body {
  font-family: sans-serif;
  background: #111;
  color: #fff;
  margin: 0;
}

header, footer {
  text-align: center;
  padding: 20px;
  background: #000;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 20px;
  padding: 20px;
}

.card {
  background: #222;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 0 10px #000;
}

.card img {
  width: 100%;
  border-radius: 10px;
}

input, textarea, button {
  width: 100%;
  margin-top: 10px;
  padding: 10px;
  border-radius: 5px;
  border: none;
}
button {
  background: darkred;
  color: white;
  cursor: pointer;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding: 20px;
}

/* کارت پست */
.card {
  background: #222;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.6);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

/* نسبت 6×4 برای عکس */
.card img {
  width: 100%;
  aspect-ratio: 3 / 2;   /* 🔥 نسبت 6×4 */
  object-fit: cover;
  display: block;
}

/* محتوای کارت */
.card h3 {
  margin: 10px;
  font-size: 16px;
}

.card p {
  margin: 0 10px 12px;
  font-size: 14px;
  color: #ccc;
}
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Vazirmatn, Tahoma, sans-serif;
  background: #0b132b;          /* سورمه‌ای تیره */
  color: #eaeaea;
  direction: rtl;               /* 🔥 راست‌چین */
}
header {
  background: linear-gradient(135deg, #1c2541, #0b132b);
  padding: 25px;
  text-align: center;
  border-bottom: 2px solid #3a506b;
}

header h1 {
  margin: 0;
  font-size: 26px;
  color: #ffffff;
}

header p {
  margin-top: 8px;
  color: #a9bcd0;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
  padding: 25px;
}

.card {
  background: #1c2541;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 30px rgba(0,0,0,0.7);
}

.card img {
  width: 100%;
  aspect-ratio: 3 / 2;   /* 6×4 */
  object-fit: cover;
}

.card h3 {
  padding: 10px 14px 0;
  font-size: 16px;
  color: #ffffff;
}

.card p {
  padding: 6px 14px 14px;
  font-size: 14px;
  color: #cbd5e1;
}
input, textarea {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  background: #0b132b;
  border: 1px solid #3a506b;
  border-radius: 6px;
  color: #fff;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

button {
  margin-top: 15px;
  padding: 12px;
  background: #3a86ff;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}

button:hover {
  background: #2563eb;
}
footer {
  background: #1c2541;
  padding: 25px;
  text-align: center;
  border-top: 2px solid #3a506b;
}

footer .card {
  max-width: 400px;
  margin: auto;
  background: #0b132b;
}
footer p {
  margin: 8px 0;
  font-size: 14px;
  color: #eaeaea;
}
/* صفحه نمایش کامل پست */
.post-card {
  max-width: 900px;
  margin: 30px auto;
  background: #1c2541;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.6);
  overflow: hidden;
  padding-bottom: 20px;
}

/* 🔥 عکس با نسبت 8×6 (4:3) */
.post-card img {
  width: 100%;
  aspect-ratio: 4 / 3;   /* 8×6 */
  object-fit: cover;
  display: block;
}

.post-card h2 {
  padding: 15px 20px 0;
  font-size: 22px;
  color: #fff;
}

.post-card p {
  padding: 10px 20px;
  font-size: 15px;
  line-height: 1.9;
  color: #dbeafe;
}