/**
 * ZENPOSE - CUSTOM STYLES
 * Additional styles to complement Tailwind CSS
 */

/* ============================================================
   1. CSS VARIABLES (Color Palette)
   ============================================================ */

:root {
  /* Brand Colors */
  --color-primary: #0F766E;
  --color-primary-light: #14B8A6;
  --color-primary-dark: #065F46;
  --color-secondary: #F59E0B;
  --color-secondary-light: #FCD34D;
  --color-secondary-dark: #D97706;
  --color-accent: #EC4899;
  --color-accent-light: #F9A8D4;
  --color-accent-dark: #BE185D;
  
  /* Neutral Colors */
  --color-neutral-light: #F8FAFC;
  --color-neutral: #64748B;
  --color-neutral-dark: #0F172A;
  
  /* Background Colors */
  --color-bg-light: #FFFFFF;
  --color-bg-gray: #F1F5F9;
  --color-bg-dark: #1E293B;
  
  /* Text Colors */
  --color-text-primary: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;
  
  /* Status Colors */
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;
  
  /* Fonts */
  --font-display: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Transitions */
  --transition-speed-fast: 0.2s;
  --transition-speed: 0.3s;
  --transition-speed-slow: 0.5s;
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
}

/* ============================================================
   2. BASE STYLES
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   3. ANIMATIONS
   ============================================================ */

/* Fade-in animation for sections */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Apply animations */
.animate-fade-in {
  animation: fadeInUp 0.6s var(--transition-timing) forwards;
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s var(--transition-timing), transform 0.6s var(--transition-timing);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   4. FOCUS STYLES (Accessibility)
   ============================================================ */

*:focus {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip to content link */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  z-index: 9999;
  padding: 1rem 1.5rem;
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: 0 0 0.5rem 0;
  font-weight: 600;
  transition: top var(--transition-speed) var(--transition-timing);
}

.skip-to-content:focus {
  top: 0;
  outline: none;
}

/* Screen reader only */
.sr-only:not(:focus):not(:focus-within) {
  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. MOBILE MENU
   ============================================================ */

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-light);
  z-index: 9998;
  padding: 2rem;
  transform: translateX(-100%);
  transition: transform var(--transition-speed) var(--transition-timing);
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-btn {
  position: relative;
  z-index: 9999;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-timing);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  position: relative;
  transition: background-color var(--transition-speed) var(--transition-timing);
}

.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  transition: all var(--transition-speed) var(--transition-timing);
}

.mobile-menu-btn span::before {
  top: -8px;
}

.mobile-menu-btn span::after {
  top: 8px;
}

.mobile-menu-btn.active span {
  background-color: transparent;
}

.mobile-menu-btn.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-btn.active span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ============================================================
   6. CUSTOM SCROLLBAR
   ============================================================ */

/* For Webkit browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}

/* For Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-bg-gray);
}

/* ============================================================
   7. SELECTION STYLES
   ============================================================ */

::selection {
  background-color: var(--color-primary-light);
  color: white;
}

::-moz-selection {
  background-color: var(--color-primary-light);
  color: white;
}

/* ============================================================
   8. LOADING STATES
   ============================================================ */

.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--color-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================================
   9. UTILITY CLASSES
   ============================================================ */

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Gradient backgrounds */
.gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.gradient-secondary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
}

.gradient-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
}

/* Backdrop blur */
.backdrop-blur-custom {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Text shadows */
.text-shadow-sm {
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.text-shadow-md {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.text-shadow-lg {
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* ============================================================
   10. RESPONSIVE UTILITIES
   ============================================================ */

@media (max-width: 640px) {
  body {
    font-size: 14px;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
}

/* ============================================================
   11. PRINT STYLES
   ============================================================ */

@media print {
  *,
  *::before,
  *::after {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  a,
  a:visited {
    text-decoration: underline;
  }
  
  a[href]::after {
    content: " (" attr(href) ")";
  }
  
  abbr[title]::after {
    content: " (" attr(title) ")";
  }
  
  img {
    max-width: 100% !important;
  }
  
  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }
  
  h2,
  h3 {
    page-break-after: avoid;
  }
  
  header,
  footer,
  nav,
  .no-print {
    display: none !important;
  }
}