body{
            font-family:'Inter',sans-serif;
            background:linear-gradient(135deg,#0f172a,#111827,#1e293b);
            min-height:100vh;
            color:#fff;
        }

        .hero-section{
            padding:80px 0;
        }

        .hero-title{
            font-size:56px;
            font-weight:700;
            line-height:1.1;
            margin-bottom:20px;
        }

        .hero-text{
            color:#cbd5e1;
            font-size:18px;
            max-width:560px;
        }

        .exchange-card{
            background:rgba(255,255,255,0.08);
            border:1px solid rgba(255,255,255,0.08);
            backdrop-filter:blur(18px);
            border-radius:28px;
            padding:32px;
            box-shadow:0 20px 60px rgba(0,0,0,.35);
        }

        .exchange-label{
            font-size:14px;
            color:#94a3b8;
            margin-bottom:10px;
            font-weight:600;
        }

        .exchange-box{
            background:rgba(255,255,255,0.05);
            border:1px solid rgba(255,255,255,0.08);
            border-radius:20px;
            padding:20px;
        }

        .exchange-input{
            width:100%;
            background:transparent;
            border:none;
            outline:none;
            color:#fff;
            font-size:30px;
            font-weight:700;
        }

        .exchange-input::placeholder{
            color:rgba(255,255,255,.35);
        }

        .select-wrapper{
            position:relative;
            width:100%;
        }

        .select-icon{
            position:absolute;
            left:16px;
            top:50%;
            transform:translateY(-50%);
            width:24px;
            height:24px;
            border-radius:50%;
            object-fit:contain;
            z-index:3;
            background:#fff;
            padding:2px;
            pointer-events:none;
        }

        .custom-select{
            width:100%;
            height:60px;
            border-radius:16px;
            border:1px solid rgba(255,255,255,.1);
            background-color:rgba(255,255,255,.08);
            color:#fff;
            font-weight:600;
            padding-left:52px !important;
            padding-right:42px !important;
            appearance:none;
            -webkit-appearance:none;
            -moz-appearance:none;

            background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='white' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 5.646a.5.5 0 0 1 .708 0L8 11.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");

            background-repeat:no-repeat;
            background-position:right 16px center;
            background-size:16px;
        }

        .custom-select:focus{
            border-color:#3b82f6;
            box-shadow:none;
            background-color:rgba(255,255,255,.1);
            color:#fff;
        }

        .custom-select option{
            color:#111827;
        }

        .swap-btn{
            width:40px;
            height:40px;
            border:none;
            border-radius:50%;
            margin:-10px auto;
            position:relative;
            z-index:5;

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

            background:linear-gradient(135deg,#2563eb,#3b82f6);

            color:#fff;
            font-size:26px;

            box-shadow:0 10px 25px rgba(37,99,235,.4);
        }

        .rate-box{
            margin-top:24px;
            padding:18px;
            border-radius:18px;
            background:rgba(59,130,246,.1);
            border:1px solid rgba(59,130,246,.25);
        }

        .exchange-btn{
            width:100%;
            height:60px;
            margin-top:24px;
            border:none;
            border-radius:18px;
            font-weight:700;
            font-size:18px;

            background:linear-gradient(135deg,#2563eb,#3b82f6);
        }

        .feat-card{
            height:100%;
            border-radius:24px;
            padding:28px;
            background:rgba(255,255,255,.05);
            border:1px solid rgba(255,255,255,.06);
        }

        .feat-icon{
            width:58px;
            height:58px;
            border-radius:16px;
            display:flex;
            align-items:center;
            justify-content:center;
            background:rgba(59,130,246,.15);
            font-size:24px;
            margin-bottom:18px;
        }

        @media(max-width:991px){

            .hero-title{
                font-size:42px;
            }

        }

        @media(max-width:576px){

            .hero-title{
                font-size:34px;
            }

            .exchange-card{
                padding:22px;
            }

            .exchange-input{
                font-size:26px;
            }

        }

.custom-dropdown {
    position: relative;
    width: 100%;
}

.dropdown-selected {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 16px;
    border-radius: 16px;

    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);

    cursor: pointer;
}

.dropdown-selected img {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    margin-right: 10px;
}

.dropdown-selected span {
    flex: 1;
    font-weight: 600;
}

.arrow {
    opacity: 0.7;
}

.dropdown-list {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;

    background: #0f172a;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;

    display: none;

    max-height: 260px;
    overflow-y: auto;

    z-index: 999;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;

    padding: 12px 14px;
    cursor: pointer;

    transition: 0.2s;
}

.dropdown-item img {
    width: 26px;
    height: 26px;
    border-radius: 50%;
}

