/* ==========================================================================
   Modern Nutrition Website Styles
   
   Color Palette (Aquamarine Theme):
   - Primary: #7fffd4 (Aquamarine1)
   - Secondary: #76eec6 (Aquamarine2)  
   - Accent: #66cdaa (Aquamarine3)
   - Dark: #58c9a3 (Aquamarine4)
   
   Typography: Poppins (Clean, modern, professional)
   ========================================================================== */

/* CSS Custom Properties for consistent theming */
:root {
  /* New Earthy & Muted Palette */
  --color-primary: #76762f;      /* Olive Green for highlights and icons */
  --color-secondary: #455f26;    /* Forest Green for darker shades/hovers */
  --color-accent: #455f26;       /* Forest Green for main Call-to-Action buttons */
  --color-dark: #262214;         /* Dark Charcoal for text and dark backgrounds */
  --color-taupe: #857e64;        /* Taupe for subtitles and neutral elements */
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-black: #262214;         /* Dark Charcoal */
  --color-gray-light: #f7f6f2;    /* Very light warm gray for section backgrounds */
  --color-gray-medium: #7a7752;   /* Muted Olive for paragraphs */
  --color-gray-dark: #455f26;      /* Forest Green for consistency */
  
  /* Typography */
  --font-family: 'Poppins', sans-serif; /* Default font for UI elements */
  --font-family-body: 'Lora', serif;      /* Font for paragraphs and long-form content */
  --font-family-heading: 'Poppins', sans-serif; /* Font for all headings */
  --font-weight-light: 300;
  --font-weight-normal: 400; /* Poppins & Lora Regular */
  --font-weight-medium: 500; /* Poppins Medium */
  --font-weight-semibold: 600; /* Poppins Semi-Bold (if needed) */
  --font-weight-bold: 700; /* Poppins Bold */
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* ==========================================================================
   Reset and Base Styles
   ========================================================================== */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px; /* Set base font size to 16px for predictable rem units */
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  line-height: 1.6; /* Professional line height for body text */
  color: var(--color-gray-medium);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-medium); /* Default to Medium for subheadings */
  line-height: 1.3;
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0; /* Reset letter spacing for a more classic look with Playfair */
}

h1 { 
  font-size: 2.25rem; /* 36px */
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
}
h2 { 
  font-size: 1.75rem; /* 28px */
  font-weight: var(--font-weight-medium);
  line-height: 1.25;
}
h3 { font-size: 1.375rem; /* 22px */ }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  font-family: var(--font-family-body);
  font-size: 1rem; /* 16px */
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-medium);
}

/* Links */
a {
  color: var(--color-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--color-primary);
}

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

/* Lists */
ul, ol {
  list-style: none;
}

/* Buttons */
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* Form Elements */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-title {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-medium);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-dark); /* Dark Charcoal Header */
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.header.scrolled .logo {
  height: 80px; /* Kaydırma sırasında logonun küçüleceği boyut */
}

.header.scrolled .nav-brand {
  top: 5px; /* Küçülen logoyu dikeyde ortalamak için */
}


/* Top Bar */
.top-bar {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 0.03rem 0; /* Daha da küçük padding */
  font-size: 0.65rem; /* Daha küçük font */
  min-height: 16px; /* Çok ince şerit */
  border-bottom: none; /* Border kaldır */
}

.top-bar .container {
  display: flex;
  justify-content: flex-end; /* Hepsini sağa */
  align-items: center;
  gap: 0; /* Gap kaldır */
}

.contact-info {
  display: flex;
  gap: 1.2rem; /* Küçük gap */
  margin-right: 1.2rem; /* Sosyal medyadan ayrım */
}

.top-bar .contact-item {
  display: flex;
  align-items: center;
  gap: 0.2rem; /* Çok küçük gap */
  color: var(--color-white); /* Beyaz yazı - kontrastlı */
  transition: color var(--transition-fast);
  font-weight: var(--font-weight-normal);
  text-decoration: none;
  cursor: default;
  pointer-events: none;
}

.top-bar .contact-item:hover {
  color: var(--color-primary); /* Açık yeşil hover */
}

.social-links {
  display: flex;
  gap: 0.6rem; /* Küçük gap */
  align-items: center;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px; /* Büyütüldü - orta boyut */
  height: 20px;
  background: transparent;
  border-radius: 0;
  color: var(--color-white); /* Beyaz iconlar - kontrastlı */
  transition: all var(--transition-fast);
  font-size: 0.9rem; /* Icon boyutu büyütüldü */
}

