* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ???????? ??????? ???????? (????) */
        .page-content {
            max-width: 1000px;
            margin: 2rem auto;
            padding: 2rem;
            background: white;
            border-radius: 28px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
            flex: 1;
        }

        h1 {
            font-size: 2rem;
            margin-bottom: 0.75rem;
            font-weight: 600;
            background: linear-gradient(135deg, #1e3c5c, #2b5a8c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }

        .demo-card {
            margin-top: 1.5rem;
            background: #f9fafb;
            padding: 1.2rem;
            border-radius: 20px;
            border-left: 4px solid #3b82f6;
        }

        .demo-card p {
            margin: 0.5rem 0;
        }

        .footer-settings {
            margin-top: 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #4a627a;
            border-top: 1px solid #e2e8f0;
            padding-top: 1.5rem;
        }

        .footer-settings button {
            background: none;
            border: none;
            color: #2c6e9e;
            cursor: pointer;
            font-size: 0.85rem;
            text-decoration: underline;
            padding: 0.25rem 0.5rem;
            transition: color 0.2s;
        }

        .footer-settings button:hover {
            color: #1e4a76;
        }

        /* ========== COOKIE ?????? (FIXED BOTTOM) ========== */
        .cookie-banner {
            position: fixed;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: #ffffff;
            border-radius: 24px;
            box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.02);
            padding: 1.25rem 1.5rem;
            z-index: 1000;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            backdrop-filter: blur(0px);
            transition: all 0.3s ease;
            border: 1px solid #e9edf2;
        }

        .cookie-banner p {
            margin: 0;
            font-size: 0.95rem;
            color: #1e2f3e;
            flex: 2;
            min-width: 180px;
        }

        .banner-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }

        .btn {
            border: none;
            padding: 0.5rem 1.2rem;
            border-radius: 60px;
            font-weight: 500;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: inherit;
        }

        .btn-primary {
            background: #1f6392;
            color: white;
            box-shadow: 0 1px 2px rgba(0,0,0,0.05);
        }

        .btn-primary:hover {
            background: #0e4a70;
            transform: scale(0.97);
        }

        .btn-secondary {
            background: #eef2f6;
            color: #2c3e50;
            border: 1px solid #cfdde6;
        }

        .btn-secondary:hover {
            background: #e2e8f0;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid #b9cad6;
            color: #2c5a7a;
        }

        .btn-outline:hover {
            background: #ecf3f8;
            border-color: #8faec9;
        }

        /* ========== MODAL (???-?? ????????) ========== */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(3px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            visibility: hidden;
            opacity: 0;
            transition: visibility 0.2s, opacity 0.2s ease;
        }

        .modal-overlay.active {
            visibility: visible;
            opacity: 1;
        }

        .modal-container {
            background: #ffffff;
            width: 90%;
            max-width: 500px;
            border-radius: 32px;
            box-shadow: 0 30px 40px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            transform: scale(0.96);
            transition: transform 0.2s ease;
        }

        .modal-overlay.active .modal-container {
            transform: scale(1);
        }

        .modal-header {
            padding: 1.3rem 1.8rem;
            background: #f8fafc;
            border-bottom: 1px solid #e9edf2;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-header h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #0b2b3f;
        }

        .close-modal {
            background: none;
            border: none;
            font-size: 1.8rem;
            line-height: 1;
            cursor: pointer;
            color: #7f8c8d;
            transition: color 0.2s;
        }

        .close-modal:hover {
            color: #2c3e50;
        }

        .modal-body {
            padding: 1.5rem 1.8rem;
        }

        .cookie-option {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.9rem 0;
            border-bottom: 1px solid #ecf1f5;
        }

        .cookie-option:last-child {
            border-bottom: none;
        }

        .option-text {
            flex: 1;
        }

        .option-text strong {
            display: block;
            font-size: 1rem;
            margin-bottom: 0.2rem;
        }

        .option-text small {
            font-size: 0.75rem;
            color: #5f7d9c;
        }

        /* ????????? ??????? */
        .checkbox {
            display: flex;
            align-items: center;
        }

        .checkbox input {
            width: 1.2rem;
            height: 1.2rem;
            cursor: pointer;
            accent-color: #1f6392;
        }

        .checkbox input:disabled {
            cursor: not-allowed;
            opacity: 0.6;
        }

        .modal-footer {
            padding: 1rem 1.8rem 1.6rem;
            background: #fefefe;
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
            border-top: 1px solid #eef2f8;
        }

        .btn-save {
            background: #1f6392;
            color: white;
            padding: 0.6rem 1.2rem;
            border-radius: 40px;
        }

        .btn-cancel {
            background: #eef2f6;
            color: #2c3e50;
        }

        /* ??????? ??????? ????? ?????????? */
        .cookie-banner.hidden {
            display: none;
        }

        @media (max-width: 640px) {
            .cookie-banner {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                bottom: 10px;
                left: 10px;
                right: 10px;
                padding: 1rem;
            }
            .banner-buttons {
                justify-content: center;
            }
            .modal-body {
                padding: 1rem;
            }
            .page-content {
                margin: 1rem;
                padding: 1.2rem;
            }
        }

        /* ??????? ???????? */
        .cookie-banner {
            animation: slideUp 0.3s ease-out;
        }
        @keyframes slideUp {
            from {
                transform: translateY(30px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }