/* ==========================================================================
   Flora Pulse Hub - Base Styles
   Botanical E-commerce Foundation
   Supports Hungarian typography (Ő, Ű, Á, etc.)
   ========================================================================== */

/* ==========================================================================
   1. Variables
   ========================================================================== */
:root {
  /* Colors - Botanical Palette */
  --color-bg: #FAF9F6;
  --color-bg-alt: #F5F3EF;
  --color-surface: #FFFFFF;
  
  --color-text: #2D3436;
  --color-text-muted: #636E72;
  --color-text-light: #95A5A6;
  
  --color-primary: #7D8B6F;
  --color-primary-hover: #6B785E;
  --color-primary-light: #E8EDE5;
  
  --color-secondary: #E6D5D0;
  --color-secondary-hover: #D9C4BD;
  --color-accent: #C9A87C;
  
  --color-success: #5B8C5A;
  --color-warning: #D4A373;
  --color-danger: #C17C74;
  --color-info: #7A9E9F;
  
  /* Neutral Grays - Warm Tones */
  --color-neutral-100: #F8F7F4;
  --color-neutral-200: #E8E6E1;
  --color-neutral-300: #D4CFC7;
  --color-neutral-400: #A39E93;
  --color-neutral-500: #6B665C;
  --color-neutral-600: #4A4640;
  --color-neutral-700: #2D2A26;
  
  /* Typography */
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;
  
  /* Spacing Scale (0-96px) */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  --space-16: 8rem;
  --space-24: 12rem;
  
  /* Radius - Organic Softness */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows - Soft Botanical Depth */
  --shadow-sm: 0 1px 2px 0 rgba(45, 52, 54, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(45, 52, 54, 0.08), 0 2px 4px -1px rgba(45, 52, 54, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(45, 52, 54, 0.08), 0 4px 6px -2px rgba(45, 52, 54, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(45, 52, 54, 0.08), 0 10px 10px -5px rgba(45, 52, 54, 0.02);
  --shadow-inner: inset 0 2px 4px 0 rgba(45, 52, 54, 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(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   2. Reset & Normalize
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* ==========================================================================
   3. Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
  background-color: var(--color-bg);
  letter-spacing: -0.01em;
}

/* Typography - Hungarian Language Support */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); font-family: var(--font-sans); font-weight: 600; }
h6 { font-size: var(--font-size-base); font-family: var(--font-sans); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   4. Utilities
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid Utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 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-width: 0;
}

/* ==========================================================================
   5. Components
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn--primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn--primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-secondary);
  color: var(--color-neutral-700);
  border-color: var(--color-secondary);
}

.btn--secondary:hover:not(:disabled) {
  background-color: var(--color-secondary-hover);
  border-color: var(--color-secondary-hover);
  transform: translateY(-1px);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover:not(:disabled) {
  background-color: var(--color-primary-light);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn--ghost:hover:not(:disabled) {
  background-color: var(--color-neutral-100);
}

/* Form Inputs */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input::placeholder {
  color: var(--color-neutral-400);
}

.input:hover {
  border-color: var(--color-neutral-400);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(125, 139, 111, 0.15);
}

.input:disabled {
  background-color: var(--color-neutral-100);
  color: var(--color-neutral-400);
  cursor: not-allowed;
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

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

.card--flat {
  box-shadow: none;
  border: 1px solid var(--color-neutral-200);
}

/* ==========================================================================
   6. Accessibility
   ========================================================================== */
@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;
  }
  
  html {
    scroll-behavior: auto;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --color-text: #000000;
    --color-bg: #FFFFFF;
    --color-primary: #005000;
  }
  
  .card {
    border: 2px solid currentColor;
  }
}

/* Focus Visible Polyfill Support */
.js-focus-visible :focus:not(.focus-visible) {
  outline: none;
}