/* Global Styles */
:root {
    --primary: #4a6cf7;
    --primary-dark: #3a56c5;
    --secondary: #6c757d;
    --dark-bg: #0F172A;
    --light-bg: #F8FAFC;
    --dark-text: #1E293B;
    --light-text: #F8FAFC;
    --light-gray: #e9ecef;
    --white: #ffffff;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --hover-scale: scale(1.03);
    --active-scale: scale(0.98);
    --icon-bg: #472090;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--light-text);
    background-color: var(--dark-bg);
    transition: background-color 0.3s, color 0.3s;
}

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

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

a:hover {
    color: var(--primary-dark);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn:hover {
    transform: var(--hover-scale);
}

.btn:hover::after {
    opacity: 1;
}

.btn:active {
    transform: var(--active-scale);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 14px rgba(74, 108, 247, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    box-shadow: 0 6px 20px rgba(74, 108, 247, 0.6);
}

.btn-secondary {
    background-color: var(--secondary);
    color: var(--white);
    border: none;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--light-text);
    background-color: transparent;
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4 {
    margin-bottom: 20px;
    line-height: 1.2;
}

/* Header Styles */
header {
    background-color: var(--dark-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

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

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

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 24px;
    margin-bottom: 0;
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

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

.language-selector .lang-flag {
    background-color: transparent;
    border: 2px solid transparent;
    padding: 0;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    overflow: hidden;
}

.language-selector .lang-flag:hover {
    opacity: 1;
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.language-selector .lang-flag.active {
    border-color: var(--primary);
    opacity: 1;
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.3);
}

.language-selector .lang-flag span {
    width: 24px !important;
    height: 24px !important;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a2234 0%, #0d1526 100%);
    padding: 100px 0;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--light-text);
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: rgba(248, 250, 252, 0.8);
}

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

/* Hero Buttons */
.download-btn {
    position: relative;
    z-index: 10;
    color: white;
}

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

.github-btn {
    position: relative;
    z-index: 5;
}

.github-btn:hover {
    background-color: rgba(31, 41, 55, 0.8);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

/* Features Section */
.features {
    background-color: var(--white);
    text-align: center;
}

.features h2 {
    font-size: 36px;
    margin-bottom: 50px;
}

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

.feature-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

/* Download Section */
.download {
    background-color: #f0f4ff;
    text-align: center;
}

.download h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.download p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.download-option {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    width: 250px;
    color: var(--text-color);
}

.download-option:hover {
    transform: translateY(-5px);
}

.download-option i {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.download-option h3 {
    margin-bottom: 15px;
}

.download-option .btn {
    margin-top: 15px;
    background-color: var(--primary-color);
    color: var(--white);
}

/* How to Use Section */
.how-to-use {
    background-color: var(--white);
    text-align: center;
}

.how-to-use h2 {
    font-size: 36px;
    margin-bottom: 50px;
}

.steps {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    padding: 20px;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
}

/* FAQ Section */
.faq {
    background-color: #f0f4ff;
}

.faq h2 {
    font-size: 36px;
    margin-bottom: 50px;
    text-align: center;
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.accordion-header {
    background-color: var(--white);
    padding: 15px 20px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
}

.accordion-header::after {
    content: '+';
    position: absolute;
    right: 20px;
    transition: var(--transition);
}

.accordion-item.active .accordion-header::after {
    content: '-';
}

.accordion-content {
    background-color: var(--white);
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    padding: 0 20px 20px;
    max-height: 1000px;
}

/* Footer */
footer {
    background-color: #2d3748;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #a0aec0;
}

.footer-column a {
    display: block;
    color: #e2e8f0;
    margin-bottom: 10px;
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #4a5568;
}

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

    .hero-content, .hero-image {
        text-align: center;
    }

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

    .steps {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 15px;
    }

    .nav-links {
        margin: 15px 0;
    }

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

    .download-options {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
    }
    
    .hero-grid {
        grid-template-columns: 1fr !important;
    }
    
    .grid.grid-cols-2,
    .grid.grid-cols-3 {
        grid-template-columns: 1fr !important;
    }
}

