:root {
  --primary: #2d8c3c;
  --primary-dark: #1e6b2b;
  --primary-light: #4caf50;
  --accent: #d4a843;
  --accent-light: #f0d078;
  --bg: #f5f7f5;
  --card: #ffffff;
  --text: #2c3e2c;
  --text-light: #6b7c6b;
  --border: #e0e8e0;
  --danger: #e74c3c;
  --success: #27ae60;
  --shadow: 0 2px 12px rgba(45, 140, 60, 0.08);
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; }

/* ============ Navbar ============ */
.navbar {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.navbar .logo { color: #fff; font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.navbar .logo span { color: var(--accent); }
.navbar nav { display: flex; gap: 4px; }
.navbar nav a { color: rgba(255,255,255,0.85); padding: 8px 16px; border-radius: 8px; font-size: 15px; transition: all 0.2s; }
.navbar nav a:hover, .navbar nav a.active { background: rgba(255,255,255,0.15); color: #fff; }
.navbar .user-area { display: flex; align-items: center; gap: 12px; }
.navbar .user-area a { color: rgba(255,255,255,0.9); font-size: 14px; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 20px; border: none; border-radius: 8px; font-size: 14px; cursor: pointer; transition: all 0.2s; font-weight: 500; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #c49530; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { width: 100%; justify-content: center; }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(135deg, #1a5c28 0%, #2d8c3c 40%, #3da84d 100%);
  color: #fff; text-align: center; padding: 80px 24px 60px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero h1 { font-size: 42px; font-weight: 800; margin-bottom: 16px; position: relative; text-shadow: 0 2px 4px rgba(0,0,0,0.2); }
.hero h1 em { font-style: normal; color: var(--accent-light); }
.hero p { font-size: 18px; opacity: 0.9; margin-bottom: 32px; position: relative; max-width: 600px; margin-left: auto; margin-right: auto; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; position: relative; flex-wrap: wrap; }
.hero .btn { padding: 14px 32px; font-size: 16px; border-radius: 50px; }

/* ============ Stats ============ */
.stats-bar {
  background: var(--card); margin: -30px auto 0; max-width: 1000px; border-radius: var(--radius);
  display: grid; grid-template-columns: repeat(4, 1fr); padding: 24px; box-shadow: var(--shadow);
  position: relative; z-index: 10;
}
.stat-item { text-align: center; padding: 12px; }
.stat-item .num { font-size: 32px; font-weight: 800; color: var(--primary); }
.stat-item .label { font-size: 14px; color: var(--text-light); margin-top: 4px; }

/* ============ Section ============ */
.section { max-width: 1200px; margin: 0 auto; padding: 60px 24px; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 28px; color: var(--text); margin-bottom: 8px; }
.section-title p { color: var(--text-light); font-size: 16px; }
.section-title .line { width: 60px; height: 3px; background: var(--accent); margin: 12px auto 0; border-radius: 2px; }

/* ============ Cards ============ */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.card {
  background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s; border: 1px solid var(--border);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(45, 140, 60, 0.12); }
.card-img { width: 100%; height: 180px; object-fit: cover; background: linear-gradient(135deg, #e8f5e9, #c8e6c9); display: flex; align-items: center; justify-content: center; font-size: 48px; }
.card-body { padding: 20px; }
.card-body h3 { font-size: 18px; margin-bottom: 8px; }
.card-body .meta { display: flex; gap: 12px; color: var(--text-light); font-size: 13px; margin-bottom: 8px; flex-wrap: wrap; }
.card-body .tag { display: inline-block; background: #e8f5e9; color: var(--primary); padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.card-body .price { color: var(--danger); font-size: 20px; font-weight: 700; margin-top: 8px; }
.card-body .price small { font-size: 13px; font-weight: 400; color: var(--text-light); }
.card-body .rating { color: var(--accent); }

/* ============ Service Cards ============ */
.service-card {
  background: var(--card); border-radius: var(--radius); padding: 32px; text-align: center;
  box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.2s;
}
.service-card:hover { border-color: var(--primary); }
.service-card .icon { font-size: 48px; margin-bottom: 16px; }
.service-card h3 { font-size: 20px; margin-bottom: 8px; color: var(--primary-dark); }
.service-card p { color: var(--text-light); font-size: 14px; }

/* ============ Filter Bar ============ */
.filter-bar {
  display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; padding: 16px;
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
}
.filter-bar select, .filter-bar input {
  padding: 8px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px;
  background: #fff; min-width: 120px;
}
.filter-bar select:focus, .filter-bar input:focus { outline: none; border-color: var(--primary); }

/* ============ Auth Pages ============ */
.auth-container {
  max-width: 440px; margin: 60px auto; padding: 40px; background: var(--card);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.auth-container h2 { text-align: center; margin-bottom: 24px; color: var(--primary-dark); }
.auth-tabs { display: flex; margin-bottom: 24px; border-bottom: 2px solid var(--border); }
.auth-tabs button { flex: 1; padding: 12px; border: none; background: none; font-size: 16px; cursor: pointer; color: var(--text-light); border-bottom: 2px solid transparent; margin-bottom: -2px; }
.auth-tabs button.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* ============ Forms ============ */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 14px; transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(45,140,60,0.1); }
.form-group textarea { min-height: 80px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============ Pagination ============ */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 32px; }
.pagination button { width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 8px; background: #fff; cursor: pointer; transition: all 0.2s; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:hover:not(.active) { border-color: var(--primary); color: var(--primary); }

/* ============ Modal ============ */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 24px; }
.modal { background: var(--card); border-radius: var(--radius); padding: 32px; max-width: 520px; width: 100%; max-height: 90vh; overflow-y: auto; }
.modal h3 { margin-bottom: 20px; font-size: 20px; }
.modal .close-btn { float: right; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-light); }

/* ============ Footer ============ */
.footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.8); text-align: center;
  padding: 32px 24px; margin-top: 60px;
}
.footer a { color: var(--accent-light); }
.footer .links { display: flex; gap: 24px; justify-content: center; margin-bottom: 16px; }

/* ============ Toast ============ */
.toast {
  position: fixed; top: 80px; right: 24px; padding: 14px 24px; border-radius: 8px; color: #fff;
  font-size: 14px; z-index: 300; animation: slideIn 0.3s ease; box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
@keyframes slideIn { from { transform: translateX(100px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ============ Responsive ============ */
@media (max-width: 768px) {
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 15px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); margin: -20px 16px 0; }
  .stat-item .num { font-size: 24px; }
  .card-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .navbar nav { display: none; }
  .navbar .mobile-menu { display: block; color: #fff; font-size: 24px; cursor: pointer; }
  .section { padding: 40px 16px; }
}
@media (min-width: 769px) {
  .navbar .mobile-menu { display: none; }
}

/* ============ Land Card specifics ============ */
.land-area { font-size: 15px; color: var(--primary); font-weight: 600; }
.budget { color: var(--danger); font-weight: 600; }

/* ============ Product Card ============ */
.product-img {
  width: 100%; height: 200px; background: linear-gradient(135deg, #fff8e1, #ffecb3);
  display: flex; align-items: center; justify-content: center; font-size: 48px;
}
.product-card .sales-info { font-size: 12px; color: var(--text-light); }

/* ============ About Section ============ */
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about-content img { border-radius: var(--radius); }
@media (max-width: 768px) { .about-content { grid-template-columns: 1fr; } }

/* ============ Empty State ============ */
.empty-state { text-align: center; padding: 60px 24px; color: var(--text-light); }
.empty-state .icon { font-size: 64px; margin-bottom: 16px; }