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

        :root {
            --bg-default: #e1f6fd;
            --accent-light: #f0f9e8;
            --accent-mid-light: #bae4bc;
            --accent-mid: #7bccc4;
            --accent-mid-dark: #43a2ca;
            --accent-dark: #0868ac;
            --white: #ffffff;
            --text-dark: #1a1a1a;
            
            --gap-small: 16px;
            --gap-medium: 28px;
            --gap-large: 56px;
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-default);
            color: var(--text-dark);
            line-height: 1.6;
        }

        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--accent-dark);
        }

        h1 { font-size: 2.5rem; margin-bottom: 1rem; }
        h2 { font-size: 2rem; margin-bottom: 0.875rem; }
        h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
        h4 { font-size: 1.25rem; margin-bottom: 0.5rem; }

        /* Header Navigation */
        .header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 32px;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .logo-mark {
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-mark img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .logo-text {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--accent-dark);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--accent-dark);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: var(--accent-mid-dark);
        }

        .btn {
            padding: 12px 24px;
            border-radius: 5px;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.3s;
            display: inline-block;
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background-color: var(--accent-dark);
            color: var(--white);
        }

        .btn-primary:hover {
            background-color: #065080;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent-dark);
            border: 2px solid var(--accent-dark);
        }

        .btn-secondary:hover {
            background-color: var(--accent-dark);
            color: var(--white);
        }

        .btn-accent {
            background-color: var(--accent-mid-dark);
            color: var(--white);
        }

        .btn-accent:hover {
            background-color: #2f8fb5;
        }

        /* Page Sections
        .page {
            display: none;
        }

        .page.active {
            display: block;
        } */

        /* HOME PAGE */
        
        /* Hero Section */
        .hero {
            background-color: var(--bg-default);
            min-height: 60vh;
            display: flex;
            align-items: center;
            padding: 80px 32px 60px;
        }

        .hero-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 3rem;
            margin-bottom: 24px;
            line-height: 1.2;
        }

        .hero-content p {
            font-size: 1.25rem;
            margin-bottom: 48px;
            color: #333;
        }

        .hero-cta {
            display: flex;
            gap: 20px;
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .math-illustration {
            width: 100%;
            max-width: auto;
            height: auto;
            position: relative;
        }

        .geometric-shape {
            position: absolute;
            border-radius: 8px;
            opacity: 0.7;
        }

        .shape1 {
            width: 150px;
            height: 150px;
            background-color: var(--accent-mid-light);
            top: 20%;
            left: 10%;
            transform: rotate(15deg);
        }

        .shape2 {
            width: 120px;
            height: 120px;
            background-color: var(--accent-mid);
            bottom: 25%;
            right: 15%;
            border-radius: 50%;
        }

        .shape3 {
            width: 100px;
            height: 100px;
            background-color: var(--accent-mid-dark);
            top: 50%;
            left: 40%;
            transform: rotate(-20deg);
        }

        /* Mission Section */
        .mission {
            background-color: var(--accent-light);
            padding: 60px 32px;
        }

        .mission-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .mission-statement {
            font-size: 1.375rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .value-props {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .value-prop h4 {
            margin-bottom: 12px;
        }

        /* How It Works */
        .how-it-works {
            background-color: var(--white);
            padding: 80px 32px;
        }

        .how-it-works-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .how-it-works h2 {
            text-align: center;
            margin-bottom: 56px;
        }

        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-card {
            background-color: var(--white);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }

        .step-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background-color: var(--accent-mid-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.75rem;
            font-weight: 700;
        }

        .step-card h4 {
            margin-bottom: 12px;
            color: var(--accent-dark);
        }

        /* Testimonials */
        .testimonials {
            background-color: var(--bg-default);
            padding: 70px 32px;
        }

        .testimonials-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .testimonials h2 {
            text-align: center;
            margin-bottom: 48px;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background-color: var(--accent-light);
            padding: 28px;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 16px;
            color: #333;
        }

        .testimonial-author {
            font-weight: 700;
            color: var(--accent-dark);
        }

