/* Font & smooth */
body, input, button, .price-box span, .price-box strong, footer, .profile strong {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight:600;
}

/* Background gradient terang */
body{
    margin:0;
    font-family:'Segoe UI',sans-serif;
    background: linear-gradient(135deg,#fdf6f0,#fffaf5);
    color:#222;
    min-height:100vh;
    transition: background 0.5s;
}

/* Card mewah dengan hover effect */
.card{
    border-radius:20px;
    background:#ffffff;
    padding:30px;
    margin-top:30px;
    box-shadow:0 8px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover{
    transform: translateY(-5px);
    box-shadow:0 15px 40px rgba(0,0,0,0.2);
}

/* Input & Button */
input, button{
    border-radius:12px!important;
    font-size:1rem;
    outline:none;
    transition: all 0.3s;
}
input:focus{
    box-shadow:0 0 10px rgba(243,156,18,0.5);
    border-color:#f39c12;
}

/* Input icon */
.input-icon{
    position: relative;
}
.input-icon input{
    padding-left:2.5rem;
    background:#f7f7f7;
    color:#222;
    border:1px solid #ddd;
}
.input-icon i{
    position:absolute;
    left:12px;
    top:50%;
    transform:translateY(-50%);
    color:#f39c12;
}
.input-icon input:focus + i{
    transform:translateY(-50%) scale(1.2);
    color:#e67e22;
}

/* Tombol premium + glow */
.btn-premium{
    background: linear-gradient(90deg,#f39c12,#f1c40f);
    color:#fff;
    font-weight:bold;
    transition:0.3s;
    box-shadow:0 5px 15px rgba(243,156,18,0.5);
    position:relative;
    overflow:hidden;
}
.btn-premium:hover{
    transform:scale(1.05);
    box-shadow:0 5px 25px rgba(243,156,18,0.8);
}
.btn-premium::after{
    content:'';
    position:absolute;
    top:-50%;
    left:-50%;
    width:200%;
    height:200%;
    background:rgba(255,255,255,0.1);
    transform:rotate(45deg) translate(-100%, -100%);
    transition:0.5s;
}
.btn-premium:hover::after{
    transform:rotate(45deg) translate(0,0);
}

/* Profile */
.profile{
    display:none;
    align-items:center;
    gap:15px;
    background:#f5f5f5;
    padding:10px;
    border-radius:12px;
    box-shadow:0 5px 15px rgba(0,0,0,0.1);
}
.profile img{
    width:80px;
    height:80px;
    border-radius:50%;
    border:3px solid #f39c12;
    opacity:0;
    transition:0.5s;
}
.profile img.show{
    opacity:1;
}

/* Loading */
.loading{
    display:none;
    text-align:center;
    margin-bottom:10px;
}

/* Price box dengan animasi glow */
.price-box{
    background:#f7f7f7;
    border-radius:12px;
    padding:12px;
    box-shadow:0 5px 15px rgba(243,156,18,0.2);
    transition: box-shadow 0.3s;
}
.price-box.glow{
    box-shadow:0 5px 25px rgba(243,156,18,0.7);
}

/* Header */
h3.fw-bold {
    font-weight:900;
    color:#222;
}

/* Footer */
footer{
    margin-top:30px;
    font-size:0.85rem;
    color:#555;
}
/* Tombol cek sebaris dengan input */
.d-flex.align-items-stretch .btn-premium{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:auto;
    padding:0 12px;
}