.social-links a:hover {
  color: var(--color-primary); /* Olive Green hover */
  transform: scale(1.1); /* Hafif büyüme efekti */
}

/* Language Selector */
.language-selector {
  margin-right: 1.2rem;
}

.language-selector select {
  background-color: transparent;
  color: var(--color-white);
  border: none;
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
}

.language-selector select:focus {
  outline: none;
}

.language-selector option {
  background-color: var(--color-dark);
  color: var(--color-white);
}

/* Main Navigation */
.navbar {
  padding: var(--spacing-sm) 0;
}

.navbar .container {
  display: flex;
  justify-content: flex-end; /* Menüyü sağa yaslamak için */
  align-items: center;
  gap: 2rem;
}

.nav-brand {
  position: absolute; /* Logoyu navbar akışından çıkarmak için */
  top: -15px; /* Logoyu yukarı taşıyarak headline ile çakışmasını önlemek için */
  left: var(--spacing-md); /* Konteyner ile hizalamak için */
  z-index: 1001; /* Diğer elemanların üzerinde kalması için */
  transition: all var(--transition-normal);
}

.logo {
  height: 250px; /* Logonun yeni boyutu */
  width: auto;
  filter: brightness(0) invert(1); /* Make logo white for dark background */
  transition: height var(--transition-normal);
}

.brand-text {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg); /* Menü öğeleri arasındaki boşluğu ayarla */
}

.nav-link {
  font-weight: var(--font-weight-normal);
  color: var(--color-white); /* White links for contrast */
  font-size: 15px; /* Updated font size as per request */
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-primary);
  outline: none; /* Tıklama/odaklanma sırasında çıkan kutucuğu kaldırır */
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-xs);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-white); /* White hamburger icon */
  border-radius: 1px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   Hero Section with Video Background
   ========================================================================== */

.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

/* Video Background Styling */
.hero-video-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* 30% Transparent Video Overlay */
.hero-video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Replaced with a single, darker overlay for a more professional look */
  z-index: 1;
}

/* Content Overlay for better text readability */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.4); /* Dark overlay for professionalism and readability */
  z-index: 2;
}

/* UPDATED: Hero content alignment and styling for new text layout */
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 900px;
  padding: 0 var(--spacing-md);
  text-align: left;
  margin-left: 0;
  margin-right: auto;
}

/* UPDATED: Hero title styling for new heading text */
.hero-title {
  font-size: 60px; /* Locked font size */
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md); /* Tighter margin for better flow */
  text-shadow: 0 3px 8px rgba(0, 0, 0, 0.45); /* Subtle shadow for depth and readability */
  color: var(--color-white);
  line-height: 1.2;
}

/* UPDATED: Hero subtitle styling for new subheading text */
.hero-subtitle {
  font-size: 18px; /* Locked font size */
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  color: var(--color-white);
  text-shadow: none; /* No shadow as requested */
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  max-width: 700px; /* Wider for better balance */
}

/* UPDATED: CTA button styling for new button text and improved alignment */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md); /* Buton kenarlardan küçültüldü */
  border-radius: var(--border-radius-xl);
  font-weight: var(--font-weight-normal);
  font-size: 1rem; /* 16px */
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  z-index: 3;
  border: none;
  text-decoration: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); /* Okunabilirlik için gölge */
}

/* UPDATED: Enhanced CTA button hover effects */
.cta-button:hover,
.cta-button:focus {
  transform: translateY(-4px);
  color: var(--color-white);
  background: var(--color-secondary); /* Forest Green hover */
  box-shadow: var(--shadow-lg);
  outline: none; /* Köşedeki renk (odaklanma çerçevesi) kaldırıldı */
}

.cta-button:hover i,
.cta-button:focus i {
  transform: translateX(4px);
}

/* ==========================================================================
   Benefits Section
   ========================================================================== */

.benefits {
  padding: var(--spacing-xxl) 0;
  background: var(--color-gray-light);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* Creates a 2x2 grid layout */
  gap: var(--spacing-xl);
  align-items: stretch; /* Ensure all cards in a row have the same height */
}

.benefit-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid transparent; /* Reserve space for border but keep it invisible */
}

.benefit-card:hover {
  transform: translateY(-5px); /* More subtle lift effect */
  box-shadow: var(--shadow-lg); /* A more subtle, professional shadow on hover */
}

.benefit-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  transition: transform var(--transition-normal);
}

