/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --background: #ffffff;
    --border-color: #e5e7eb;
    --section-padding: 4rem 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background);
}

/* Container */
.nav__container,
.hero__container,
.products__container,
.contact__container,
.footer__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav {
    padding: 1rem 0;
}

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

.nav__logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav__link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav__link:hover {
    color: var(--primary-color);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
    padding: 4px;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav__menu--open ~ .nav__toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__menu--open ~ .nav__toggle span:nth-child(2) {
    opacity: 0;
}

.nav__menu--open ~ .nav__toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    padding: 8rem 0 var(--section-padding);
    text-align: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero__description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn--primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Products Section */
.products {
    padding: var(--section-padding);
    background: #f9fafb;
}

.products__title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

.product__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.product__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.product__icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.product__header .product__title {
    margin-bottom: 0;
}

.product__description {
    color: var(--text-light);
    line-height: 1.6;
}

.product__availability {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.product__download {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

.download-btn {
    display: inline-block;
    text-decoration: none;
    background: var(--text-color);
    color: white;
    border-radius: 0.75rem;
    padding: 0.75rem 1.5rem;
    transition: transform 0.3s ease, background-color 0.3s ease;
    width: 180px;
    text-align: left;
}

.download-btn:hover {
    transform: translateY(-2px);
    background: #374151;
}

.download-btn--ios {
    background: #000000;
}

.download-btn--ios:hover {
    background: #1f1f1f;
}

.download-btn--android {
    background: #34a853;
}

.download-btn--android:hover {
    background: #2d8f47;
}

.download-btn__content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.download-btn__icon {
    font-size: 1.5rem;
}

.download-btn__text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.download-btn__label {
    font-size: 0.75rem;
    opacity: 0.8;
}

.download-btn__store {
    font-size: 1rem;
    font-weight: 600;
}

.download-btn__image {
    height: 60px;
    width: auto;
    border-radius: 8px;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
}

.contact__title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.contact__content {
    display: flex;
    justify-content: center;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact__item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact__icon {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact__details h3 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

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

/* Privacy Policy Section */
.privacy-policy {
    padding: 8rem 0 var(--section-padding);
}

.privacy-policy__container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.privacy-policy__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.privacy-policy__effective-date {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.privacy-policy__content {
    line-height: 1.8;
    color: var(--text-color);
}

.privacy-policy__content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: var(--text-color);
}

.privacy-policy__content p {
    margin-bottom: 1rem;
}

.privacy-policy__content strong {
    font-weight: 600;
    color: var(--text-color);
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 2rem 0 1rem;
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer__brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer__brand p {
    color: #9ca3af;
}

.footer__links ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.footer__links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer__links a:hover {
    color: white;
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid #374151;
    text-align: center;
    color: #9ca3af;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav__menu.nav__menu--open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__description {
        font-size: 1.1rem;
    }
    
    .products__title,
    .contact__title {
        font-size: 2rem;
    }
    
    .contact__content {
        justify-content: center;
    }
    
    .privacy-policy__title {
        font-size: 2rem;
    }
    
    .privacy-policy__content h2 {
        font-size: 1.25rem;
    }
    
    .footer__content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer__links ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav__container,
    .hero__container,
    .products__container,
    .contact__container,
    .privacy-policy__container,
    .footer__container {
        padding: 0 1rem;
    }
    
    :root {
        --section-padding: 2rem 0;
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .product {
        padding: 1.5rem;
    }
    
    .product__header {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .product__icon {
        width: 50px;
        height: 50px;
    }
    
    .download-btn {
        width: 100%;
        max-width: 200px;
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
    
    .download-btn__content {
        justify-content: center;
        gap: 0.5rem;
    }
    
    .download-btn__icon {
        font-size: 1.25rem;
    }
    
    .download-btn__store {
        font-size: 0.875rem;
    }
    
    .footer__links ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .products__grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .contact__item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
}