/* Modern CSS Framework - Fruitful-inspired design */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Modern Color Palette - Vibrant Blue */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #0d6efd;  /* Main vibrant blue */
  --color-primary-600: #0c63e4;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* Neutral colors */
  --color-neutral-50: #fafaf9;
  --color-neutral-100: #f5f5f4;
  --color-neutral-200: #e7e5e4;
  --color-neutral-300: #d6d3d1;
  --color-neutral-400: #a8a29e;
  --color-neutral-500: #78716c;
  --color-neutral-600: #57534e;
  --color-neutral-700: #44403c;
  --color-neutral-800: #292524;
  --color-neutral-900: #1c1917;

  /* Accent colors */
  --color-accent-400: #fbbf24;
  --color-accent-500: #f59e0b;

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-hero: 3.5rem;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-body: 1.125rem;
  --font-size-small: 0.875rem;

  /* Spacing (8-point grid) */
  --spacing-1: 0.5rem;   /* 8px */
  --spacing-2: 1rem;     /* 16px */
  --spacing-3: 1.5rem;   /* 24px */
  --spacing-4: 2rem;     /* 32px */
  --spacing-6: 3rem;     /* 48px */
  --spacing-8: 4rem;     /* 64px */
  --spacing-12: 6rem;    /* 96px */

  /* Border radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;

  /* Shadows */
  --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-large: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

/* Base styles */
* {
  transition: all 0.2s ease-in-out;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-neutral-800);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography overrides */
h1, .text-hero {
  font-size: var(--font-size-hero);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-3);
}

h2, .text-h1 {
  font-size: var(--font-size-h1);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-2);
}

h3, .text-h2 {
  font-size: var(--font-size-h2);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-neutral-800);
  margin-bottom: var(--spacing-2);
}

p, .text-body {
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-neutral-600);
  margin-bottom: var(--spacing-3);
}

/* Modern button styles */
.btn-modern-primary {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-primary-500);
  color: white;
  font-weight: 500;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-modern-primary:hover {
  background: var(--color-primary-600);
  box-shadow: var(--shadow-large);
  transform: translateY(-1px);
  color: white;
  text-decoration: none;
}

.btn-modern-secondary {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-2) var(--spacing-3);
  background: white;
  color: var(--color-primary-600);
  font-weight: 500;
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-modern-secondary:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
  color: var(--color-primary-700);
  text-decoration: none;
}

/* Modern card styles */
.card-modern {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-3);
  transition: all 0.3s ease;
}

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

.card-modern-minimal {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--spacing-2);
  transition: all 0.2s ease;
}

.card-modern-minimal:hover {
  box-shadow: var(--shadow-medium);
}

/* Section layouts */
.section-modern {
  padding: var(--spacing-8) var(--spacing-2);
  background: var(--color-neutral-50);
  margin: var(--spacing-4) 0;
  border-radius: var(--radius-2xl);
}

.section-modern:nth-child(even) {
  background: white;
}

@media (min-width: 768px) {
  .section-modern {
    padding: var(--spacing-12) var(--spacing-4);
    margin: var(--spacing-6) var(--spacing-2);
  }
}

.container-modern {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-2);
}

/* Hero section styling */
.hero-modern {
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-neutral-50) 50%, var(--color-primary-100) 100%);
  padding: var(--spacing-12) var(--spacing-2) var(--spacing-8);
  border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
  position: relative;
  overflow: hidden;
}

.hero-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23dbeafe' fill-opacity='0.3'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  opacity: 0.6;
  z-index: 1;
}

.hero-modern > * {
  position: relative;
  z-index: 2;
}

/* Coach card updates */
.coach-card-modern {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  padding: var(--spacing-3);
  transition: all 0.3s ease;
  border: 1px solid var(--color-neutral-200);
}

.coach-card-modern:hover {
  box-shadow: 0 25px 50px -12px rgba(13, 110, 253, 0.25);
  transform: translateY(-8px);
  border-color: var(--color-primary-300);
}

.coach-card-modern img {
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2);
}

.coach-card-modern .coach-name {
  color: var(--color-primary-600);
  font-weight: 600;
  font-size: var(--font-size-body);
  text-decoration: none;
}

.coach-card-modern .coach-name:hover {
  color: var(--color-primary-700);
  text-decoration: none;
}

.coach-card-modern .coach-title {
  color: var(--color-neutral-700);
  font-weight: 500;
  font-size: var(--font-size-small);
  margin-bottom: var(--spacing-1);
}

.coach-card-modern .coach-price {
  color: var(--color-neutral-600);
  font-size: var(--font-size-small);
}

/* Header improvements */
.navbar-modern {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-soft);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Legacy button overrides */
.btn-blue {
  background: var(--color-primary-500) !important;
  border: 1px solid var(--color-primary-500) !important;
  color: white !important;
  border-radius: var(--radius-lg) !important;
  padding: var(--spacing-2) var(--spacing-3) !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-medium) !important;
  transition: all 0.2s ease !important;
  text-decoration: none !important;
}

.btn-blue:hover {
  background: var(--color-primary-600) !important;
  border-color: var(--color-primary-600) !important;
  color: white !important;
  box-shadow: var(--shadow-large) !important;
  transform: translateY(-1px) !important;
}

.btn-blue:active,
.btn-blue:focus {
  background: var(--color-primary-700) !important;
  color: white !important;
  box-shadow: var(--shadow-medium) !important;
}

/* Utility classes */
.text-primary {
  color: var(--color-primary-500);
}

.text-secondary {
  color: var(--color-neutral-600);
}

.bg-primary {
  background-color: var(--color-primary-500);
}

.bg-soft {
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-neutral-50) 100%);
}

.rounded-modern {
  border-radius: var(--radius-lg);
}

.rounded-modern-xl {
  border-radius: var(--radius-xl);
}

.shadow-modern {
  box-shadow: var(--shadow-medium);
}

.hover-lift:hover {
  transform: translateY(-2px);
}

/* Responsive typography */
@media (max-width: 768px) {
  :root {
    --font-size-hero: 2.5rem;
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --spacing-8: 3rem;
    --spacing-12: 4rem;
  }
}