/* Modern, Complex, Beautiful Design - Ledger Live Security Site */

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --bg-gradient-start: #0f0c29;
    --bg-gradient-end: #302b63;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header & Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--highlight-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight-color);
    transition: var(--transition);
}

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

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

/* Language Switcher */
.lang-switcher {
    position: relative;
    display: inline-block;
}

.lang-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.9rem;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--highlight-color);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.lang-switcher.active .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.lang-dropdown a:last-child {
    border-bottom: none;
}

.lang-dropdown a:hover,
.lang-dropdown a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding: 4rem 2rem;
    text-align: center;
    background: radial-gradient(circle at center, rgba(233, 69, 96, 0.1) 0%, transparent 70%);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #e94560 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Content Blocks */
.content-section {
    margin-bottom: 4rem;
}

.content-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 1rem;
}

.content-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--highlight-color);
    border-radius: 2px;
}

.content-section h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.content-section p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

/* Card Design */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--highlight-color);
    box-shadow: 0 12px 40px rgba(233, 69, 96, 0.2);
}

.card h3 {
    margin-top: 0;
    color: var(--highlight-color);
}

/* Image Styling */
.content-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 12px;
    margin: 2rem auto;
    display: block;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--highlight-color);
}

.feature-item h4 {
    color: var(--highlight-color);
    margin-bottom: 0.5rem;
}

/* FAQ Section */
.faq-section {
    margin: 4rem 0;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--highlight-color);
    transition: var(--transition);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-secondary);
    margin: 0;
}

/* Internal Links */
.internal-links {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
}

.internal-links h3 {
    margin-top: 0;
    color: var(--highlight-color);
}

.internal-links ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.internal-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.75rem;
    display: block;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.internal-links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--highlight-color);
}

/* Footer */
.footer {
    background: rgba(26, 26, 46, 0.95);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        padding: 1rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }

    .main-content {
        padding: 1rem;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .card {
        padding: 1.5rem;
    }

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

    .internal-links ul {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .content-section h2 {
        font-size: 1.5rem;
    }

    .content-section h3 {
        font-size: 1.25rem;
    }
}

/* Smooth Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: var(--highlight-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #d63447;
}

/* Additional Design Blocks */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-card {
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.1) 0%, rgba(233, 69, 96, 0.05) 100%);
    border: 1px solid rgba(233, 69, 96, 0.3);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-10px);
    border-color: var(--highlight-color);
    box-shadow: 0 15px 45px rgba(233, 69, 96, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--highlight-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Warning Box */
.warning-box {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1) 0%, rgba(255, 193, 7, 0.05) 100%);
    border-left: 4px solid #ffc107;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.warning-box h4 {
    color: #ffc107;
    margin-bottom: 0.5rem;
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(33, 150, 243, 0.05) 100%);
    border-left: 4px solid #2196f3;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.info-box h4 {
    color: #2196f3;
    margin-bottom: 0.5rem;
}

/* Success Box */
.success-box {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(76, 175, 80, 0.05) 100%);
    border-left: 4px solid #4caf50;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.success-box h4 {
    color: #4caf50;
    margin-bottom: 0.5rem;
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* Image Gallery */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    aspect-ratio: 16/9;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Step List */
.step-list {
    list-style: none;
    counter-reset: step-counter;
    margin: 2rem 0;
}

.step-list li {
    counter-increment: step-counter;
    position: relative;
    padding-left: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-left: 2px solid var(--border-color);
}

.step-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: -1rem;
    top: 0;
    background: var(--highlight-color);
    color: var(--text-primary);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-list li:last-child {
    border-left: none;
}

/* Quote Block */
.quote-block {
    background: var(--card-bg);
    border-left: 4px solid var(--highlight-color);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 8px;
    font-style: italic;
    position: relative;
}

.quote-block::before {
    content: '"';
    font-size: 4rem;
    color: var(--highlight-color);
    position: absolute;
    top: -1rem;
    left: 1rem;
    opacity: 0.3;
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: rgba(233, 69, 96, 0.2);
    color: var(--text-primary);
    font-weight: 600;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--highlight-color);
    color: var(--text-primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0.25rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        margin-top: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .two-column {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
}