.benefit-card:hover .benefit-icon {
  transform: scale(1.1) rotate(5deg);
}

.benefit-icon i {
  font-size: 2rem;
  color: var(--color-black);
}

.benefit-card h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
}

/* ==========================================================================
   About Section with Video Integration
   ========================================================================== */

.about {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
  overflow: hidden;
}

.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  min-height: 600px;
}

/* Text Content Styling */
.about-text {
  padding-right: var(--spacing-lg);
}

.about-text h2 {
  /* Uses default h2 color */
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.about-subtitle {
  color: var(--color-taupe);
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
}

.about-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-dark);
  margin-bottom: var(--spacing-lg);
}

.about-cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-full);
  text-decoration: none;
  font-weight: var(--font-weight-normal);
  font-size: 1rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  margin-top: var(--spacing-md);
}

.about-cta-button:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--color-secondary);
}

.about-cta-button i {
  transition: transform var(--transition-normal);
}

.about-cta-button:hover i {
  transform: translateX(4px);
}

/* Image Content Styling */
.about-image {
  position: relative;
  height: 100%;
  min-height: 400px;
}

.image-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: var(--color-gray-light);
}

.diet-image {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius-xl);
  transition: transform var(--transition-slow);
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: var(--border-radius-xl);
}

.image-wrapper:hover .image-overlay {
  opacity: 1;
}

.image-wrapper:hover .diet-image {
  transform: scale(1.02);
}

.overlay-content {
  text-align: center;
  color: var(--color-white);
  padding: var(--spacing-lg);
}

.overlay-content h3 {
  font-size: 1.375rem; /* 22px */
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-light);
}

.overlay-content p {
  opacity: 0.9;
}

.image-caption {
  text-align: center;
  margin-top: var(--spacing-md);
  font-style: italic;
  color: var(--color-gray-medium);
  font-size: 0.9rem;
}

/* Video Fallback Styling */
.video-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 400px;
  background: var(--color-gray-light);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-lg);
  text-align: center;
}

.fallback-image {
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

.fallback-text h4 {
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.fallback-text p {
  color: var(--color-gray-medium);
  font-size: 0.9rem;
  margin: 0;
}

/* Stats Grid Styling */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, 
    rgba(127, 255, 212, 0.1), 
    rgba(118, 238, 198, 0.1)
  );
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(127, 255, 212, 0.2);
  transition: all var(--transition-normal);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, 
    rgba(127, 255, 212, 0.2), 
    rgba(118, 238, 198, 0.2)
  );
}

.stat-number {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-family-heading);
}

.stat-label {
  color: var(--color-gray-medium);
  font-weight: var(--font-weight-medium);
  margin: 0;
  font-size: 0.9rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
  padding: var(--spacing-xxl) 0;
  background: var(--color-gray-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* This will be overridden for the scroll container */
  gap: var(--spacing-xl);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.service-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-image {
  transform: scale(1.1);
}

.service-content {
  padding: var(--spacing-lg);
}

.service-content h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}

.service-content p {
  margin-bottom: var(--spacing-md);
}

.service-features {
  margin-bottom: var(--spacing-md);
}

.service-features li {
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
  position: relative;
  color: var(--color-gray-medium);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* Carousel Wrapper */
.carousel-wrapper {
  position: relative;
}

.carousel-container {
  overflow-x: auto;
  scroll-behavior: smooth;
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

.carousel-container::-webkit-scrollbar {
  display: none; /* Chrome, Safari, and Opera */
}

.services .services-grid {
  /* Override grid to create a horizontal row */
  display: flex;
  grid-template-columns: none; /* Reset grid columns */
  padding-bottom: var(--spacing-md); /* Space for scrollbar if visible */
  width: max-content; /* Allow the container to grow with its content */
}

.services .service-card {
  flex: 0 0 320px; /* Do not grow, do not shrink, base width */
  width: 320px;
}

/* Carousel Navigation Buttons */
.carousel-button {
  position: absolute;
  top: 40%; /* Adjust vertical position */
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid #eee;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
  color: var(--color-dark);
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.carousel-button:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-50%) scale(1.1);
}

.carousel-button.prev {
  left: -25px;
}

.carousel-button.next {
  right: -25px;
}

.carousel-button.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-secondary);
  color: var(--color-white);
}

.cta-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  text-align: center;
}

.cta-text h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: 40px; /* Locked font size */
  font-weight: var(--font-weight-bold);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.3); /* Shadow for readability on dark background */
}

.cta-text p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.cta-button.primary {
  background: var(--color-white);
  color: var(--color-dark);
}

