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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 50%, #f3e8ff 100%);
    min-height: 100vh;
    color: #1f2937;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 10;
}

.header .container {
    padding: 1.5rem 1rem;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-box {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.logo-img {
    width: 100%;
    height: 100%;
    border-radius: 1rem;
    object-fit: contain;
    padding: 4px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: white;
}

.header-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #111827;
}

.logo-subtitle {
    color: #4b5563;
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

/* Main Content */
.main-content {
    padding: 3rem 0;
    flex: 1;
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.25rem;
    color: #4b5563;
    max-width: 48rem;
    margin: 0 auto;
}

/* Gallery Container */
.gallery-container {
    background: white;
    border-radius: 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

@media (min-width: 1024px) {
    .gallery-container {
        padding: 3rem;
    }
}

.gallery-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

/* Phone Section */
.phone-section {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
}

.phone-frame {
    position: relative;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    border-radius: 3rem;
    padding: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 28px;
    background: black;
    border-radius: 0 0 1.5rem 1.5rem;
    z-index: 10;
}

.phone-screen {
    position: relative;
    background: black;
    border-radius: 2.5rem;
    overflow: hidden;
    width: 375px;
    height: 812px;
}

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.badge {
    position: absolute;
    top: -1rem;
    right: -1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Description Section */
.description-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.screenshot-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.counter {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    width: fit-content;
}

.screenshot-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #111827;
}

.screenshot-description {
    font-size: 1.125rem;
    color: #4b5563;
    line-height: 1.75;
}

/* Navigation Section */
.navigation-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 0;
}

.nav-btn-prev {
    background: #f3f4f6;
    color: #374151;
}

.nav-btn-prev:hover {
    background: #e5e7eb;
}

.nav-btn-next {
    background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
    color: white;
}

.nav-btn-next:hover {
    background: linear-gradient(135deg, #2563eb 0%, #9333ea 100%);
}

.arrow-icon {
    width: 24px;
    height: 24px;
}

/* Dots Indicator */
.dots-container {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
    flex-wrap: wrap;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #d1d5db;
    padding: 0;
}

.dot:hover {
    background: #9ca3af;
}

.dot.active {
    width: 32px;
    background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
}

/* Features Section */
.features-section {
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}

.features-title {
    font-weight: 600;
    color: #111827;
    margin-bottom: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.feature-icon {
    width: 32px;
    height: 32px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 20px;
    height: 20px;
}

.feature-icon-green {
    background: #dcfce7;
    color: #16a34a;
}

.feature-icon-blue {
    background: #dbeafe;
    color: #2563eb;
}

.feature-icon-purple {
    background: #e9d5ff;
    color: #9333ea;
}

.feature-icon-orange {
    background: #fed7aa;
    color: #ea580c;
}

.feature-name {
    font-weight: 500;
    color: #111827;
    font-size: 0.875rem;
}

.feature-desc {
    font-size: 0.75rem;
    color: #6b7280;
}

/* Screenshots Grid Section */
.screenshots-grid-section {
    margin-top: 4rem;
}

.grid-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 2rem;
    text-align: center;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .screenshots-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .screenshots-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1280px) {
    .screenshots-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.screenshot-thumbnail {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    aspect-ratio: 9 / 19.5;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.screenshot-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screenshot-thumbnail:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

.screenshot-thumbnail.active {
    box-shadow: 0 0 0 4px #3b82f6;
    transform: scale(1.05);
}

.thumbnail-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1rem;
}

.screenshot-thumbnail:hover .thumbnail-overlay {
    opacity: 1;
}

.thumbnail-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.25rem;
}

.thumbnail-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
}

.thumbnail-checkmark {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 32px;
    height: 32px;
    background: #3b82f6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumbnail-checkmark svg {
    width: 20px;
    height: 20px;
    color: white;
}

/* Download Section */
.download-section {
    margin-top: 4rem;
    background: linear-gradient(135deg, #2563eb 0%, #a855f7 100%);
    border-radius: 2rem;
    padding: 3rem;
    text-align: center;
    color: white;
    box-shadow: 0 25px 50px rgba(37, 99, 235, 0.3);
}

.download-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.download-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.download-btn {
    background: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1.125rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.store-icon {
    width: 24px;
    height: 24px;
}

.download-btn-ios {
    color: #2563eb;
}

.download-btn-ios:hover {
    background: #f3f4f6;
    transform: translateY(-2px);
}

.download-btn-android {
    color: #a855f7;
}

.download-btn-android:hover {
    background: #f3f4f6;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: #111827;
    color: white;
    padding: 3rem 0;
    margin-top: 4rem;
}

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

.footer-text {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.875rem;
    }

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

    .gallery-container {
        padding: 1.5rem;
    }

    .phone-screen {
        width: 280px;
        height: 607px;
    }

    .gallery-grid {
        gap: 2rem;
    }

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

    .screenshot-description {
        font-size: 1rem;
    }

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

    .navigation-section {
        flex-wrap: wrap;
    }

    .dots-container {
        margin-left: 0;
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .download-section {
        padding: 1.5rem;
    }

    .download-buttons {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .logo-title {
        font-size: 1.5rem;
    }

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

    .phone-screen {
        width: 240px;
        height: 520px;
    }

    .screenshot-title {
        font-size: 1.25rem;
    }

    .nav-btn {
        width: 48px;
        height: 48px;
    }

    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}