:root {
    --accent: 16 185 129;
    --ink: 15 23 42;
    --muted: 100 116 139;
}

html.dark {
    --accent: 34 211 238;
    --ink: 229 231 235;
    --muted: 156 163 175;
}

.card {
    border: 1px solid rgba(100, 116, 139, .35);
    box-shadow: 0 10px 24px rgba(2, 6, 23, .06);
    border-radius: 18px
}

html.dark .card {
    border-color: #334155
}

.bg-blobs {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none
}

.blob {
    position: absolute;
    filter: blur(40px);
    opacity: .25
}

.blob-1 {
    width: 560px;
    height: 560px;
    left: -120px;
    top: -80px;
    background: radial-gradient(circle at 30% 30%, #60a5fa, transparent 60%), radial-gradient(circle at 70% 60%, #34d399, transparent 60%)
}

.blob-2 {
    width: 420px;
    height: 420px;
    right: -120px;
    bottom: -80px;
    background: radial-gradient(circle at 40% 40%, #a78bfa, transparent 60%), radial-gradient(circle at 70% 70%, #22d3ee, transparent 60%)
}

.ring-grad {
    position: relative
}

.ring-grad:before {
    content: "";
    position: absolute;
    inset: -2px;
    z-index: -1;
    pointer-events: none;
    border-radius: 24px;
    padding: 2px;
    background: linear-gradient(135deg, #60a5fa, #22d3ee, #34d399, #a78bfa);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude
}

.tab {
    border: 1px solid rgba(100, 116, 139, .35);
    border-radius: 12px
}

.tab-btn {
    flex: 1;
    padding: .5rem .75rem;
    border-radius: 10px
}

.tab-btn.active {
    background: rgba(37, 99, 235, .08);
    color: #2563eb;
    font-weight: 700
}

.otp input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-weight: 800;
    font-size: 1.1rem;
    border-radius: 12px;
    border: 1px solid rgba(100, 116, 139, .35);
    background: transparent
}

.otp input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .25)
}

.hint {
    font-size: .8rem;
    color: rgb(var(--muted) / 1)
}

.error {
    font-size: .85rem;
    color: #ef4444;
    margin-top: .25rem
}