:root {
  --green: #1D9E75;
  --green-dark: #0F6E56;
  --green-light: #E1F5EE;
  --bg: #ffffff;
  --bg-secondary: #f7f8f6;
  --text: #1a1a1a;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --radius: 10px;
  --radius-sm: 6px;
}

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

body {
  font-family: Tahoma, 'Segoe UI', 'Vazir', sans-serif;
  direction: rtl;
  background: var(--bg-secondary);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}

/* Header */
.header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}

.nav a:hover { color: var(--green); }

.btn-write {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 7px 16px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background 0.15s;
}

.btn-write:hover { background: var(--green-dark); }

/* Layout */
.container {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 1.5rem;
  max-width: 940px;
  margin: 2rem auto;
  padding: 0 1.25rem;
}

/* Posts */
.posts-section { display: flex; flex-direction: column; gap: 1rem; }
.posts-list { display: flex; flex-direction: column; gap: 1rem; }

.post-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  text-decoration: none;
  display: block;
  color: inherit;
}

.post-card:hover {
  border-color: var(--green);
  box-shadow: 0 2px 8px rgba(29,158,117,0.08);
}

.post-tag {
  display: inline-block;
  font-size: 11px;
  background: var(--green-light);
  color: var(--green-dark);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
  margin-bottom: 8px;
  font-weight: 500;
}

.post-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.5;
}

.post-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: #9ca3af;
}

/* Sidebar */
.sidebar { display: flex; flex-direction: column; gap: 1rem; }

.widget {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.widget-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
}

.stat-row:last-child { border-bottom: none; }
.stat-num { font-weight: 600; color: var(--green); }

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  font-size: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  display: inline-block;
}

.tag:hover { border-color: var(--green); color: var(--green); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
}

.empty-state h3 { margin-bottom: 0.5rem; color: var(--text); }

/* Write page */
.write-page {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-top: 0;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  direction: rtl;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.15s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(29,158,117,0.1);
}

.form-group textarea { resize: vertical; line-height: 1.7; }

.btn-submit {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 20px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}

.btn-submit:hover { background: var(--green-dark); }

.btn-cancel {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 20px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.15s;
}

.btn-cancel:hover { border-color: var(--text-secondary); }

.error-msg {
  color: #dc2626;
  font-size: 13px;
  margin-top: 8px;
  padding: 8px 12px;
  background: #fef2f2;
  border-radius: var(--radius-sm);
  border: 1px solid #fecaca;
}

/* Post full page */
.post-full {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.post-full-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin: 10px 0 1rem;
}

.post-body { margin-top: 1.5rem; }
.post-body p { margin-bottom: 1rem; }
.post-body h2 { font-size: 18px; margin: 1.5rem 0 0.75rem; }
.post-body h3 { font-size: 16px; margin: 1.25rem 0 0.5rem; }
.post-body ul { padding-right: 1.25rem; margin-bottom: 1rem; }
.post-body li { margin-bottom: 0.4rem; }
.post-body strong { font-weight: 600; }

/* Responsive */
@media (max-width: 680px) {
  .container { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .header { flex-wrap: wrap; gap: 0.75rem; }
}