        /* CTA Banner */
        .cta-banner {
            background-color: var(--accent-mid-dark);
            padding: 48px 32px;
            text-align: center;
        }

        .cta-banner h3 {
            color: var(--white);
            margin-bottom: 24px;
            font-size: 1.75rem;
        }

        /* Footer */
        .footer {
            background-color: var(--accent-dark);
            color: var(--white);
            padding: 48px 32px 24px;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 48px;
            margin-bottom: 32px;
        }

        .footer h4 {
            color: var(--white);
            margin-bottom: 16px;
        }

        .footer a {
            color: var(--white);
            text-decoration: none;
            display: block;
            margin-bottom: 8px;
        }

        .footer a:hover {
            text-decoration: underline;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.875rem;
        }

        /* ABOUT PAGE */
        .about-intro {
            background-color: var(--white);
            padding: 80px 32px 40px;
            text-align: center;
        }

        .about-intro h1 {
            margin-bottom: 16px;
        }

        .about-intro p {
            font-size: 1.125rem;
            color: #555;
        }

        .bio-section {
            padding: 60px 32px;
            background-color: var(--white);
        }

        .bio-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 350px 1fr;
            gap: 56px;
            align-items: start;
        }

        .bio-photo {
            width: 100%;
            border-radius: 8px;
            border: 3px solid var(--accent-mid);
        }

        .bio-text h2 {
            margin-bottom: 24px;
        }

        .bio-text p {
            margin-bottom: 20px;
            font-size: 1.0625rem;
            line-height: 1.7;
        }

        .philosophy-section {
            background-color: var(--accent-light);
            padding: 70px 32px;
        }

        .philosophy-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .philosophy-container h2 {
            text-align: center;
            margin-bottom: 48px;
        }

        .philosophy-pillars {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        .pillar {
            text-align: center;
        }

        .pillar-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background-color: var(--accent-mid-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 2rem;
        }

        .vision-section {
            background-color: var(--white);
            padding: 50px 32px;
            text-align: center;
        }

        .vision-container {
            max-width: 900px;
            margin: 0 auto;
        }

        /* SERVICES PAGE */
        .services-header {
            background-color: var(--white);
            padding: 80px 32px 40px;
            text-align: center;
            border-bottom: 3px solid var(--accent-mid);
        }

        .service-categories {
            padding: 70px 32px;
            background-color: var(--white);
        }

        .service-categories-container {
            max-width: 1300px;
            margin: 0 auto;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .service-card {
            background-color: var(--accent-light);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 36px;
        }

        .service-card-icon {
            width: 60px;
            height: 60px;
            margin-bottom: 20px;
            border-radius: 50%;
            background-color: var(--accent-mid-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.5rem;
        }

        .pricing-section {
            background-color: var(--white);
            padding: 70px 32px;
        }

        .pricing-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .pricing-container h2 {
            margin-bottom: 48px;
        }

        .pricing-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .pricing-card {
            background-color: var(--accent-light);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 40px;
        }

        .pricing-table {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .pricing-tier {
            background-color: var(--accent-light);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 40px;
            text-align: center;
        }

        .pricing-tier h3 {
            margin-bottom: 20px;
            font-size: 1.5rem;
        }

        .pricing-tier .price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-mid-dark);
            margin: 16px 0;
        }

        .pricing-tier .price span {
            font-size: 1.25rem;
            font-weight: 400;
            color: #666;
        }

        .package-price {
            margin-top: 12px;
            font-size: 1rem;
            color: #555;
        }

        .package-price .discount {
            color: var(--accent-dark);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .pricing-table {
                grid-template-columns: 1fr;
            }
        }

        .price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-mid-dark);
            margin: 16px 0;
        }

        .value-statement {
            margin-top: 32px;
            font-size: 1.125rem;
            color: var(--accent-dark);
            font-weight: 600;
        }

        .faq-section {
            background-color: var(--accent-light);
            padding: 70px 32px;
        }

        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-container h2 {
            text-align: center;
            margin-bottom: 48px;
        }