.cta-button.primary:hover {
  background: var(--color-gray-light);
}

.cta-price {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* Enforce a 2-column grid on desktop */
  gap: var(--spacing-xl);
  align-items: stretch; /* Ensures cards in the same row have equal height */
}

.step-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-gray-light);
  border-radius: var(--border-radius-xl);
  transition: all var(--transition-normal);
  position: relative;
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin: 0 auto var(--spacing-md);
}

.step-card h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.step-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-dark);
  font-weight: var(--font-weight-medium);
  margin-top: var(--spacing-md);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Testimonials Section
   ========================================================================== */

.testimonials {
  padding: var(--spacing-xxl) 0;
  background: var(--color-gray-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.testimonial-content {
  padding: var(--spacing-lg);
}

.quote-icon {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.testimonial-content blockquote {
  font-family: var(--font-family-body);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.author-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  font-style: normal;
}

/* ==========================================================================
   Blog Section
   ========================================================================== */

.blog {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.blog-card {
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.blog-image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.blog-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-img {
  transform: scale(1.1);
}

.blog-date {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.7); /* Semi-transparent white */
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  color: var(--color-black);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.18);
  text-align: center;
  font-weight: var(--font-weight-semibold);
  font-size: 0.875rem;
}

.date-day {
  display: block;
  font-size: 1.25rem;
  line-height: 1;
}

.date-month {
  font-size: 0.75rem;
  text-transform: uppercase;
}

.blog-content {
  padding: var(--spacing-lg);
}

.blog-content h3 {
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
}

.blog-content h3 a {
  color: var(--color-black);
  transition: color var(--transition-fast);
}

.blog-content h3 a:hover {
  color: var(--color-dark);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  margin-top: var(--spacing-md);
  transition: all var(--transition-fast);
}

.read-more:hover {
  color: var(--color-primary);
  gap: var(--spacing-sm);
}

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

.secondary-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-xl);
  font-weight: var(--font-weight-normal);
  font-size: 1rem;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.secondary-button:hover {
  transform: translateY(-4px);
  color: var(--color-white);
  background: var(--color-secondary);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq {
  padding: var(--spacing-xxl) 0;
  background: var(--color-gray-light);
}

.faq-content {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--spacing-lg);
  background: none;
  border: none;
  text-align: left;
  font-size: 18px;
  font-weight: var(--font-weight-normal);
  color: var(--color-black);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-gray-light);
}

.faq-question:focus {
  outline: none; /* Remove the focus outline on click as requested */
  box-shadow: none; /* Ensure no other focus effects are applied */
}

.faq-question i {
  transition: transform var(--transition-fast);
  color: var(--color-dark);
}

.faq-question[aria-expanded="true"] i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer.active {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--color-gray-medium);
  line-height: 1.6;
  font-size: 15px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: start;
}

.contact-card {
  background: var(--color-gray-light);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  text-align: center;
}

.contact-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%; /* Adjusts the image to focus more on the face */
  margin: 0 auto var(--spacing-md);
}

.contact-card h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  font-size: 30px; /* Locked font size */
  font-weight: var(--font-weight-bold);
}

.contact-card p {
  margin-bottom: var(--spacing-lg);
}

.contact-details {
  text-align: left;
}

.contact .contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.contact .contact-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.contact .contact-item i {
  color: var(--color-dark);
  font-size: 1.25rem;
  margin-top: 2px;
}

.contact .contact-item h4 {
  margin-bottom: var(--spacing-xs);
}

.contact .contact-item p {
  margin: 0;
  color: var(--color-gray-medium);
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--color-gray-light);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-normal);
  color: var(--color-black);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid #ddd;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #b0b0b0; /* Slightly darker neutral border for focus */
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.07); /* Subtle shadow for depth */
}

.error-message {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.error-message.show {
  opacity: 1;
}

.submit-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-xl);
  font-weight: var(--font-weight-normal);
  font-size: 1rem;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.submit-button:hover {
  transform: translateY(-4px);
  color: var(--color-white);
  background: var(--color-secondary);
  box-shadow: var(--shadow-lg);
}

.form-message {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  text-align: center;
  font-weight: var(--font-weight-medium);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.form-message.show {
  opacity: 1;
}

.form-message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  height: 60px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: var(--color-black);
  transform: translateY(-2px);
}

.footer-section h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact-item i {
  color: var(--color-primary);
  margin-top: 2px;
}

.footer-contact-item a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   Back to Top Button
   ========================================================================== */

