:root {
            --white: #ffffff;
            --off-white: #fafbfc;
            --light-gray: #f1f4f8;
            --medium-gray: #e2e8f0;
            --text-primary: #1a202c;
            --text-secondary: #4a5568;
            --text-muted: #718096;
            --accent: #0066ff;
            --accent-hover: #0052cc;
            --accent-light: #e6f0ff;
            --success: #10b981;
            --success-light: #d1fae5;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.08);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--white);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* Background Pattern */
        .bg-pattern {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
            background: 
                radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.03) 0%, transparent 50%),
                linear-gradient(180deg, var(--white) 0%, var(--off-white) 100%);
        }

        /* Header */
        header {
            background: var(--white);
            border-bottom: 1px solid var(--light-gray);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(20px);
            background: rgba(255, 255, 255, 0.95);
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent) 0%, #00c6ff 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
        }

        .logo-icon svg {
            width: 24px;
            height: 24px;
            color: white;
        }

        .logo-text {
            font-family: 'Fraunces', serif;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .logo-text span {
            color: var(--accent);
        }

        nav {
            display: flex;
            gap: 2rem;
            align-items: center;
        }

        nav a {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }

        nav a:hover {
            color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: white !important;
            padding: 0.6rem 1.25rem;
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }

        /* Hero Section */
        .hero {
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem 3rem;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent-light);
            color: var(--accent);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            animation: fadeInUp 0.6s ease;
        }

        .hero-badge svg {
            width: 16px;
            height: 16px;
        }

        .hero h1 {
            font-family: 'Fraunces', serif;
            font-size: clamp(2.25rem, 5vw, 3.5rem);
            font-weight: 600;
            line-height: 1.15;
            margin-bottom: 1.25rem;
            color: var(--text-primary);
            animation: fadeInUp 0.6s ease 0.1s both;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--accent) 0%, #00c6ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2rem;
            animation: fadeInUp 0.6s ease 0.2s both;
        }

        /* Ad Banner Top */
        .ad-banner {
            max-width: 728px;
            margin: 0 auto 2rem;
            background: var(--light-gray);
            border: 2px dashed var(--medium-gray);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            min-height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Main Content Grid */
        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem 4rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            align-items: start;
        }

        /* Simulator Card */
        .simulator-card {
            background: var(--white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            animation: fadeInUp 0.6s ease 0.3s both;
            border: 1px solid var(--light-gray);
        }

        .simulator-header {
            background: linear-gradient(135deg, var(--accent) 0%, #0052cc 100%);
            padding: 1.75rem 2rem;
            color: white;
        }

        .simulator-header h2 {
            font-family: 'Fraunces', serif;
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.35rem;
        }

        .simulator-header p {
            opacity: 0.9;
            font-size: 0.95rem;
        }

        .simulator-body {
            padding: 2rem;
        }

        .form-group {
            margin-bottom: 1.75rem;
        }

        .form-group label {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .form-group label svg {
            width: 18px;
            height: 18px;
            color: var(--accent);
        }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper input {
            width: 100%;
            padding: 1rem 1.25rem;
            padding-right: 3.5rem;
            font-size: 1.1rem;
            font-family: inherit;
            font-weight: 500;
            border: 2px solid var(--medium-gray);
            border-radius: var(--radius-md);
            background: var(--white);
            color: var(--text-primary);
            transition: all 0.2s ease;
        }

        .input-wrapper input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px var(--accent-light);
        }

        .input-wrapper input:hover:not(:focus) {
            border-color: #cbd5e0;
        }

        .input-suffix {
            position: absolute;
            right: 1.25rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-weight: 600;
            font-size: 0.95rem;
            pointer-events: none;
        }

        /* Slider Styles */
        .slider-container {
            margin-top: 0.75rem;
        }

        .slider-wrapper {
            position: relative;
            height: 6px;
            background: var(--light-gray);
            border-radius: 3px;
        }

        .slider-fill {
            position: absolute;
            height: 100%;
            background: linear-gradient(90deg, var(--accent) 0%, #00c6ff 100%);
            border-radius: 3px;
            transition: width 0.1s ease;
        }

        input[type="range"] {
            -webkit-appearance: none;
            appearance: none;
            width: 100%;
            height: 6px;
            background: transparent;
            position: absolute;
            top: 0;
            left: 0;
            margin: 0;
            cursor: pointer;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 22px;
            height: 22px;
            background: var(--white);
            border: 3px solid var(--accent);
            border-radius: 50%;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: all 0.2s ease;
        }

        input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.15);
            box-shadow: var(--shadow-lg), 0 0 0 6px var(--accent-light);
        }

        input[type="range"]::-moz-range-thumb {
            width: 22px;
            height: 22px;
            background: var(--white);
            border: 3px solid var(--accent);
            border-radius: 50%;
            cursor: pointer;
            box-shadow: var(--shadow-md);
        }

