:root {
    --primary: #88BDF2;
    --primary-dark: #6A89A7;
    --primary-light: #BDDDFC;
    --secondary: #6A89A7;
    --secondary-light: #A2B7C5;
    --background: #F7FAFF;
    --background-alt: #BDDDFC;
    --card-bg: #FFFFFF;
    --card-border: #E6EEF6;
    --text-primary: #384959;
    --text-secondary: #6A89A7;
    --text-disabled: #AEB8C2;
    --button-primary-bg: #88BDF2;
    --button-primary-text: #FFFFFF;
    --button-secondary-bg: #6A89A7;
    --button-secondary-text: #FFFFFF;
    --input-bg: #FFFFFF;
    --input-border: #AEB8C2;
    --input-placeholder: #6A89A7;
    --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);
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list a {
    font-weight: 500;
    color: var(--text-secondary);
}

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

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--button-primary-bg);
    color: var(--button-primary-text) !important;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-alt) 100%);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 10px;
    background-color: rgba(136, 189, 242, 0.3);
    z-index: -1;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

.store-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--text-primary);
    color: #fff;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.store-btn:hover {
    background-color: #000;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background-color: #fff;
    border-radius: 40px;
    border: 10px solid var(--text-primary);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screen {
    width: 100%;
    height: 100%;
    background-color: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-screen-logo {
    width: 100px;
    height: 100px;
    opacity: 0.8;
}

.app-screen-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: #fff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--background);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--card-border);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.icon-box {
    width: 70px;
    height: 70px;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
}

/* Screenshots Section */
.screenshots-section {
    padding: 100px 0;
    background-color: var(--background);
}

.screenshots-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.screenshots-slider::-webkit-scrollbar {
    height: 8px;
}

.screenshots-slider::-webkit-scrollbar-track {
    background: var(--card-border);
    border-radius: 4px;
}

.screenshots-slider::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

.screenshot-item {
    flex: 0 0 auto;
    width: 220px;
    scroll-snap-align: start;
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: top;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

.screenshot-item p {
    margin-top: 15px;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Download Section */
.download-section {
    padding: 100px 0;
    background-color: var(--primary);
    color: #fff;
    text-align: center;
}

.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.download-section p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-section .hero-buttons {
    justify-content: center;
}

.store-btn.google-play-light,
.store-btn.app-store-light {
    background-color: #fff;
    color: var(--primary);
}

.store-btn.google-play-light:hover,
.store-btn.app-store-light:hover {
    background-color: #f0f0f0;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: #fff;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    margin: 20px 0 10px;
    font-size: 1.5rem;
}

.footer-brand p {
    opacity: 0.7;
}

.footer-logo {
    height: 50px;
    width: auto;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.7;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary);
}

.footer-contact p {
    opacity: 0.7;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.social-link svg {
    fill: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.5;
    font-size: 0.9rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: #fff;
    padding: 40px;
    border-radius: 24px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
    animation: slideUp 0.3s ease;
    box-shadow: var(--shadow-lg);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-icon {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.6;
}

.modal-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #833AB4, #FD1D1D, #F77737);
    color: #fff;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.modal-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(131, 58, 180, 0.3);
}

.modal-btn svg {
    fill: #fff;
}

/* Responsive */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

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

    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
        z-index: 1001;
    }

    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: #fff;
        flex-direction: column;
        justify-content: center;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
    }

    .nav-list.active {
        right: 0;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .screenshot-item {
        width: 180px;
    }

    .screenshot-item img {
        height: 320px;
    }
}