/* استایل اصلی صفحه - سبک اینستاگرام */
:root {
  --bg: #ffffff;
  --bg-secondary: #fafafa;
  --text: #262626;
  --text-secondary: #8e8e8e;
  --accent: #0b84ff;
  --accent-hover: #0a73e6;
  --border: #dbdbdb;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Vazir', 'Yekan Bakh', 'IranSans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, sans-serif;
  background: var(--bg-secondary);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 14px;
}

/* تنظیمات فونت responsive */
@media (max-width: 768px) {
  body {
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 12px;
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* هدر */
.main-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  border-radius: 10px;
  color: white;
  font-size: 24px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(11,132,255,0.3);
}

.brand h1 {
  font-size: 22px;
  font-weight: 800;
  margin: 0;
  color: var(--text);
}

.brand p {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  padding: 8px 16px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  background: var(--bg-secondary);
  color: var(--accent);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(11,132,255,0.1);
}

.btn-register {
  background: var(--accent);
  color: white !important;
  padding: 8px 20px;
}

.btn-register:hover {
  background: var(--accent-hover);
  color: white !important;
}

.btn-logout {
  color: #ef4444 !important;
}

.btn-logout:hover {
  background: rgba(239,68,68,0.1);
  color: #ef4444 !important;
}

/* محتوای اصلی */
.main-content {
  flex: 1;
  padding: 24px 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* فیلترها */
.filters-section {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.filters {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-group label {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  white-space: nowrap;
}

.filter-select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  min-width: 150px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(11,132,255,0.1);
}

.btn-filter {
  padding: 8px 20px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-filter:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* گرید تبلیغات - سبک اینستاگرام */
.ads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.ad-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.ad-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}

.ad-image {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-secondary);
  position: relative;
}

.ad-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.ad-card:hover .ad-image img {
  transform: scale(1.05);
}

.ad-content {
  padding: 16px;
}

.ad-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ad-description {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ad-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.ad-platform,
.ad-category {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
}

.ad-button-container {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.ad-link-button {
  display: block;
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  color: white !important;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(11,132,255,0.3);
}

.ad-link-button:hover {
  background: linear-gradient(135deg, var(--accent-hover), #2563eb);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11,132,255,0.4);
}

.ad-link-button span {
  display: inline-block;
}

/* حالت خالی */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

.empty-state h2 {
  font-size: 24px;
  margin-bottom: 8px;
  color: var(--text);
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* صفحه‌بندی */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.page-link {
  padding: 8px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  min-width: 40px;
  text-align: center;
}

.page-link:hover {
  background: var(--bg-secondary);
  border-color: var(--accent);
  color: var(--accent);
}

.page-link.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* فوتر */
.main-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: auto;
}

/* ریسپانسیو */
@media (max-width: 768px) {
  .header-content {
    padding: 12px 16px;
  }
  
  .brand h1 {
    font-size: 18px;
  }
  
  .brand p {
    font-size: 11px;
  }
  
  .main-nav {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
  }
  
  .nav-link {
    font-size: 13px;
    padding: 6px 12px;
  }
  
  .main-content {
    padding: 16px;
  }
  
  .filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-select {
    width: 100%;
  }
  
  .btn-filter {
    width: 100%;
  }
  
  .ads-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }
  
  .ad-content {
    padding: 12px;
  }
  
  .ad-title {
    font-size: 14px;
  }
  
  .ad-description {
    font-size: 12px;
  }
  
  .ad-meta {
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .ads-grid {
    grid-template-columns: 1fr;
  }
  
  .ad-image {
    aspect-ratio: 1;
  }
  
  .pagination {
    gap: 4px;
  }
  
  .page-link {
    padding: 6px 12px;
    font-size: 12px;
    min-width: 36px;
  }
}

/* انیمیشن‌ها */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ad-card {
  animation: fadeIn 0.3s ease-out;
}

/* اسکرول بار سفارشی */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}