        .faq-item {
            background-color: var(--white);
            border: 1px solid var(--accent-mid-light);
            border-radius: 6px;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            color: var(--accent-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question:hover {
            background-color: var(--accent-light);
        }

        .faq-answer {
            padding: 0 24px 20px;
            display: none;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-toggle {
            font-size: 1.5rem;
            color: var(--accent-mid-dark);
        }

        /* SCHEDULE & PAY PAGE */
        .schedule-header {
            background-color: var(--white);
            padding: 80px 32px 40px;
            text-align: center;
        }

        .scheduling-widget {
            padding: 60px 32px;
            background-color: var(--white);
        }

        .scheduling-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .scheduling-container h2 {
            margin-bottom: 16px;
        }

        .scheduling-container p {
            margin-bottom: 40px;
            font-size: 1.0625rem;
        }

        .calendar-embed {
            background-color: var(--accent-light);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 48px;
            min-height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            color: #666;
        }

        .payment-section {
            background-color: var(--accent-light);
            padding: 70px 32px;
        }

        .payment-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .payment-container h2 {
            margin-bottom: 48px;
        }

        .payment-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            margin-bottom: 48px;
        }

        .payment-card {
            background-color: var(--white);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 40px;
        }

        .payment-card h3 {
            margin-bottom: 16px;
        }

        .confirmation-note {
            background-color: var(--white);
            padding: 50px 32px;
        }

        .confirmation-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .confirmation-container h3 {
            margin-bottom: 24px;
        }

        .confirmation-list {
            text-align: left;
            max-width: 600px;
            margin: 0 auto;
            line-height: 2;
        }

        .confirmation-list li {
            margin-bottom: 12px;
        }

        .slots-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin-top: 20px;
            max-height: 500px;
            overflow-y: auto;
            padding: 10px;
        }

        .slot-button {
            padding: 15px;
            border: 2px solid #e1f6fd;
            border-radius: 8px;
            background: white;
            cursor: pointer;
            transition: all 0.3s;
            text-align: left;
        }

        .slot-button:hover {
            border-color: #0868ac;
            background: #e1f6fd;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }

        .slot-button.selected {
            background: #0868ac;
            color: white;
            border-color: #0868ac;
        }

        .slot-day {
            font-weight: bold;
            font-size: 0.9rem;
            margin-bottom: 5px;
        }

        .slot-time {
            font-size: 1.1rem;
        }

        .calendar-header {
            text-align: center;
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 2px solid #e1f6fd;
        }

        /* CONTACT PAGE */
        .contact-header {
            background-color: var(--white);
            padding: 80px 32px 40px;
            text-align: center;
        }

        .contact-content {
            padding: 60px 32px;
            background-color: var(--white);
        }

        .contact-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 56px;
        }

        .contact-form {
            background-color: var(--white);
            border: 2px solid var(--accent-mid-light);
            border-radius: 6px;
            padding: 40px;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--accent-dark);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--accent-mid-light);
            border-radius: 4px;
            font-family: 'Inter', sans-serif;
            font-size: 1rem;
        }

        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }

        .contact-info {
            background-color: var(--accent-light);
            border-radius: 6px;
            padding: 40px;
        }

        .contact-info h3 {
            margin-bottom: 32px;
        }

        .contact-item {
            display: flex;
            align-items: start;
            gap: 16px;
            margin-bottom: 24px;
        }

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

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

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

            .bio-container {
                grid-template-columns: 1fr;
            }

            .contact-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                gap: 16px;
                font-size: 0.875rem;
            }

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

            .hero-cta {
                flex-direction: column;
            }

            .value-props {
                grid-template-columns: 1fr;
            }

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

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

            .philosophy-pillars {
                grid-template-columns: 1fr;
            }

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

            .pricing-cards {
                grid-template-columns: 1fr;
            }

            .payment-cards {
                grid-template-columns: 1fr;
            }

            .footer-container {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
        }

        /* Mobile Menu */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--accent-dark);
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            }

            .nav-links.active {
                display: flex;
            }
        }