.back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.7); /* Semi-transparent white */
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--color-dark); /* Dark icon for contrast */
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   Locked Section Title Styles
   ========================================================================== */

#benefits .section-title,
.about-text h2,
#services .section-title,
.how-it-works .section-title,
.testimonials .section-title,
.blog .section-title,
.faq .section-title,
.contact .section-title {
    font-size: 45px;
    font-weight: var(--font-weight-bold);
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet Styles */
@media (max-width: 768px) {
  /* Navigation */
  .top-bar .social-links { display: none; }
  .top-bar .container { justify-content: center; }

  .nav-menu {
    position: fixed;
    top: 96px; /* Header yüksekliğine göre ayarlandı */
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    transform: translateY(-150%); /* Yukarıda gizle */
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0); /* Görünüme kaydır */
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Top bar */
  .top-bar {
    min-height: 14px; /* Mobilde çok ince */
    padding: 0.02rem 0; /* Minimal padding */
  }
  
  .top-bar .container {
    justify-content: flex-end; /* Sağda kalsın */
    padding: 0.02rem 0.5rem; /* Minimal padding */
  }

  .contact-info {
    gap: 0.8rem; /* Küçük gap */
    margin-right: 0.8rem;
  }

  .social-links {
    gap: 0.4rem; /* Küçük gap */
  }

  .social-links a {
    width: 18px; /* Mobilde biraz küçük */
    height: 18px;
    font-size: 0.85rem;
  }

  /* UPDATED: Hero Section Tablet Adjustments for new text layout */
  .hero {
    min-height: 500px;
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
  }

  .cta-button {
    padding: var(--spacing-sm) var(--spacing-lg);
  }

  /* Sections */
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }

  .about-text {
    order: 1;
    padding-right: 0;
  }

  .about-image {
    order: 2;
    min-height: 300px;
  }

  .diet-image {
    min-height: 300px;
  }

  .about-description {
    font-size: 0.95rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .cta-content,
  .newsletter-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .steps-grid {
    grid-template-columns: 1fr; /* Switch to a single column on tablets and mobile */
  }

  .carousel-button {
    width: 40px;
    height: 40px;
    font-size: 1rem;
    top: 45%;
  }

  .carousel-button.prev {
    left: 5px;
  }

  .carousel-button.next {
    right: 5px;
  }

  .newsletter-input-group {
    flex-direction: column;
  }
}

/* Mobile Styles */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-xxl: 2.5rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  /* UPDATED: Hero Section Mobile for new text layout */
  .hero {
    min-height: 450px;
    padding: var(--spacing-lg) 0;
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
  }
  
  .hero-subtitle {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
  }

  .cta-button {
    font-size: 0.9rem;
    gap: var(--spacing-xs);
  }

  /* Video adjustments for mobile */
  .hero-video {
    object-position: center center;
  }

  /* About Section Mobile */
  .about-content {
    gap: var(--spacing-md);
  }

  .about-image {
    min-height: 250px;
  }

  .diet-image {
    min-height: 250px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
  }

  .stat-item {
    padding: var(--spacing-sm);
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .about-text h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
  }

  .about-subtitle {
    font-size: 0.9rem;
  }

  .about-description {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
  }

  .about-cta-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
  }

  .benefits-grid,
  .services-grid,
  .blog-grid,
  .testimonials-grid,
  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .cta-button {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .benefit-card,
  .service-card,
  .blog-card,
  .testimonial-card,
  .step-card {
    margin: 0 var(--spacing-sm);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* ==========================================================================
   Animations & Utilities
   ========================================================================== */

/* Fade-in animation for AOS */
[data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

[data-aos="fade-up"].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-right"] {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.8s ease;
}

[data-aos="fade-right"].aos-animate {
  opacity: 1;
  transform: translateX(0);
}

[data-aos="fade-left"] {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.8s ease;
}

[data-aos="fade-left"].aos-animate {
  opacity: 1;
  transform: translateX(0);
}

/* Loading states */
.loading {
  opacity: 0.5;
  pointer-events: none;
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .benefit-card,
  .service-card,
  .blog-card,
  .testimonial-card,
  .step-card,
  .contact-card {
    border: 2px solid var(--color-black);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print styles */
@media print {
  .header,
  .footer,
  .back-to-top,
  .cta-button,
  .submit-button,
  .newsletter {
    display: none;
  }

  body {
    color: var(--color-black);
    background: var(--color-white);
  }

  section {
    page-break-inside: avoid;
    margin-bottom: var(--spacing-lg);
  }
}