:root {
            --card-radius: 18px;
            --icon-size: 48px;
            /* icon font-size */
            --badge-size: 64px;
            /* circle size */
            --soft: 0 6px 20px rgba(12, 27, 77, 0.08);
            --soft-hover: 0 10px 28px rgba(12, 27, 77, 0.12);
            --ring: radial-gradient(74% 74% at 28% 28%, #E9F8FF 0%, #F3FBFF 40%, #EAF7FF 60%, #E6F5FF 100%);
            --accent: #3A86FF;
            /* subtle blue tint for icons */
            --text-muted: #6b7280;
            /* gray-500-ish */
        }

        .feature-card {
            border: none;
            border-radius: var(--card-radius);
            box-shadow: var(--soft);
            transition: transform .18s ease, box-shadow .18s ease;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--soft-hover);
        }

        .icon-badge {
            width: var(--badge-size);
            height: var(--badge-size);
            border-radius: 50%;
            background: var(--ring);
            display: grid;
            place-items: center;
            margin-bottom: .75rem;
        }

        .icon-badge i {
            font-size: var(--icon-size);
            color: var(--accent);
        }

        .feature-card .card-title {
            font-weight: 700;
            letter-spacing: .2px;
        }

        .feature-card .card-text {
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* spacing helper for consistent gutters on all viewports */
        .features-grid>[class*="col"] {
            margin-bottom: 1.25rem;
        }

        @media (min-width: 992px) {
            .features-grid>[class*="col"] {
                margin-bottom: 1.5rem;
            }
        }

        .cro-form-wrapper {
            max-width: 720px;
            margin: 4rem auto;
            padding: 2rem 1.25rem;
            border: 1px solid var(--card-border);
            border-radius: 14px;
            text-align: center;
            box-shadow: 0 6px 24px rgba(17, 24, 39, .03);
            background: #fff;
        }

        @media (min-width:768px) {
            .cro-form-wrapper {
                padding: 3rem 2rem;
                margin-top: 6rem;
            }
        }

        .cro-title {
            font-weight: 800;
            color: #0f172a;
            letter-spacing: .2px;
        }

        .cro-sub {
            color: #6b7280;
            max-width: 48ch;
            margin: .5rem auto 1.25rem;
        }

        /* Responsive input area: stacks on xs; inline from sm up */
        .cro-inline {
            display: flex;
            flex-direction: column;
            gap: .6rem;
            /* space between input & button on mobile */
            align-items: stretch;
            /* full width on mobile */
        }

        @media (min-width:576px) {
            .cro-inline {
                flex-direction: row;
                align-items: stretch;
                gap: .5rem;
            }
        }

        .cro-url {
            min-width: 0;
            /* prevent shrinking overflow */
            flex: 1 1 auto;
            height: 52px;
            border-radius: 10px;
            border: 1px solid #e5e7eb;
            padding: .65rem .9rem;
            font-size: 1rem;
        }

        @media (min-width:576px) {
            .cro-url {
                border-radius: 10px;
                /* keep rounded when inline */
            }
        }

        .cro-btn {
            height: 52px;
            border-radius: 10px;
            background: var(--purple);
            border: none;
            color: #fff;
            font-weight: 700;
            padding: 0 1.25rem;
            white-space: nowrap;
            /* keep label intact */
        }

        .cro-btn:hover {
            background: var(--purple-strong);
        }

        .cro-btn i {
            margin-right: .45rem;
        }

        .cro-note {
            color: var(--muted);
            font-size: .95rem;
            margin-top: .85rem;
        }

        .cro-note i {
            color: #c7cad1;
            margin-right: .4rem;
        }


        .wait-wrap {
            max-width: 720px;
            margin: 2rem auto;
            padding: 0 1rem;
            font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
        }

        .brand {
            color: #6b57ff;
            font-weight: 800;
            letter-spacing: .2px;
            margin-bottom: .75rem;
        }

        h1 {
            margin: 0 0 .25rem;
        }

        .timer {
            font: 700 1.5rem monospace;
            margin: .25rem 0 .25rem;
        }

        .status {
            margin: 0 0 1rem;
            font-weight: 500;
        }

        .panels {
            position: relative;
        }

        .panel {
            opacity: 0;
            transform: translateY(6px);
            transition: opacity .35s ease, transform .35s ease;
            position: absolute;
            inset: 0;
        }

        .panel.active {
            opacity: 1;
            transform: translateY(0);
            position: relative;
        }

        .panel h3 {
            margin: .25rem 0 .5rem;
        }

        .panel ul {
            margin: 0 0 0 1.1rem;
        }

        .muted {
            color: #6b7280;
        }

        .accordion-body,
        .accordion-header,
        .accordion-button,
        .accordion-collapse,
        .accordion-item {
            text-align: left !important;
        }


        .cro-panel {
            border-radius: 16px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .cro-panel:hover {
            transform: translateY(-4px);
            box-shadow: 0 6px 20px rgba(94, 68, 250, 0.2);
        }

        #modalEmail .btn-primary {
            background-color: #5E44FA !important;
            border-color: #5E44FA !important;
        }


        @media (max-width: 767.98px) {
            .cro-panel {
                max-width: 90%;
            }
        }

        .panel-timer {
            width: 100%;
            height: 5px;
            /* tweak height here */
            background-color: #e9e9ff;
            overflow: hidden;
            border-radius: 3px;
            margin-bottom: 10px;
        }

        .panel-progress {
            height: 100%;
            width: 100%;
            background-color: #5E44FA;
            /* brand color */
        }

        /* optional: smoother restart animation reset */
        .panel-progress.reset {
            transition: none;
            width: 100%;
        }