/* ==========================================================================
           [SEC:CSS:ONBOARDING]
           ONBOARDING WELCOME MODAL
           ========================================================================== */
        .onboarding-backdrop {
            background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.08) 0%, rgba(0, 0, 0, 0.85) 70%);
            backdrop-filter: blur(8px);
        }

        .onboarding-container {
            max-width: 520px;
            width: calc(100% - 2rem);
            padding: 2.5rem 2rem 2rem;
            background: linear-gradient(145deg, rgba(30, 27, 55, 0.95), rgba(17, 24, 39, 0.97));
            border: 1px solid rgba(99, 102, 241, 0.25);
            border-radius: 1.25rem;
            box-shadow:
                0 0 60px rgba(99, 102, 241, 0.12),
                0 25px 50px rgba(0, 0, 0, 0.5),
                inset 0 1px 0 rgba(255, 255, 255, 0.06);
            animation: onboardingSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
        }

        .onboarding-logo {
            width: 4rem;
            height: 4rem;
            margin: 0 auto 1rem;
            border-radius: 1rem;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
        }

        .onboarding-card {
            position: relative;
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.25rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0.875rem;
            cursor: pointer;
            transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
            opacity: 0;
            transform: translateY(12px);
            animation: onboardingCardIn 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }

        .onboarding-card:nth-child(1) {
            animation-delay: 0.15s;
        }

        .onboarding-card:nth-child(2) {
            animation-delay: 0.25s;
        }

        .onboarding-card:nth-child(3) {
            animation-delay: 0.35s;
        }

        .onboarding-card:hover {
            background: rgba(99, 102, 241, 0.08);
            border-color: rgba(99, 102, 241, 0.35);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
        }

        .onboarding-card:active {
            transform: translateY(0);
        }

        .onboarding-card-icon {
            flex-shrink: 0;
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
        }

        .onboarding-card-icon.icon-create {
            background: rgba(99, 102, 241, 0.15);
            color: #a5b4fc;
        }

        .onboarding-card-icon.icon-generate {
            background: rgba(168, 85, 247, 0.15);
            color: #c4b5fd;
        }

        .onboarding-card-icon.icon-import {
            background: rgba(34, 197, 94, 0.15);
            color: #86efac;
        }

        .onboarding-card-text h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #e5e7eb;
            margin: 0 0 0.15rem;
        }

        .onboarding-card-text p {
            font-size: 0.78rem;
            color: #9ca3af;
            margin: 0;
            line-height: 1.35;
        }

        .onboarding-card-arrow {
            margin-left: auto;
            color: rgba(156, 163, 175, 0.4);
            transition: color 0.2s, transform 0.2s;
            flex-shrink: 0;
        }

        .onboarding-card:hover .onboarding-card-arrow {
            color: rgba(165, 180, 252, 0.8);
            transform: translateX(3px);
        }

        .onboarding-divider {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin: 1rem 0;
        }

        .onboarding-divider::before,
        .onboarding-divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: linear-gradient(to right, transparent, rgba(99, 102, 241, 0.2), transparent);
        }

        .onboarding-divider span {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.15em;
            color: rgba(156, 163, 175, 0.5);
            font-weight: 600;
        }

        .onboarding-demo-link {
            display: block;
            text-align: center;
            padding: 0.75rem;
            font-size: 0.82rem;
            color: #818cf8;
            font-weight: 500;
            cursor: pointer;
            border-radius: 0.5rem;
            transition: background 0.2s, color 0.2s;
            opacity: 0;
            animation: onboardingCardIn 0.45s 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }

        .onboarding-demo-link:hover {
            background: rgba(99, 102, 241, 0.08);
            color: #a5b4fc;
        }

        @keyframes onboardingSlideIn {
            from {
                opacity: 0;
                transform: scale(0.95) translateY(20px);
            }

            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        @keyframes onboardingCardIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .onboarding-step {
            display: none;
            animation: onboardingCardIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
        }

        .onboarding-step.active {
            display: block;
        }

        .model-option-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            padding: 1.25rem;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: left;
        }

        .model-option-card:hover {
            background: rgba(99, 102, 241, 0.1);
            border-color: rgba(99, 102, 241, 0.4);
            transform: translateY(-2px);
        }

        .model-option-card.selected {
            background: rgba(99, 102, 241, 0.15);
            border-color: #6366f1;
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
        }

        .model-option-card-icon {
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.75rem;
            background: rgba(255, 255, 255, 0.05);
        }

        .model-option-card.selected .model-option-card-icon {
            background: #6366f1;
            color: white;
        }