/**
 * Theme and Language Styles
 * استایل‌های تم و زبان
 */

/* ==================== CSS Variables ==================== */
:root {
  /* Light Theme Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-text-primary: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-shadow-light: rgba(0, 0, 0, 0.05);
  
  /* Brand Colors */
  --color-primary: #dc2626;
  --color-primary-hover: #b91c1c;
  --color-primary-light: #fef2f2;
  
  /* Status Colors */
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;
  --color-info: #0284c7;
  
  /* Fonts */
  --font-primary: 'Vazirmatn', 'Tahoma', sans-serif;
  --font-secondary: 'Inter', 'Arial', sans-serif;
}

/* Dark Theme Colors */
[data-theme="dark"] {
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-border: #334155;
  --color-border-light: #475569;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-light: rgba(0, 0, 0, 0.2);
  
  --color-primary: #ef4444;
  --color-primary-hover: #dc2626;
  --color-primary-light: #1e293b;
}

/* ==================== Base Styles ==================== */
* {
  transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

html {
  color-scheme: light;
}

[data-theme="dark"] html {
  color-scheme: dark;
}

body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
}

/* ==================== Theme Toggle Button ==================== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.5rem;
}

.theme-toggle:hover {
  background: var(--color-bg-tertiary);
  transform: scale(1.2) rotate(20deg);
}

.theme-toggle:active {
  transform: scale(1.1) rotate(10deg);
}

.theme-icon {
  font-size: 1.5rem;
  display: flex;
  align-items: center;
}

.theme-text {
  display: none;
}

/* ==================== Language Selector ==================== */
.language-selector {
  position: relative;
  display: inline-block;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 120px;
}

.lang-toggle:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.lang-toggle i {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transition: transform 0.3s ease;
}

.language-selector.open .lang-toggle i {
  transform: rotate(180deg);
}

.lang-flag {
  font-size: 1.2rem;
}

.lang-name {
  flex: 1;
  text-align: right;
  white-space: nowrap;
}

[dir="ltr"] .lang-name {
  text-align: left;
}

/* Language Dropdown */
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 10px 40px var(--color-shadow);
  backdrop-filter: blur(10px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  overflow: hidden;
}

.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 400;
  text-align: right;
}

[dir="ltr"] .lang-option {
  text-align: left;
}

.lang-option:hover {
  background: var(--color-bg-secondary);
}

.lang-option.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 500;
}

.lang-option .fas.fa-check {
  color: var(--color-primary);
  margin-right: auto;
  font-size: 0.875rem;
}

[dir="ltr"] .lang-option .fas.fa-check {
  margin-left: auto;
  margin-right: 0;
}

/* ==================== Navigation Adjustments ==================== */
.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links .theme-toggle,
.nav-links .language-selector {
  margin-left: 0.5rem;
}

[dir="ltr"] .nav-links .theme-toggle,
[dir="ltr"] .nav-links .language-selector {
  margin-right: 0.5rem;
  margin-left: 0;
}

/* ==================== Dark Theme Specific Adjustments ==================== */

/* Header/Navigation Dark Theme */
[data-theme="dark"] .header {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
}

[data-theme="dark"] .nav-links a {
  color: var(--color-text-secondary);
}

[data-theme="dark"] .nav-links a:hover {
  color: var(--color-text-primary);
}

/* Property Cards Dark Theme */
[data-theme="dark"] .property-card {
  background: var(--card-bg);
  border-color: var(--card-border);
  box-shadow: 0 4px 12px var(--card-shadow);
}

[data-theme="dark"] .property-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px var(--card-shadow);
}

/* Form Controls Dark Theme */
[data-theme="dark"] .search-bar input,
[data-theme="dark"] .search-bar select {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--input-text);
}

[data-theme="dark"] .search-bar input:focus,
[data-theme="dark"] .search-bar select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* ==================== Language-Specific Styles ==================== */
/* Persian & Arabic (RTL) */
.lang-fa,
.lang-ar {
  direction: rtl;
  text-align: right;
}

.lang-fa * {
  font-family: 'Vazirmatn', 'Tahoma', sans-serif;
}

.lang-ar * {
  font-family: 'Cairo', 'Tahoma', sans-serif;
}

/* English, French, Russian (LTR) */
.lang-en,
.lang-fr, 
.lang-ru {
  direction: ltr;
  text-align: left;
}

.lang-en *,
.lang-fr *,
.lang-ru * {
  font-family: 'Inter', 'Arial', sans-serif;
}

/* ==================== Image Contrast Preservation ==================== */
[data-theme="dark"] img {
  filter: brightness(0.9) contrast(1.1);
}

[data-theme="dark"] .property-image {
  filter: brightness(0.9) contrast(1.1);
}

/* Property images should maintain their natural appearance */
[data-theme="dark"] .property-card img,

/* ==================== Mobile Responsive ==================== */
@media (max-width: 768px) {
  .nav-links {
    gap: 0.5rem;
  }
  
  .theme-toggle,
  .lang-toggle {
    padding: 0;
    min-width: unset;
    font-size: 1.5rem;
  }
  
  .theme-text,
  .lang-name {
    display: none;
  }
  
  .theme-toggle {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    justify-content: center;
    background: transparent;
    border: none;
  }
  
  .lang-toggle {
    min-width: 60px;
  }
  
  .lang-dropdown {
    min-width: 150px;
  }
}

/* ==================== Animation Enhancements ==================== */
.theme-toggle,

.theme-toggle::before,
.lang-toggle::before {
  display: none;
}

.theme-toggle:active::before,
.lang-toggle:active::before {
  display: none;
}

/* ==================== High Contrast Mode Support ==================== */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-shadow: rgba(0, 0, 0, 0.5);
  }
  
  [data-theme="dark"] {
    --color-border: #ffffff;
    --color-text-primary: #ffffff;
    --color-bg-primary: #000000;
  }
}

/* ==================== Reduced Motion Support ==================== */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
  
  .lang-dropdown {
    transition: opacity 0.1s ease;
  }
}