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

        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background: var(--page-bg);
            color: var(--text-primary);
            min-height: 100vh;
        }

        /* Header */
        .page-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            position: sticky;
            top: 0;
            z-index: 100;
        }

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

        .logo-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 10px;
        }

        .logo-img {
            height: 32px;
            width: auto;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            color: var(--text-secondary);
            background: var(--surface-soft);
            border: 1px solid var(--border);
            transition: all 0.15s ease;
        }

        .btn-back:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .btn-back .material-icons {
            font-size: 18px;
        }

        .theme-toggle {
            padding: 8px;
            border-radius: 6px;
            background: var(--surface-soft);
            border: 1px solid var(--border);
            cursor: pointer;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .theme-toggle:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .theme-toggle .material-icons {
            font-size: 20px;
        }

        /* Hide theme icon based on mode */
        [data-theme="dark"] .icon-dark { display: none; }
        [data-theme="light"] .icon-light,
        :root:not([data-theme="dark"]) .icon-light { display: none; }

        /* Main Content */
        .features-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 24px 80px;
        }

        /* Hero Section */
        .features-hero {
            text-align: center;
            margin-bottom: 60px;
        }

        .features-hero h1 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--primary), #6366f1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .features-hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 60px;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 28px;
            transition: all 0.2s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.1);
            border-color: var(--primary);
        }

        .feature-card {
            text-align: left;
        }

        .feature-card h3 {
            text-align: center;
        }

        .feature-card .icon {
            width: 56px;
            height: 56px;
            background: var(--primary-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .feature-card .icon .material-icons {
            font-size: 28px;
            color: var(--primary);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* How It Works Section */
        .how-section {
            margin-bottom: 60px;
            padding: 48px;
            background: linear-gradient(135deg, var(--primary-soft), transparent);
            border-radius: 16px;
            border: 1px solid var(--border);
        }

        .how-section h2 {
            font-size: 28px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 40px;
        }

        .how-steps {
            max-width: 800px;
            margin: 0 auto;
        }

        .how-step {
            display: flex;
            gap: 20px;
            margin-bottom: 32px;
            align-items: flex-start;
        }

        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
        }

        .step-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Benefits Section */
        .benefits-section {
            margin-bottom: 60px;
        }

        .benefits-section h2 {
            font-size: 28px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 32px;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        @media (max-width: 1024px) {
            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .benefits-grid {
                grid-template-columns: 1fr;
            }
        }

        .benefit-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .benefit-card .material-icons {
            font-size: 28px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .benefit-card h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .benefit-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* CTA Section */
        .cta-section {
            text-align: center;
            padding: 48px;
            background: var(--surface);
            border-radius: 16px;
            border: 1px solid var(--border);
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-buttons .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.15s ease;
        }

        .cta-buttons .btn-primary {
            background: var(--primary);
            color: white;
        }

        .cta-buttons .btn-primary:hover {
            background: var(--primary-hover);
        }

        .cta-buttons .btn-secondary {
            background: var(--surface-soft);
            color: var(--text-primary);
            border: 1px solid var(--border);
        }

        .cta-buttons .btn-secondary:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        /* Footer */
        .page-footer {
            text-align: center;
            padding: 32px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .page-footer a {
            color: var(--text-secondary);
            text-decoration: none;
        }

        .page-footer a:hover {
            color: var(--primary);
        }