:root {
  --bg: #0d1117;
  --text: #e6eefc;
  --card: #161b22;
  --glow: #00d9ff;
}

body {
  background: var(--bg);
  color: var(--text);
  margin: 0;
  font-family: sans-serif;
  transition: 0.3s;
}

header {
  text-align: center;
  padding: 40px 0;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 30px;
}

.card {
  background: var(--card);
  border-radius: 15px;
  padding: 20px;
  width: 250px;
  text-align: center;
  color: var(--text);
  text-decoration: none;
  transition: 0.3s;
  box-shadow: 0 0 15px var(--glow);
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 0 25px var(--glow);
}

/* دکمه شناور */
.toggle-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background: #1b1b1b;
  color: #00d9ff;
  border: 2px solid #00d9ff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 24px;
  box-shadow: 0 0 12px #00d9ff;
  transition: all 0.3s;
  z-index: 999;
}

.toggle-btn:hover {
  transform: scale(1.1);
}

body.light .toggle-btn {
  background: #fff8e1;
  color: #ffb300;
  border: 2px solid #ffb300;
  box-shadow: 0 0 12px #ffb300;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  padding: 30px;
}

.card {
  display: block;
  background: #111;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
}

.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.card h3 {
  font-size: 16px;
  margin: 10px 10px 6px;
}

.game-meta {
  display: flex;
  gap: 8px;
  padding: 0 10px 10px;
}

.badge {
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 12px;
}

.badge.version {
  background: #00e5ff;
  color: #000;
}

.badge.size {
  background: #222;
  color: #fff;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  padding: 30px;
}

.card {
  background: #111;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  transition: 0.3s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
}

.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.card h3 {
  font-size: 16px;
  margin: 10px 10px 6px;
}

.game-meta {
  display: flex;
  gap: 8px;
  padding: 0 10px;
  margin-bottom: 10px;
}

.badge {
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 12px;
}

.badge.version {
  background: #00e5ff;
  color: #000;
}

.badge.size {
  background: #222;
  color: #fff;
}

/* دکمه رفتن به صفحه بازی */
.game-link-btn {
  margin: 0 10px 12px;
  margin-top: auto;          /* دکمه بره پایین کارت بچسبه */
  display: inline-block;
  text-align: center;
  padding: 8px 12px;
  border-radius: 8px;
  background: #00e5ff;
  color: #000;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.25s;
}

.game-link-btn:hover {
  background: #00bcd4;
  transform: translateY(-1px);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.books-container{
max-width:1200px;
margin:auto;
padding:40px 20px;
}

.books-grid{
display:grid;
grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
gap:20px;
}

.book-card{
background:#161b22;
border-radius:14px;
padding:15px;
text-align:center;
transition:0.3s;
}

.book-card:hover{
transform:translateY(-6px);
box-shadow:0 10px 20px rgba(0,0,0,0.4);
}

.book-card img{
width:100%;
height:220px;
object-fit:cover;
border-radius:10px;
}

.book-card h3{
margin:12px 0;
font-size:16px;
}

.book-info{
display:flex;
justify-content:space-between;
font-size:13px;
margin-bottom:12px;
color:#aaa;
}

.book-btn{
display:block;
background:#00bcd4;
color:white;
padding:10px;
border-radius:8px;
text-decoration:none;
font-weight:bold;
}

.book-btn:hover{
background:#0097a7;
}

.download-btn{
display:inline-block;
background:#4CAF50;
color:white;
padding:12px 20px;
border-radius:8px;
text-decoration:none;
font-weight:bold;
margin-top:10px;
}

.download-btn:hover{
background:#3e8e41;
}

.blog-container{
max-width:1100px;
margin:auto;
padding:40px 20px;
}

.blog-title{
font-size:28px;
margin-bottom:30px;
}

.blog-grid{
display:grid;
gap:25px;
}

.blog-card{
display:flex;
background:#111827;
border-radius:14px;
overflow:hidden;
transition:0.3s;
}

.blog-card:hover{
transform:translateY(-5px);
box-shadow:0 10px 25px rgba(0,0,0,0.4);
}

.blog-card img{
width:280px;
object-fit:cover;
}

.blog-card-content{
padding:20px;
flex:1;
}

.blog-card h2{
margin:0 0 10px;
font-size:20px;
}

.blog-excerpt{
color:#bbb;
font-size:14px;
margin-bottom:12px;
}

.blog-meta{
font-size:13px;
color:#888;
display:flex;
gap:15px;
margin-bottom:12px;
}

.blog-btn{
background:#00bcd4;
color:white;
padding:8px 14px;
border-radius:6px;
text-decoration:none;
font-weight:bold;
}

.blog-btn:hover{
background:#0097a7;
}

/* تم شب (پیشفرض) */
body{
background:
linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.65)),
url("images/bg-dark.jpg");

background-size:cover;
background-position:center;
background-attachment:fixed;
}


/* تم روز */
body.light{
background:
linear-gradient(rgba(255,255,255,0.6), rgba(255,255,255,0.6)),
url("images/bg-light.webp.jpeg");

background-size:cover;
background-position:center;
background-attachment:fixed;
}