/* ============================================
   KILLER PROFESSIONAL DESIGN SYSTEM
   Premium Alkaline Vegan Recipe Platform
   ============================================ */

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

*:focus-visible {
  outline: 3px solid var(--accent-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   PREMIUM DESIGN TOKENS
   ============================================ */

:root {
  /* Enhanced Natural Health Theme - Jamaican Inspired */
  --primary-900: #004d2a; /* Dark Green */
  --primary-800: #005c32;
  --primary-700: #006b3c;
  --primary-600: #007740;
  --primary-500: #008744; /* Main Brand - Enhanced Natural Green */
  --primary-400: #4caf50;
  --primary-300: #66bb6a;
  --primary-200: #81c784;
  --primary-100: #a5d6a7;
  --primary-50: #c8e6c9;

  /* Accent Colors - Gold & Black */
  --accent-gold: #eaa221; /* Jamaican Gold - Warmer */
  --accent-gold-dark: #d68910;
  --accent-gold-light: #f4a460;
  --accent-orange: #eaa221; /* Use gold instead of orange */
  --accent-green: #4caf50; /* Bright accent green */
  --accent-lime: #76ff03; /* Keep lime for variety */

  /* Jamaican Black */
  --black: #000000;
  --black-soft: #1a1a1a;
  --black-lighter: #2d2d2d;

  /* Neutrals - Clean & Modern */
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #eeeeee;
  --gray-300: #e0e0e0;
  --gray-400: #bdbdbd;
  --gray-500: #9e9e9e;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;
  --black: #000000;

  /* Semantic Colors */
  --success: #00c853;
  --warning: #ffd600;
  --error: #d50000;
  --info: #00b0ff;

  /* Typography Scale - Perfect Proportions */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu',
    'Cantarell', sans-serif;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;

  /* Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
  --text-3xl: clamp(1.875rem, 1.6rem + 1.5vw, 2.25rem);
  --text-4xl: clamp(2.25rem, 1.9rem + 2vw, 3rem);
  --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 3.75rem);
  --text-6xl: clamp(3.75rem, 3rem + 3vw, 4.5rem);

  /* Spacing System - 4px base */
  --space-1: 0.25rem; /* 4px */
  --space-2: 0.5rem; /* 8px */
  --space-3: 0.75rem; /* 12px */
  --space-4: 1rem; /* 16px */
  --space-5: 1.25rem; /* 20px */
  --space-6: 1.5rem; /* 24px */
  --space-8: 2rem; /* 32px */
  --space-10: 2.5rem; /* 40px */
  --space-12: 3rem; /* 48px */
  --space-16: 4rem; /* 64px */
  --space-20: 5rem; /* 80px */
  --space-24: 6rem; /* 96px */
  --space-32: 8rem; /* 128px */

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  /* Shadows - Layered Depth */
  --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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Gradients - Jamaican Flag Theme */
  --gradient-primary: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-900) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
  --gradient-success: linear-gradient(135deg, var(--accent-green) 0%, var(--primary-500) 100%);
  --gradient-jamaica: linear-gradient(
    135deg,
    var(--primary-500) 0%,
    var(--accent-gold) 50%,
    var(--black) 100%
  );
  --gradient-glass: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.6) 100%);
}

/* ============================================
   BODY & BASE STYLES
   ============================================ */

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY - BEAUTIFUL & READABLE
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--text-4xl);
  font-weight: 700;
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-4);
  max-width: 65ch;
  line-height: 1.7;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: 500;
}

a:hover {
  color: var(--primary-800);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

@media (min-width: 1200px) {
  .container {
    padding: 0 var(--space-12);
  }
}

/* ============================================
   SKIP TO CONTENT - ACCESSIBILITY
   ============================================ */

.skip-to-content {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: var(--primary-600);
  color: var(--white);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  z-index: 9999;
  transform: translateY(-200%);
  transition: transform var(--transition-base);
}

.skip-to-content:focus {
  transform: translateY(0);
  outline: 3px solid var(--accent-gold);
  outline-offset: 4px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

.text-right {
  text-align: right;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

.uppercase {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* ============================================
   LOADING & SKELETON STATES
   ============================================ */

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 0%, var(--gray-300) 50%, var(--gray-200) 100%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
  border-radius: var(--radius-md);
}

/* ============================================
   SMOOTH SCROLLING
   ============================================ */

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

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

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  body {
    background: white;
    color: black;
  }

  .no-print {
    display: none !important;
  }

  a {
    text-decoration: underline;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    page-break-after: avoid;
  }

  img {
    max-width: 100% !important;
  }
}

/* ============================================
   BUY ME A COFFEE WIDGET
   ============================================ */

.bmc-widget-container {
  margin-top: 1rem;
}

.bmc-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: #e6c200;
  color: #000;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid #e6c200;
}

.bmc-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(230, 194, 0, 0.4);
  background: #d4b000;
}

.bmc-button:focus-visible {
  outline: 3px solid var(--accent-gold);
  outline-offset: 3px;
}

.bmc-icon {
  height: 24px;
  width: 24px;
}