        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-primary);
        }

        /* Calculate Button */
        .btn-calculate {
            width: 100%;
            padding: 1.1rem 2rem;
            font-size: 1.1rem;
            font-family: inherit;
            font-weight: 600;
            color: white;
            background: linear-gradient(135deg, var(--accent) 0%, #0052cc 100%);
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            margin-top: 2rem;
            box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
        }

        .btn-calculate:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 102, 255, 0.4);
        }

        .btn-calculate:active {
            transform: translateY(0);
        }

        .btn-calculate svg {
            width: 20px;
            height: 20px;
        }

        /* Results Section */
        .results-section {
            display: none;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 2px solid var(--light-gray);
            animation: fadeInUp 0.4s ease;
        }

        .results-section.visible {
            display: block;
        }

        .result-main {
            background: linear-gradient(135deg, var(--success-light) 0%, #a7f3d0 100%);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            margin-bottom: 1.5rem;
        }

        .result-main-label {
            font-size: 0.9rem;
            color: #047857;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.5rem;
        }

        .result-main-value {
            font-family: 'Fraunces', serif;
            font-size: 3rem;
            font-weight: 700;
            color: #047857;
            line-height: 1;
        }

        .result-main-value span {
            font-size: 1.5rem;
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }

        .result-item {
            background: var(--light-gray);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            text-align: center;
        }

        .result-item-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.35rem;
        }

        .result-item-value {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .ad-sidebar {
            background: var(--light-gray);
            border: 2px dashed var(--medium-gray);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.8rem;
            min-height: 250px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 0.5rem;
        }

        .info-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--light-gray);
        }

        .info-card h3 {
            font-family: 'Fraunces', serif;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .info-card h3 svg {
            width: 20px;
            height: 20px;
            color: var(--accent);
        }

        .info-list {
            list-style: none;
        }

        .info-list li {
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--light-gray);
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li svg {
            width: 16px;
            height: 16px;
            color: var(--success);
            flex-shrink: 0;
        }

        /* Features Section */
        .features-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem;
        }

        .features-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .features-header h2 {
            font-family: 'Fraunces', serif;
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }

        .features-header p {
            color: var(--text-secondary);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--light-gray);
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-xl);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            background: var(--accent-light);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
        }

        .feature-icon svg {
            width: 28px;
            height: 28px;
            color: var(--accent);
        }

        .feature-card h3 {
            font-family: 'Fraunces', serif;
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        /* Ad Banner Bottom */
        .ad-banner-bottom {
            max-width: 970px;
            margin: 0 auto 3rem;
            background: var(--light-gray);
            border: 2px dashed var(--medium-gray);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            min-height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Guide Section */
        .guide-section {
            background: var(--off-white);
            padding: 4rem 0;
        }

        .guide-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .guide-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .guide-header h2 {
            font-family: 'Fraunces', serif;
            font-size: clamp(1.75rem, 4vw, 2rem);
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .guide-highlight {
            background: linear-gradient(135deg, var(--accent-light) 0%, #cce5ff 100%);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            margin-bottom: 2rem;
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
        }

        .highlight-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .highlight-icon svg {
            width: 20px;
            height: 20px;
            color: white;
        }

        .highlight-content {
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .guide-intro {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .guide-toc {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.5rem 2rem;
            margin-bottom: 3rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--light-gray);
        }

        .guide-toc h3 {
            font-family: 'Fraunces', serif;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .guide-toc ol {
            margin: 0;
            padding-left: 1.25rem;
        }

        .guide-toc li {
            margin-bottom: 0.6rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .guide-toc a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .guide-toc a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .guide-content {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--light-gray);
        }

        .guide-article-section {
            margin-bottom: 3rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid var(--light-gray);
        }

        .guide-article-section:last-of-type {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .guide-article-section h3 {
            font-family: 'Fraunces', serif;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
            padding-top: 0.5rem;
        }

        .guide-article-section h4 {
            font-family: 'Fraunces', serif;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 2rem 0 1rem;
        }

