/* ===== CSS Variables ===== */
:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --text: #334155;
    --text-light: #64748b;
    --text-dark: #1e293b;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --success: #10b981;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
    border-color: var(--secondary);
}

.btn-secondary:hover {
    background: var(--text-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

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

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    margin-bottom: 10px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
    color: var(--primary);
}

.logo-text {
    font-family: 'Poppins', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--secondary);
}

.logo-sub {
    display: block;
    font-size: 10px;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.nav-list {
    display: flex;
    gap: 35px;
}

.nav-link {
    font-weight: 500;
    color: var(--text);
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--secondary);
    transition: var(--transition);
}


/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-dark) 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    max-width: 700px;
    color: var(--white);
    padding: 40px 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 35px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero .btn-outline {
    color: var(--white);
    border-color: var(--white);
}

.hero .btn-outline:hover {
    background: var(--white);
    color: var(--primary);
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-dark) 100%);
    padding: 140px 0 60px;
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 10px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===== Features Section ===== */
.features {
    padding: 80px 0;
    background: var(--gray-50);
}

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

.feature-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

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

/* ===== Section Titles ===== */
.section-title {
    font-size: 2rem;
    margin-bottom: 15px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.text-center {
    text-align: center;
}

/* ===== About Preview ===== */
.about-preview {
    padding: 80px 0;
}

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

.about-image-placeholder {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    border-radius: var(--radius-lg);
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.about-image-placeholder.large {
    height: 400px;
}

.about-content p {
    margin-bottom: 20px;
    color: var(--text);
}

/* ===== Products Preview ===== */
.products-preview {
    padding: 80px 0;
    background: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-image {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.product-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.product-link {
    color: var(--primary);
    font-weight: 500;
}

.product-link:hover {
    color: var(--primary-dark);
}


/* ===== Why AAC Section ===== */
.why-aac {
    padding: 80px 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.benefit-item {
    text-align: center;
    padding: 25px 15px;
    background: var(--gray-50);
    border-radius: var(--radius);
    transition: var(--transition);
}

.benefit-item:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.benefit-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.benefit-item h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.benefit-item p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 80px 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    color: var(--white);
}

.cta-content h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 15px;
}

.cta-content p {
    opacity: 0.9;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--secondary);
    color: var(--gray-300);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    color: var(--primary-light);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-sub {
    color: var(--gray-300);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a:hover {
    color: var(--primary-light);
}

.contact-info li {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.footer-bottom {
    padding: 25px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* ===== About Page ===== */
.about-section {
    padding: 80px 0;
}

.about-main {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    align-items: start;
}

.about-text h2 {
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text);
}

/* ===== Mission & Vision ===== */
.mission-vision {
    padding: 80px 0;
    background: var(--gray-50);
}

.mv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.mv-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.mv-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.mv-card h3 {
    margin-bottom: 15px;
}

/* ===== Why Choose Us ===== */
.why-choose-us {
    padding: 80px 0;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.reason-card {
    padding: 30px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.reason-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.reason-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 15px;
}

.reason-card h4 {
    margin-bottom: 10px;
}

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

/* ===== Stats Section ===== */
.stats-section {
    padding: 60px 0;
    background: var(--primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
    color: var(--white);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}


/* ===== Products Page ===== */
.products-section {
    padding: 80px 0;
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 80px;
    padding-bottom: 80px;
    border-bottom: 1px solid var(--gray-200);
}

.product-detail:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.product-detail.reverse {
    grid-template-columns: 1.2fr 1fr;
}

.product-detail.reverse .product-detail-image {
    order: 2;
}

.product-image-placeholder {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    border-radius: var(--radius-lg);
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.product-detail-content h2 {
    margin-bottom: 20px;
}

.product-detail-content p {
    margin-bottom: 20px;
    color: var(--text);
}

.product-detail-content h4 {
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-list {
    margin-bottom: 25px;
}

.feature-list li {
    padding: 8px 0 8px 25px;
    position: relative;
    color: var(--text);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* ===== Product Categories ===== */
.product-categories {
    padding: 80px 0;
    background: var(--gray-50);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.category-card {
    background: var(--white);
    padding: 25px 15px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.category-card h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.category-card p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== Contact Page ===== */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
}

.contact-form-wrapper h2 {
    margin-bottom: 10px;
}

.contact-form-wrapper > p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.contact-form {
    background: var(--gray-50);
    padding: 35px;
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Contact Info ===== */
.contact-info-card {
    background: var(--gray-50);
    padding: 35px;
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
}

.contact-info-card h3 {
    margin-bottom: 25px;
}

.info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.info-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.quick-contact {
    background: var(--primary);
    color: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
}

.quick-contact h3 {
    color: var(--white);
    margin-bottom: 10px;
}

.quick-contact p {
    opacity: 0.9;
    margin-bottom: 20px;
}

/* ===== Map Section ===== */
.map-section {
    padding: 60px 0;
    background: var(--gray-50);
}

.map-placeholder {
    background: var(--gray-200);
    height: 350px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.map-note {
    font-size: 0.9rem;
    margin-top: 10px;
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: 80px 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.faq-item {
    padding: 25px;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.faq-item h4 {
    margin-bottom: 10px;
    font-size: 1rem;
}

.faq-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}


/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .reasons-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .about-grid,
    .about-main,
    .mv-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail,
    .product-detail.reverse {
        grid-template-columns: 1fr;
    }
    
    .product-detail.reverse .product-detail-image {
        order: 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .reasons-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 25px 20px;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* ===== Utility Classes ===== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }