  .resources-section,
  .contact-section {
    background: white !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
}