.dropdown-item:hover {
    background: rgba(59,130,246,0.15);
}

.dropdown-item.active {
    background: rgba(59,130,246,0.25);
}

.custom-static-select {
    height: 60px;
    display: flex;
    align-items: center;

    padding-left: 52px;
    padding-right: 16px;

    border-radius: 16px;

    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);

    font-weight: 600;
}

.navbar {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.navbar-brand {
    font-size: 25px;
    letter-spacing: 0.08em;
}

.nav-link {
    color: rgba(255,255,255,0.75) !important;
    font-weight: 500;
    transition: 0.2s;
}

.nav-link:hover {
    color: #fff !important;
}

.navbar .btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border: none;
}

.navbar-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 6px;
    filter: drop-shadow(0 0 6px rgba(59,130,246,0.6));
}

.exchange-unified-card{
    padding: 0;
    overflow: hidden;
}

.exchange-left-side{
    padding: 32px;
    height: 100%;
    background: rgba(255,255,255,0.02);
}

.exchange-right-side{
    padding: 32px;
    height: 100%;
    background: rgba(255,255,255,0.02);
}

/* MOBILE */
@media (max-width: 991px){

    .exchange-left-side{
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }

}

.exchange-field{
    width: 100%;
    height: 58px;

    background: rgba(255,255,255,0.04) !important;
    border: 1px solid rgba(255,255,255,0.08) !important;

    border-radius: 18px !important;

    padding: 0 18px !important;

    color: #fff !important;

    font-size: 15px;
    font-weight: 500;

    transition: all .2s ease;
    box-shadow: none !important;
}

.exchange-field::placeholder{
    color: rgba(255,255,255,0.35);
}

.exchange-field:focus{
    border-color: #3b82f6 !important;
    background: rgba(255,255,255,0.06) !important;

    box-shadow:
    0 0 0 4px rgba(59,130,246,0.10) !important;

    outline: none;
}

/* labels */
.exchange-right-side .form-label{
    color: rgba(255,255,255,0.55) !important;
    font-weight: 500;
    letter-spacing: .2px;
}

/* checkbox */
.custom-check{
    padding-left: 30px;
}

.custom-check .form-check-input{
    width: 18px;
    height: 18px;

    margin-left: -30px;
    margin-top: 2px;

    background-color: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.15);

    box-shadow: none !important;
}

.custom-check .form-check-input:checked{
    background-color: #3b82f6;
    border-color: #3b82f6;
}


#toastContainer{
position: fixed;
top: 20px;
right: 20px;
z-index: 9999;
display: flex;
flex-direction: column;
gap: 10px;
}

.toast{
    min-width: 260px;
    padding: 14px 16px;
    border-radius: 14px;
    color: #fff;
    font-size: 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    animation: slideIn .25s ease;
}

.toast.error{
    border-color: rgba(239,68,68,0.4);
}

.toast.success{
    border-color: rgba(34,197,94,0.4);
}

/* ошибки инпутов */
.input-error{
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239,68,68,0.15) !important;
}

@keyframes slideIn{
    from { transform: translateX(30px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}


#botOverlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

#botBox {
    background: #232a38;
    color: #fff;
    padding: 24px;
    border-radius: 14px;
    width: 320px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,.3);
    font-family: sans-serif;
}

#botBox h3 {
    margin: 0 0 10px;
}

#botBox p {
    font-size: 13px;
    opacity: .7;
    margin-bottom: 20px;
}

#sliderWrap {
    padding: 10px 0;
}

#humanSlider{
width:100%;
appearance:none;
height:12px;
border-radius:20px;
background:#1a1f2b;
outline:none;
}

#humanSlider::-webkit-slider-thumb{
appearance:none;
width:40px;
height:40px;
border-radius:50%;
background:#1a73e8;
cursor:pointer;
}

#humanSlider::-moz-range-thumb{
width:40px;
height:40px;
border:none;
border-radius:50%;
background:#1a73e8;
cursor:pointer;
}

.logo-box {
    position: relative;
    width: 300px;
}

/* КРУГ И ВРАЩЕНИЕ */
.circle-spin {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    overflow: hidden;

    animation: spin 20s linear infinite;
}

/* картинка внутри круга */
.circle-spin img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* текст поверх */
.logo-text {
    position: absolute;
    inset: 0;

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

    font-size: 4em;
    font-weight: 900;
    color: white;

    text-shadow: 7px 5px 6px rgb(0, 0, 0);
    pointer-events: none;
}

/* анимация вращения */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.marquee {
    overflow: hidden;
}

.marquee-track {
    display: flex;
    gap: 20px;
    width: max-content;
    will-change: transform;
}

.feature-card {
    flex: 0 0 auto;
    width: 280px;
    background: #111;
    color: #fff;
    padding: 20px;
    border-radius: 16px;
}