html,body{margin:0;min-height:100%;width:100%}
body{min-height:100vh;min-height:100dvh;background:radial-gradient(circle at top,#101a28 0%,#05080d 48%,#03060b 100%);color:#f5f7fa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;display:flex;align-items:center;justify-content:center;padding:10px}
.signup-card{width:min(500px,calc(100vw - 20px));background:linear-gradient(145deg,rgba(10,20,31,.98),rgba(4,10,17,.98));border:1px solid #263746;border-radius:18px;padding:18px 22px 20px;box-shadow:0 25px 70px rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.025);position:relative}
.close-btn{position:absolute;top:15px;right:18px;width:34px;height:34px;border:0;background:transparent;color:#cbd4de;font-size:27px;font-weight:300;line-height:34px;cursor:pointer;border-radius:8px;transition:.2s ease}
.close-btn:hover{background:#17212c;color:#fff}
.signup-header{text-align:center}
.title{margin-top:8px;margin-bottom:3px;font-size:24px;font-weight:900;letter-spacing:.4px;background:linear-gradient(90deg,#20e58b,#20c7db,#725cff);-webkit-background-clip:text;background-clip:text;color:transparent}
.subtitle{color:#9eabba;font-size:12px;line-height:1.35;margin:0 auto 12px}
.divider{height:1px;background:#1d2a37;margin-bottom:14px}
.form-row{display:grid;grid-template-columns:95px minmax(0,1fr);align-items:center;gap:10px;margin-bottom:12px}
.form-row>label,.verification-row>label{color:#e5e9ef;font-size:12px;font-weight:700}
.required{color:#ff5555}
.optional{font-weight:400;color:#8a99aa}
.input-wrap{position:relative;min-width:0}
.input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#7f91a5;font-size:16px;pointer-events:none}
.input-wrap input{width:100%;height:43px;border-radius:8px;border:1px solid #293b4c;background:#0b151f;color:#f5f7fa;padding:0 14px 0 42px;outline:none;font-size:13px;transition:.2s ease}
.input-wrap input:focus{border-color:#725cff;box-shadow:0 0 0 2px rgba(114,92,255,.12)}
.input-wrap input::placeholder{color:#718094}
.captcha-controls{display:grid;grid-template-columns:minmax(0,1fr) 110px 44px;gap:7px;min-width:0}
.captcha-input-wrap{min-width:0}
.captcha-text{height:43px;border-radius:8px;border:1px solid #293b4c;background:#101c2a;color:#20e58b;display:flex;align-items:center;justify-content:center;font-family:monospace;font-size:18px;font-weight:900;letter-spacing:4px;user-select:none;min-width:0}
.captcha-refresh{width:44px;height:43px;border:1px solid #293b4c;border-radius:8px;background:#0b151f;color:#b9c5d1;font-size:21px;cursor:pointer;transition:.2s ease}
.captcha-refresh:hover{border-color:#20c7db;color:#20c7db;background:#122331}
.submit-btn{display:block;width:100%;height:46px;margin:16px 0 0;border:0;border-radius:8px;background:linear-gradient(90deg,#673cff,#a33cff);color:#fff;font-size:13px;font-weight:900;letter-spacing:.4px;cursor:pointer;transition:.2s ease;box-shadow:0 8px 25px rgba(120,60,255,.22)}
.submit-btn:hover{transform:translateY(-1px);box-shadow:0 12px 30px rgba(120,60,255,.32)}
.submit-btn:active{transform:translateY(0)}
.submit-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.verification-section{margin-top:18px;padding-top:18px;border-top:1px solid #1d2a37}
.verification-title{text-align:center;font-size:19px;font-weight:900;letter-spacing:.5px;color:#20d9c3;margin-bottom:8px}
.verification-text{text-align:center;color:#9eabba;font-size:12px;line-height:1.45;margin:0 auto 18px}
.verification-row{display:grid;grid-template-columns:95px minmax(0,1fr);align-items:center;gap:10px;margin-bottom:13px}
.verification-message{min-height:18px;margin-top:10px;text-align:center;color:#ff7777;font-size:11px}
.captcha-img{
    width:125px !important;
    height:50px !important;
    flex:0 0 125px !important;
    max-width:125px !important;
    object-fit:fill;
    display:block;
    border:1px solid #243649;
    border-radius:8px;
    background:#08111b;
}

@media(max-width:520px){body{padding:8px}.signup-card{width:calc(100vw - 16px);padding:17px 16px 19px}.form-row{grid-template-columns:88px minmax(0,1fr);gap:8px}
.captcha-img{
        width:135px !important;
        height:50px !important;
        flex:0 0 135px !important;
        max-width:135px !important;
    }
.captcha-controls{grid-template-columns:minmax(0,1fr) 100px 42px}.captcha-refresh{width:42px}.submit-btn{width:100%;margin:15px 0 0}.title{font-size:22px}.subtitle{font-size:11px}}

.custom-modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(3, 6, 11, 0.85);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.custom-modal-card {
    width: min(400px, calc(100vw - 30px));
    background: linear-gradient(145deg, rgba(10,20,31,.98), rgba(4,10,17,.98));
    border: 1px solid #263746;
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 25px 70px rgba(0,0,0,.75);
}
.custom-modal-title {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: .5px;
    background: linear-gradient(90deg, #20e58b, #20c7db);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 12px;
}
.custom-modal-message {
    color: #cbd4de;
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 20px;
}