/* ===== BODY ===== */
body{
margin:0;
font-family:'Poppins',sans-serif;
background:linear-gradient(135deg,#ffffff,#f8fafc,#eef2ff);
color:#1e293b;
}

/* ===== TOP BANNER ===== */
.top-banner{
text-align:center;
padding:14px;
background:linear-gradient(45deg,#4f46e5,#9333ea);
color:#fff;
font-weight:600;
font-size:15px;
letter-spacing:0.5px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

/* ===== SLIDER ===== */
.ad-slider{
overflow-x:auto;
scroll-snap-type:x mandatory;
-webkit-overflow-scrolling:touch;
margin:20px;
padding:5px;
border-radius:20px;
}

.ad-slider::-webkit-scrollbar{
display:none;
}

.ad-track{
display:flex;
gap:15px;
}

.ad-card{
flex:0 0 85%;
height:200px;
border-radius:20px;
overflow:hidden;
box-shadow:0 10px 25px rgba(0,0,0,0.15);
scroll-snap-align:center;
transition:0.3s;
}

.ad-card:active{
transform:scale(0.96);
}

.ad-card img{
width:100%;
height:100%;
object-fit:cover;
}

/* ===== HEADING ===== */
.heading{
text-align:center;
margin:25px 10px;
font-size:20px;
font-weight:700;
color:#4f46e5;
}

/* ===== COUPONS GRID ===== */
.coupon-container{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:20px;
padding:20px;
}

/* ===== CARD ===== */
.coupon-card{
background:rgba(255,255,255,0.9);
backdrop-filter:blur(10px);
border-radius:20px;
padding:20px;
box-shadow:0 10px 30px rgba(0,0,0,0.12);
position:relative;
transition:0.3s;
border:1px solid rgba(255,255,255,0.3);
}

.coupon-card:hover{
transform:translateY(-6px) scale(1.01);
}

/* ===== BADGE ===== */
.badge{
position:absolute;
top:10px;
right:10px;
padding:5px 12px;
border-radius:20px;
font-size:11px;
font-weight:600;
}

.available{
background:#22c55e;
color:#fff;
}

.unavailable{
background:#ef4444;
color:#fff;
}

/* ===== LOGO ===== */
.logo{
width:65px;
display:block;
margin:0 auto 10px;
}

/* ===== TEXT ===== */
.title{
text-align:center;
font-weight:600;
font-size:15px;
margin-top:5px;
}

.discount{
text-align:center;
font-size:24px;
color:#4f46e5;
margin:10px 0;
font-weight:700;
}

/* ===== SCRATCH BOX ===== */
.code-box{
position:relative;
background:#f1f5f9;
padding:16px;
border-radius:14px;
text-align:center;
overflow:hidden;
box-shadow:inset 0 2px 6px rgba(0,0,0,0.05);
}

.code-box span{
font-weight:bold;
letter-spacing:2px;
font-size:15px;
}

/* canvas */
canvas{
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
}

/* scratch text */
.scratch-text{
position:absolute;
top:50%;
left:50%;
transform:translate(-50%,-50%);
color:#64748b;
font-size:12px;
}

/* ===== BUTTON ===== */
.btn{
display:none;
margin-top:15px;
width:100%;
padding:12px;
border:none;
border-radius:12px;
background:linear-gradient(135deg,#4f46e5,#7c3aed);
color:white;
font-weight:600;
cursor:pointer;
transition:0.3s;
box-shadow:0 6px 20px rgba(79,70,229,0.3);
}

.btn:hover{
transform:scale(1.05);
}

/* ===== PREMIUM ALERT ===== */
.unlock-alert{
position:fixed;
top:-120px;
left:50%;
transform:translateX(-50%);
display:flex;
align-items:center;
gap:10px;

background:linear-gradient(135deg,#ecfdf5,#d1fae5);
color:#065f46;

padding:14px 22px;
border-radius:50px;

box-shadow:0 10px 30px rgba(0,0,0,0.15);

font-weight:600;
font-size:14px;

transition:all 0.6s ease;
z-index:9999;
}

.unlock-alert.show{
top:25px;
}

/* ===== BIG TICK ===== */
.tick svg{
width:32px;
height:32px;
filter:drop-shadow(0 2px 6px rgba(0,0,0,0.2));
animation:tickPop 0.6s ease;
}

@keyframes tickPop{
0%{transform:scale(0.3) rotate(-20deg);opacity:0;}
60%{transform:scale(1.2) rotate(10deg);}
100%{transform:scale(1) rotate(0deg);opacity:1;}
}

/* ===== CELEBRATION ===== */
.celebration{
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
display:none;
justify-content:center;
align-items:center;
background:rgba(0,0,0,0.25);
z-index:9999;
overflow:hidden;
pointer-events:none;
}

/* popup */
.popup{
background:#fff;
padding:18px 35px;
border-radius:40px;
font-weight:600;
font-size:16px;
z-index:10000;
animation:pop 0.6s ease;
box-shadow:0 10px 30px rgba(0,0,0,0.25);
}

/* balloons */
.balloon{
position:absolute;
bottom:-120px;
width:28px;
height:38px;
border-radius:50%;
opacity:0.9;
animation:floatUp 4s linear forwards;
z-index:10000;
}

.balloon::after{
content:"";
position:absolute;
width:2px;
height:25px;
background:#555;
left:50%;
top:100%;
transform:translateX(-50%);
}

/* balloon animation */
@keyframes floatUp{
0%{transform:translateY(0) scale(1);opacity:1;}
100%{transform:translateY(-120vh) scale(1.2);opacity:0;}
}

/* popup animation */
@keyframes pop{
0%{transform:scale(0.5);opacity:0;}
100%{transform:scale(1);opacity:1;}
}

.back-btn{
  position: fixed;
  top: 16px;
  left: 14px;
  width: 44px;
  height: 44px;

  display: flex;
  align-items: center;
  justify-content: center;

  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;

  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  color: #fff;
  font-size: 20px;

  box-shadow: 
    0 8px 25px rgba(0,0,0,0.35),
    inset 0 1px 0 rgba(255,255,255,0.15);

  cursor: pointer;
  z-index: 9999;

  transition: all 0.25s ease;
}

/* Hover effect */
.back-btn:hover{
  transform: scale(1.08);
  background: rgba(0,0,0,0.55);
  box-shadow: 
    0 12px 35px rgba(0,0,0,0.45),
    0 0 15px rgba(255,255,255,0.1);
}

/* Click effect */
.back-btn:active{
  transform: scale(0.95);
}