        .guide-article-section p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .guide-article-section a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .guide-article-section a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .guide-list {
            margin: 1.25rem 0;
            padding-left: 0;
            list-style: none;
        }

        .guide-list li {
            position: relative;
            padding-left: 1.75rem;
            margin-bottom: 0.75rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .guide-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.6em;
            width: 8px;
            height: 8px;
            background: linear-gradient(135deg, var(--accent) 0%, #00c6ff 100%);
            border-radius: 50%;
        }

        .guide-list.checklist li::before {
            content: '✓';
            background: none;
            color: var(--success);
            font-weight: 700;
            font-size: 0.9rem;
            top: 0;
            width: auto;
            height: auto;
        }

        .guide-table-wrapper {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: var(--radius-md);
            border: 1px solid var(--light-gray);
        }

        .guide-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }

        .guide-table caption {
            padding: 1rem;
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--light-gray);
            border-bottom: 1px solid var(--medium-gray);
        }

        .guide-table th {
            background: var(--accent);
            color: white;
            padding: 1rem;
            text-align: left;
            font-weight: 600;
        }

        .guide-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--light-gray);
            color: var(--text-secondary);
        }

        .guide-table tr:last-child td {
            border-bottom: none;
        }

        .guide-table tr:nth-child(even) {
            background: var(--off-white);
        }

        .guide-table tr:hover {
            background: var(--accent-light);
        }

        .guide-conclusion {
            background: linear-gradient(135deg, var(--success-light) 0%, #a7f3d0 100%);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            margin-top: 2rem;
        }

        .guide-conclusion p {
            color: #047857;
            margin-bottom: 0;
            font-weight: 500;
        }

        /* FAQ Section */
        .faq-section {
            max-width: 800px;
            margin: 0 auto;
            padding: 4rem 2rem;
        }

        .faq-section h2 {
            font-family: 'Fraunces', serif;
            font-size: 2rem;
            text-align: center;
            margin-bottom: 2rem;
        }

        .faq-item {
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            background: var(--white);
        }

        .faq-question {
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            background: none;
            border: none;
            font-size: 1rem;
            font-family: inherit;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s ease;
        }

        .faq-question:hover {
            background: var(--off-white);
        }

        .faq-question svg {
            width: 20px;
            height: 20px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question svg {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-content {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        /* Footer */
        footer {
            background: var(--text-primary);
            color: white;
            padding: 4rem 2rem 2rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 2fr;
            gap: 3rem;
        }

        .footer-brand .logo-text {
            color: white;
            font-size: 1.75rem;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: #a0aec0;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .footer-links h2 {
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 1.25rem;
            color: #a0aec0;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: white;
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 3rem auto 0;
            padding-top: 2rem;
            border-top: 1px solid #2d3748;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
            color: #718096;
        }

        .footer-legal a {
            color: #a0aec0;
            text-decoration: none;
            margin-left: 1.5rem;
        }

        .footer-legal a:hover {
            color: white;
        }

        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .mobile-menu-btn svg {
            width: 28px;
            height: 28px;
            color: var(--text-primary);
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }

            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }

            .ad-sidebar {
                flex: 1;
                min-width: 250px;
            }

            .info-card {
                flex: 1;
                min-width: 250px;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                padding: 1rem;
            }

            nav {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero {
                padding: 2.5rem 1rem 2rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .main-content {
                padding: 0 1rem 3rem;
            }

            .simulator-body {
                padding: 1.5rem;
            }

            .results-grid {
                grid-template-columns: 1fr;
            }

            .result-main-value {
                font-size: 2.5rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .guide-container {
                padding: 0 1rem;
            }

            .guide-content {
                padding: 1.5rem;
            }

            .guide-highlight {
                flex-direction: column;
                padding: 1.25rem;
            }

            .guide-article-section h3 {
                font-size: 1.3rem;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }

            .footer-legal {
                display: flex;
                gap: 1rem;
                justify-content: center;
            }

            .footer-legal a {
                margin-left: 0;
            }

            .ad-banner {
                margin: 0 1rem 2rem;
            }
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 1.25rem;
            }

            .input-wrapper input {
                padding: 0.9rem 1rem;
                padding-right: 3rem;
                font-size: 1rem;
            }

            .btn-calculate {
                padding: 1rem 1.5rem;
                font-size: 1rem;
            }

            .sidebar {
                flex-direction: column;
            }
        }