/* Modern Component Library - 2025 Standards */

/* Logo Components */
.logo {
    height: 40px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
    transition: all var(--animation-duration-base) var(--animation-timing);
    filter: brightness(1);
}

.logo:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}

.footer-logo {
    height: 32px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    opacity: 0.9;
    transition: all var(--animation-duration-base) var(--animation-timing);
}

.footer-logo:hover {
    opacity: 1;
    transform: scale(1.02);
}

/* Enhanced Navigation */
.navbar {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: var(--z-fixed);
    padding: 0;
    transition: all var(--animation-duration-base) var(--animation-timing);
    height: 80px;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95);
    border-bottom-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    z-index: 1;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    position: relative;
    transition: all var(--animation-duration-base) var(--animation-timing);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--animation-duration-base) var(--animation-timing);
    transform: translateX(-50%);
}

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

.nav-menu a:hover::after {
    width: 80%;
}

.nav-menu a:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Modern Buttons */
.btn-primary,
.btn-secondary {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
    will-change: transform;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    font-family: inherit;
    transition: all var(--animation-duration-base) var(--animation-timing);
    letter-spacing: 0.025em;
    line-height: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%);
    transition: left var(--animation-duration-slow) var(--animation-timing);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
    filter: brightness(1.05);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    font-family: inherit;
    transition: all var(--animation-duration-base) var(--animation-timing);
    letter-spacing: 0.025em;
    line-height: 1;
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.btn-secondary:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Enhanced Feature Cards */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: all var(--animation-duration-base) var(--animation-timing);
    transform: translateZ(0);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform var(--animation-duration-base) var(--animation-timing);
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-xl);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-warm);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
    transition: all var(--animation-duration-base) var(--animation-timing);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-md);
}

.feature-title {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.feature-description {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    flex-grow: 1;
    margin: 0;
}

/* Stats Components */
.stat {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-subtle);
    transition: all var(--animation-duration-base) var(--animation-timing);
    position: relative;
    overflow: hidden;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-success);
    opacity: 0;
    transition: opacity var(--animation-duration-base) var(--animation-timing);
}

.stat:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.stat:hover::before {
    opacity: 0.05;
}

.stat h3 {
    background: var(--gradient-success);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    position: relative;
    z-index: 1;
    white-space: nowrap;
}

.stat p {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    margin: 0;
    font-weight: 500;
    position: relative;
    z-index: 1;
    line-height: 1.4;
    word-wrap: break-word;
    hyphens: auto;
}

/* AI Showcase Component */
.ai-showcase {
    width: 300px;
    height: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: all var(--animation-duration-slow) var(--animation-timing);
}

.ai-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.1;
    border-radius: var(--border-radius-xl);
    transition: opacity var(--animation-duration-base) var(--animation-timing);
}

.ai-showcase:hover {
    transform: scale(1.05) rotate(2deg);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-2xl);
}

.ai-showcase:hover::before {
    opacity: 0.15;
}

.ai-logo {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-8xl);
    font-weight: 800;
    position: relative;
    z-index: 1;
    transition: all var(--animation-duration-base) var(--animation-timing);
}

.ai-showcase:hover .ai-logo {
    transform: scale(1.1);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--spacing-xs);
    border: none;
    background: none;
    gap: 4px;
    border-radius: var(--border-radius-sm);
    transition: all var(--animation-duration-base) var(--animation-timing);
}

.nav-toggle:hover {
    background: var(--bg-elevated);
}

.nav-toggle:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--animation-duration-base) var(--animation-timing);
    border-radius: 1px;
    transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Loading Components */
.skeleton {
    background: linear-gradient(90deg, 
        var(--bg-secondary) 0px, 
        var(--bg-tertiary) 40px, 
        var(--bg-secondary) 80px);
    background-size: 200px 100%;
    animation: shimmer 1.5s linear infinite;
    border-radius: var(--border-radius-sm);
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--spacing-sm);
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: var(--spacing-md);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

/* Utility Components */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.gradient-border {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    background: var(--gradient-primary);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
}

.text-shimmer {
    background: linear-gradient(90deg, 
        var(--text-secondary) 0%, 
        var(--text-primary) 50%, 
        var(--text-secondary) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 2s ease-in-out infinite;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .logo {
        height: 48px;
        max-width: 180px;
    }
    
    .footer-logo {
        height: 56px;
        max-width: 220px;
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .feature-icon {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-xl);
    }
    
    .ai-showcase {
        width: 200px;
        height: 200px;
    }
    
    .ai-logo {
        font-size: var(--font-size-6xl);
    }
    
    .stat {
        padding: var(--spacing-lg);
        min-height: 100px;
    }
    
    .stat h3 {
        font-size: var(--font-size-2xl);
    }
    
    .stat p {
        font-size: var(--font-size-sm);
    }
    
    .btn-primary,
    .btn-secondary {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-sm);
        min-height: 36px;
        letter-spacing: 0.02em;
    }
}

@media (max-width: 480px) {
    .footer-logo {
        height: 48px;
        max-width: 180px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 34px;
        letter-spacing: 0.02em;
        font-weight: 500;
    }
}