/* 
 * سیستم طراحی بصری زاگرس پارت
 * شامل: Color System, Typography, Shadows, Visual Hierarchy
 */

/* ===============================
   COLOR SYSTEM - سیستم رنگ‌ها
   =============================== */

:root {
  /* Primary Colors - رنگ‌های اصلی */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;  /* Main Brand Color */
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

  /* Secondary Colors - رنگ‌های ثانویه */
  --secondary-50: #f8fafc;
  --secondary-100: #f1f5f9;
  --secondary-200: #e2e8f0;
  --secondary-300: #cbd5e1;
  --secondary-400: #94a3b8;
  --secondary-500: #64748b;
  --secondary-600: #475569;
  --secondary-700: #334155;
  --secondary-800: #1e293b;
  --secondary-900: #0f172a;

  /* Accent Colors - رنگ‌های تاکیدی */
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-error: #ef4444;
  --accent-info: #3b82f6;

  /* Surface Colors - رنگ‌های سطح */
  --surface-white: #ffffff;
  --surface-light: #f8fafc;
  --surface-medium: #e2e8f0;
  --surface-dark: #1e293b;
  --surface-darker: #0f172a;

  /* Text Colors - رنگ‌های متن */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --text-accent: var(--primary-600);

  /* Background Colors - رنگ‌های پس‌زمینه */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-dark: #0f172a;
  --bg-overlay: rgba(15, 23, 42, 0.8);
}

/* ===============================
   TYPOGRAPHY SYSTEM - سیستم تایپوگرافی
   =============================== */

.text-display-1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-display-2 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.text-heading-1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.text-heading-2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
}

.text-heading-3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

.text-body-large {
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.6;
}

.text-body-medium {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}

.text-body-small {
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
}

.text-caption {
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.4;
}

/* ===============================
   SHADOW SYSTEM - سیستم سایه‌ها
   =============================== */

.shadow-minimal {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.shadow-soft {
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.shadow-medium {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.shadow-large {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.shadow-extra-large {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.shadow-brand {
  box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.15);
}

.shadow-brand-hover {
  box-shadow: 0 8px 25px 0 rgba(14, 165, 233, 0.25);
}

/* ===============================
   VISUAL HIERARCHY - سلسله مراتب بصری
   =============================== */

/* Primary Elements - المان‌های اصلی */
.hierarchy-primary {
  background: var(--primary-500);
  color: var(--text-inverse);
  box-shadow: var(--shadow-brand);
  font-weight: 600;
  transform: scale(1.02);
  z-index: 10;
}

/* Secondary Elements - المان‌های ثانویه */
.hierarchy-secondary {
  background: var(--surface-white);
  color: var(--text-primary);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--secondary-200);
}

/* Tertiary Elements - المان‌های سوم */
.hierarchy-tertiary {
  background: var(--surface-light);
  color: var(--text-secondary);
  box-shadow: var(--shadow-soft);
}

/* Muted Elements - المان‌های کم‌رنگ */
.hierarchy-muted {
  background: var(--surface-medium);
  color: var(--text-muted);
  box-shadow: var(--shadow-minimal);
}

/* ===============================
   COMPONENT STYLES - استایل کامپوننت‌ها
   =============================== */

/* Enhanced Cards */
.card-primary {
  background: var(--surface-white);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--secondary-100);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.card-featured {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: var(--text-inverse);
  box-shadow: var(--shadow-brand);
}

.card-featured:hover {
  box-shadow: var(--shadow-brand-hover);
  transform: translateY(-4px) scale(1.02);
}

/* Enhanced Buttons */
.btn-primary {
  background: var(--primary-500);
  color: var(--text-inverse);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  box-shadow: var(--shadow-brand);
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--primary-600);
  box-shadow: var(--shadow-brand-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface-white);
  color: var(--primary-600);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--primary-200);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--primary-50);
  box-shadow: var(--shadow-medium);
  transform: translateY(-1px);
}

/* Enhanced Navigation */
.nav-enhanced {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--secondary-100);
  box-shadow: var(--shadow-soft);
}

/* Enhanced Search Box */
.search-enhanced {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  border: 2px solid transparent;
  box-shadow: var(--shadow-medium);
  transition: all 0.3s ease;
}

.search-enhanced:focus-within {
  border-color: var(--primary-400);
  box-shadow: var(--shadow-brand);
}

/* ===============================
   SPACING SYSTEM - سیستم فاصله‌گذاری
   =============================== */

.space-section {
  margin-top: 4rem;
  margin-bottom: 4rem;
}

.space-component {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.space-element {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

/* ===============================
   ANIMATION ENHANCEMENTS - بهبود انیمیشن‌ها
   =============================== */

.animate-fade-in-smooth {
  animation: fadeInSmooth 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInSmooth {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-slide-up-smooth {
  animation: slideUpSmooth 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

/* ===============================
   RESPONSIVE ADJUSTMENTS - تنظیمات ریسپانسیو
   =============================== */

@media (max-width: 640px) {
  .text-display-1 { font-size: 2.5rem; }
  .text-display-2 { font-size: 2rem; }
  .text-heading-1 { font-size: 1.875rem; }
  .text-heading-2 { font-size: 1.5rem; }
  
  .card-primary {
    padding: 1rem;
  }
  
  .space-section {
    margin-top: 2rem;
    margin-bottom: 2rem;
  }
}

/* ===============================
   ACCESSIBILITY ENHANCEMENTS - بهبود دسترسی‌پذیری
   =============================== */

@media (prefers-reduced-motion: reduce) {
  .card-primary,
  .btn-primary,
  .btn-secondary {
    transition: none;
  }
  
  .animate-fade-in-smooth,
  .animate-slide-up-smooth {
    animation: none;
  }
}

@media (prefers-contrast: high) {
  .card-primary {
    border-width: 2px;
    border-color: var(--text-primary);
  }
  
  .btn-primary,
  .btn-secondary {
    border-width: 2px;
  }
}

/* ===============================
   UTILITY CLASSES - کلاس‌های کمکی
   =============================== */

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
}

.bg-gradient-secondary {
  background: linear-gradient(135deg, var(--secondary-100) 0%, var(--secondary-200) 100%);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-gradient {
  border: 2px solid transparent;
  background: linear-gradient(var(--surface-white), var(--surface-white)) padding-box,
              linear-gradient(135deg, var(--primary-400), var(--primary-600)) border-box;
}

/* Focus States */
.focus-ring:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

.focus-ring-inset:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: -2px;
}