/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-border: #e5e7eb;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

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

/* Hamburger Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
    position: relative;
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Apps Section */
.apps-section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    text-align: center;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.app-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
}

.app-card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: white;
    overflow: hidden;
}

.app-card-icon-image {
    background: transparent;
}

.app-icon-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.app-card-badge-wrapper {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    z-index: 10;
}

.app-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.app-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
}

.app-card-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
}

.app-card-platforms {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-top: auto;
}

.platform-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg-light);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.875rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3), 0 1px 3px rgba(0, 0, 0, 0.1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.coming-soon-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.coming-soon-badge:hover::before {
    left: 100%;
}

.coming-soon-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4), 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* About Section */
.about-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.about-text {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .header .container {
        position: relative;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-xl) var(--spacing-md);
        gap: var(--spacing-md);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 100;
        border-left: 1px solid var(--color-border);
    }

    .nav.active {
        right: 0;
    }

    body.menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 99;
        animation: fadeIn 0.3s ease;
    }

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

    .nav-link {
        padding: var(--spacing-sm) 0;
        font-size: 1.1rem;
    }

    .nav-link::after {
        display: none;
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .apps-section,
    .about-section {
        padding: var(--spacing-lg) 0;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

/* App Detail Page Styles */
.logo {
    text-decoration: none;
    color: inherit;
}

.app-hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
}

.app-hero-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.app-hero-icon {
    flex-shrink: 0;
}

.app-hero-icon .app-card-icon {
    width: 120px;
    height: 120px;
    font-size: 4rem;
}

.app-hero-text {
    flex: 1;
}

.app-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.app-hero-description {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.app-hero-platforms {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.app-hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.download-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.download-btn-ios,
.download-btn-macos,
.download-btn-android,
.download-btn-windows {
    padding: 0;
    background: transparent;
    border-radius: 0;
}

.download-btn-ios:hover,
.download-btn-macos:hover,
.download-btn-android:hover,
.download-btn-windows:hover {
    background: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.download-icon {
    height: 40px;
    width: auto;
    display: block;
    transition: var(--transition);
}

.download-btn-ios:hover .download-icon,
.download-btn-macos:hover .download-icon,
.download-btn-android:hover .download-icon,
.download-btn-windows:hover .download-icon {
    opacity: 0.9;
}

.download-btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.7);
}

.download-btn-disabled:hover {
    transform: none;
    box-shadow: none;
    background-color: transparent;
}

.download-btn-disabled:hover .download-icon {
    opacity: 0.5;
}

.app-content {
    padding: var(--spacing-xl) 0;
}

.app-section {
    margin-bottom: var(--spacing-xl);
}

.app-section:last-child {
    margin-bottom: 0;
}

.app-section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.screenshot-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.screenshot-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.features-list {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-md);
}

.features-list li {
    padding: var(--spacing-sm) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text);
    font-size: 1.1rem;
}

.features-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

.app-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

/* Mobile Responsive for Detail Page */
@media (max-width: 768px) {
    .app-hero-content {
        flex-direction: column;
        text-align: center;
    }

    .app-hero-icon .app-card-icon {
        width: 100px;
        height: 100px;
        font-size: 3rem;
    }

    .app-hero-actions {
        justify-content: center;
    }

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