/* Loading Skeleton Animation */
@keyframes pulse {
    0% {
        background-color: rgba(200, 200, 200, 0.5);
    }
    50% {
        background-color: rgba(200, 200, 200, 0.8);
    }
    100% {
        background-color: rgba(200, 200, 200, 0.5);
    }
}

@keyframes darkPulse {
    0% {
        background-color: rgba(50, 50, 50, 0.5);
    }
    50% {
        background-color: rgba(50, 50, 50, 0.8);
    }
    100% {
        background-color: rgba(50, 50, 50, 0.5);
    }
}

.skeleton {
    animation: pulse 1.5s infinite;
    background-color: rgba(200, 200, 200, 0.5);
    border-radius: var(--border-radius);
    min-height: 1rem;
    min-width: 2rem;
    display: inline-block;
}

body.dark .skeleton {
    animation: darkPulse 1.5s infinite;
    background-color: rgba(50, 50, 50, 0.5);
}

/* Translation loading state */
.loading-translations [data-i18n],
.loading-translations [data-i18n-placeholder],
.loading-translations [data-i18n-title] {
    position: relative;
    color: transparent !important;
    overflow: hidden;
    min-height: 1rem;
}

.loading-translations [data-i18n]::before,
.loading-translations [data-i18n-placeholder]::before,
.loading-translations [data-i18n-title]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
    animation: pulse 1.5s infinite;
    background-color: rgba(200, 200, 200, 0.5);
    z-index: 1;
}

body.dark .loading-translations [data-i18n]::before,
body.dark .loading-translations [data-i18n-placeholder]::before,
body.dark .loading-translations [data-i18n-title]::before {
    animation: darkPulse 1.5s infinite;
    background-color: rgba(50, 50, 50, 0.5);
}

/* Language Selector Styling */
.language-selector {
    position: relative;
    display: flex;
    flex-direction: row;
    align-items: center;
}

.language-selector select {
    appearance: none;
    background: transparent;
    border: 1px solid var(--primary);
    border-radius: 4px;
    padding: 0.25rem 1.5rem 0.25rem 0.5rem;
    cursor: pointer;
    color: inherit;
    font-size: 14px;
    min-width: 80px;
}

body.dark .language-selector select {
    border-color: rgba(255, 255, 255, 0.3);
}

/* Remove dropdown arrow */
.language-selector::after {
    content: '';
    display: none;
    pointer-events: none;
}

/* Hide content while loading translations */
.content-loading {
    min-height: 20px;
    position: relative;
    color: transparent !important;
}

.content-loading::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(200, 200, 200, 0.5);
    animation: pulse 1.5s infinite;
    border-radius: var(--border-radius);
    z-index: 1;
}

body.dark .content-loading::before {
    background-color: rgba(50, 50, 50, 0.5);
    animation: darkPulse 1.5s infinite;
}

/* React component loading styles */
.react-loading {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

.react-loaded {
    opacity: 1;
}

/* Skeleton screen styles for different components */
.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
    width: 100%;
    border-radius: 3px;
    animation: pulse 1.5s infinite;
    background-color: rgba(200, 200, 200, 0.5);
}

body.dark .skeleton-text {
    animation: darkPulse 1.5s infinite;
    background-color: rgba(50, 50, 50, 0.5);
}

.skeleton-text.short {
    width: 40%;
}

.skeleton-text.medium {
    width: 60%;
}

.skeleton-text.long {
    width: 80%;
}

.skeleton-button {
    height: 2.5rem;
    width: 8rem;
    border-radius: var(--border-radius);
    animation: pulse 1.5s infinite;
    background-color: rgba(200, 200, 200, 0.5);
    display: inline-block;
}

body.dark .skeleton-button {
    animation: darkPulse 1.5s infinite;
    background-color: rgba(50, 50, 50, 0.5);
}

.skeleton-image {
    aspect-ratio: 16/9;
    width: 100%;
    border-radius: var(--border-radius);
    animation: pulse 1.5s infinite;
    background-color: rgba(200, 200, 200, 0.5);
}

body.dark .skeleton-image {
    animation: darkPulse 1.5s infinite;
    background-color: rgba(50, 50, 50, 0.5);
}

.skeleton-card {
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--white);
    box-shadow: var(--box-shadow);
}

body.dark .skeleton-card {
    background-color: var(--dark-bg);
}