:root {
    --primary-color: #fd680e;
    --primary-dark: #d24f00;
    --background-color: #0f172a;
    --card-color: #111827;
    --muted-color: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    --glow: radial-gradient(circle at 10% 20%, rgba(253, 104, 14, 0.16), transparent 32%),
            radial-gradient(circle at 80% 10%, rgba(14, 165, 233, 0.18), transparent 40%),
            radial-gradient(circle at 50% 80%, rgba(124, 58, 237, 0.2), transparent 36%);
}

body {
    background: linear-gradient(145deg, #0b1325, #0f172a);
    color: #e5e7eb;
    font-family: 'Space Grotesk', 'Open Sans', sans-serif;
}

.auth-section {
    position: relative;
    padding: 48px 0 96px 0;
}

.auth-gradient {
    position: absolute;
    inset: 0;
    background: var(--glow);
    filter: blur(12px);
    opacity: 0.9;
    z-index: -1;
}

.auth-card {
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 32px 90px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(12px);
}

.auth-card h3 {
    font-weight: 700;
}

.accent-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(253, 104, 14, 0.12);
    color: var(--primary-color);
    display: grid;
    place-items: center;
    font-size: 22px;
}

.feature-chip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 12px;
    margin-top: 24px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.04);
    color: #e5e7eb;
    backdrop-filter: blur(8px);
}

.mini-card {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 16px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: #e5e7eb;
}

.mini-card p {
    margin-bottom: 0;
}

.plan-tag .badge {
    padding: 10px 12px;
    font-weight: 600;
    border-radius: 12px;
}

.pill-badge {
    background: rgba(255, 255, 255, 0.08);
    color: #e5e7eb;
    border: 1px solid var(--border-color);
}

.pill-badge-primary {
    background: rgba(253, 104, 14, 0.14);
    color: var(--primary-color);
    border-color: rgba(253, 104, 14, 0.55);
}

.modern-input .input-group-text {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-right: none;
    color: #cbd5e1;
    padding: 12px 14px;
}

.modern-input .form-control {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-left: none;
    color: #f8fafc;
    padding: 12px 14px;
}

.modern-input .form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(253, 104, 14, 0.25);
    border-color: rgba(253, 104, 14, 0.7);
}

.modern-input .form-control::placeholder {
    color: #94a3b8;
}

.form-label {
    color: #e5e7eb;
    font-weight: 600;
}

.form-text {
    color: var(--muted-color) !important;
}

.text-muted {
    color: var(--muted-color) !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    box-shadow: 0 16px 40px rgba(253, 104, 14, 0.35);
    font-weight: 700;
    padding: 12px 16px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), #b73f00);
}

.stylish-check .form-check-input {
    background-color: transparent;
    border: 1px solid var(--border-color);
}

.stylish-check .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.stylish-check .form-check-label a {
    color: #f59e0b;
}

.error-message {
    color: #f87171;
}

#username-val-msg::after {
    content: '';
    display: block;
}

@media (max-width: 768px) {
    .auth-section {
        padding-top: 24px;
    }

    .feature-chip-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }
}