/* CSS Variables - Warm, welcoming literacy theme */
:root {
    --primary: #e85d04;
    --primary-dark: #dc2f02;
    --primary-light: #f48c06;
    --secondary: #1a1a2e;
    --text: #2d3436;
    --text-light: #636e72;
    --text-lighter: #b2bec3;
    --background: #ffffff;
    --background-alt: #fef9f3;
    --border: #f0e6d3;
    --accent: #6a994e;
    --accent-light: #a7c957;
    --gradient-start: #e85d04;
    --gradient-end: #f48c06;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--background);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--secondary);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: 1.25rem; }

p {
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    box-shadow: 0 4px 14px rgba(232, 93, 4, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 93, 4, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 12px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--secondary);
    text-decoration: none;
}

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

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

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--secondary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--background-alt) 0%, var(--background) 100%);
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 24px;
}

.highlight {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

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

/* Book Stack Animation */
.book-stack {
    position: relative;
    width: 200px;
    height: 300px;
}

.book {
    position: absolute;
    width: 140px;
    height: 180px;
    border-radius: 4px 12px 12px 4px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transform-origin: bottom left;
    animation: bookFloat 3s ease-in-out infinite;
}

.book::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.book-1 {
    background: linear-gradient(135deg, #e85d04, #f48c06);
    bottom: 0;
    left: 30px;
    transform: rotate(-5deg);
    animation-delay: 0s;
}

.book-2 {
    background: linear-gradient(135deg, #6a994e, #a7c957);
    bottom: 30px;
    left: 40px;
    transform: rotate(3deg);
    animation-delay: 0.2s;
}

.book-3 {
    background: linear-gradient(135deg, #3a86ff, #60a5fa);
    bottom: 60px;
    left: 25px;
    transform: rotate(-2deg);
    animation-delay: 0.4s;
}

.book-4 {
    background: linear-gradient(135deg, #9b5de5, #c77dff);
    bottom: 90px;
    left: 45px;
    transform: rotate(4deg);
    animation-delay: 0.6s;
}

.book-5 {
    background: linear-gradient(135deg, #f72585, #ff8fab);
    bottom: 120px;
    left: 35px;
    transform: rotate(-3deg);
    animation-delay: 0.8s;
}

@keyframes bookFloat {
    0%, 100% {
        transform: translateY(0) rotate(var(--rotate, 0deg));
    }
    50% {
        transform: translateY(-8px) rotate(var(--rotate, 0deg));
    }
}

/* Credentials Section */
.credentials {
    padding: 60px 0;
    background: var(--secondary);
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.credential-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.credential-number {
    font-size: 1.75rem;
    font-weight: 800;
    color: white;
}

.credential-label {
    font-size: 0.9rem;
    color: var(--text-lighter);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    padding: 32px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.service-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(232, 93, 4, 0.1);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
    color: var(--primary);
    background: var(--background-alt);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    margin-bottom: 12px;
    color: var(--secondary);
}

.service-card > p {
    margin-bottom: 20px;
    font-size: 0.95rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    font-size: 0.9rem;
}

.service-features li {
    padding: 10px 0;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-features li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* Approach Section */
.approach {
    padding: 100px 0;
    background: var(--background-alt);
}

.approach-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.approach-step {
    text-align: center;
    padding: 24px;
    opacity: 0;
    transform: translateY(20px);
}

.approach-step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.approach-step h3 {
    margin-bottom: 12px;
}

/* Philosophy Section */
.philosophy {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary) 0%, #2d2d44 100%);
}

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

.philosophy-content h2 {
    color: white;
    margin-bottom: 24px;
}

.philosophy-content p {
    color: var(--text-lighter);
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: 20px;
}

/* About Section */
.about {
    padding: 100px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
}

.about-content.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 24px;
}

.about-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.credential-badge {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Testimonial Section */
.testimonial {
    padding: 80px 0;
    background: var(--background-alt);
}

.testimonial-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-content blockquote {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.testimonial-content cite {
    color: var(--text-light);
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--secondary);
}

.contact-content-centered {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content-centered h2 {
    color: white;
    margin-bottom: 20px;
}

.contact-content-centered p {
    color: var(--text-lighter);
    font-size: 1.1rem;
    margin-bottom: 32px;
    line-height: 1.8;
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.contact-social {
    margin-top: 24px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-lighter);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.social-link:hover {
    color: var(--primary-light);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: #0d0d1a;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-content p {
    color: var(--text-lighter);
    font-size: 0.9rem;
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .navbar .container {
        position: relative;
    }

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

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        border-radius: 0 0 16px 16px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .credentials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

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

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

    .about-credentials {
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .credentials-grid {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
    }

    .testimonial-content blockquote {
        font-size: 1.25rem;
    }

    .about-credentials {
        flex-direction: column;
        align-items: center;
    }
}