:root {
    --bg: #0a0f1a;
    --card: #111827;
    --accent: #7c3aed;
    --accent2: #22d3ee;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
}

* {
    box-sizing: border-box
}

html, body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg,#0b1220,#111827);
    color: var(--text);
    font-family: Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif
}

a {
    color: inherit;
    text-decoration: none
}

.container {
    max-width: 460px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100dvh;
    display: flex;
    flex-direction: column
}

.card {
    background: radial-gradient(1200px 400px at -10% -10%, rgba(124,58,237,.15), transparent 40%), linear-gradient(180deg, rgba(34,211,238,.12), transparent 35%), var(--card);
    border: 1px solid rgba(255,255,255,.06);
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,.35);
    padding: 18px
}

.header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px
}

.logo {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg,var(--accent),var(--accent2));
    display: grid;
    place-items: center;
    box-shadow: 0 6px 24px rgba(34,211,238,.25)
}

    .logo svg {
        filter: drop-shadow(0 8px 14px rgba(124,58,237,.4))
    }

.h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: .2px
}

.sub {
    font-size: .9rem;
    color: var(--muted)
}

.form {
    display: grid;
    gap: 12px;
    margin-top: 6px
}

.input {
    appearance: none;
    width: 100%;
    padding: 14px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.08);
    background: #0b1220;
    color: var(--text);
    font-size: 15px;
    outline: none;
    transition: box-shadow .2s,border .2s
}

    .input:focus {
        border-color: rgba(34,211,238,.35);
        box-shadow: 0 0 0 4px rgba(34,211,238,.12)
    }

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px
}

.badge {
    font-size: .8rem;
    color: var(--muted)
}

.btn {
    padding: 14px 16px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg,var(--accent),#5b21b6);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(124,58,237,.35);
    transition: transform .06s ease, box-shadow .2s
}

    .btn:hover {
        box-shadow: 0 14px 28px rgba(124,58,237,.45)
    }

    .btn:active {
        transform: translateY(1px)
    }

    .btn.secondary {
        background: #0b1220;
        border: 1px solid rgba(255,255,255,.1);
        box-shadow: none
    }

.choices {
    display: flex;
    gap: 8px;
    flex-wrap: wrap
}

.choice {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.1);
    background: #0b1220;
    cursor: pointer;
    user-select: none
}

    .choice input {
        display: none
    }

    .choice.active {
        border-color: rgba(34,211,238,.55);
        background: linear-gradient(135deg, rgba(34,211,238,.12), rgba(124,58,237,.12));
    }

.footer {
    margin-top: auto;
    color: var(--muted);
    font-size: .8rem;
    text-align: center;
    opacity: .8
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 6px 0 12px 0
}

.icon {
    width: 18px;
    height: 18px;
    opacity: .9
}

.preview {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 6px
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px dashed rgba(255,255,255,.15);
    border-radius: 999px;
    color: var(--muted);
    font-size: .85rem
}

.note {
    font-size: .85rem;
    color: var(--muted)
}

.success {
    color: var(--success)
}

.error {
    color: var(--danger)
}

hr {
    border: none;
    height: 1px;
    background: rgba(255,255,255,.06);
    margin: 10px 0
}

small {
    color: var(--muted)
}

@media (min-width:480px) {
    .container {
        padding: 28px
    }
}
/* extras */
.steps {
    display: flex;
    gap: 6px;
    margin: 8px 0 14px
}

.step {
    height: 6px;
    flex: 1;
    border-radius: 999px;
    background: rgba(255,255,255,.12)
}

    .step.active {
        background: linear-gradient(90deg, var(--accent), var(--accent2))
    }

.kpi {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin: 8px 0
}

    .kpi .box {
        flex: 1;
        background: #0b1220;
        border: 1px solid rgba(255,255,255,.08);
        border-radius: 14px;
        padding: 12px;
        text-align: center
    }

.amount-input {
    display: flex;
    gap: 8px;
    align-items: center
}

    .amount-input input {
        flex: 1
    }

.slider {
    width: 100%
}

.gateway {
    display: grid;
    gap: 8px
}

    .gateway .opt {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px;
        border-radius: 12px;
        border: 1px solid rgba(255,255,255,.12);
        background: #0b1220;
        cursor: pointer
    }

        .gateway .opt input {
            margin-left: auto
        }

.badge.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px
}

    .badge.brand .blob {
        width: 8px;
        height: 8px;
        border-radius: 999px;
        background: var(--accent2);
        box-shadow: 0 0 0 6px rgba(34,211,238,.18)
    }

.receipt {
    background: #0b1220;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 14px;
    padding: 12px;
    display: grid;
    gap: 8px
}

    .receipt .row {
        display: flex;
        justify-content: space-between;
        color: var(--muted)
    }

.big {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: .5px
}

.success-hero {
    display: grid;
    place-items: center;
    gap: 10px;
    padding: 16px 0
}

.check {
    width: 72px;
    height: 72px;
    border-radius: 999px;
    background: linear-gradient(135deg,var(--success),#34d399);
    display: grid;
    place-items: center;
    color: #062e24;
    box-shadow: 0 10px 30px rgba(16,185,129,.45)
}