/* Modern UI Enhancements for Koza Personal Site */

/* Smooth Animations */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Enhanced Navbar with Glassmorphism */
.navbar {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-brand {
    font-weight: 800;
    font-size: 1.6rem;
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-links a {
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-login-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none !important;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.nav-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* Hero Section Enhancements */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -2px;
}

.glitch {
    position: relative;
    animation: glitch-skew 3s infinite;
}

@keyframes glitch-skew {
    0% { transform: skew(0deg); }
    97% { transform: skew(0deg); }
    98% { transform: skew(2deg); }
    99% { transform: skew(-2deg); }
    100% { transform: skew(0deg); }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-3px);
}

/* Enhanced Cards */
.recent-post-card,
.project-card-github {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(30, 41, 59, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.recent-post-card:hover,
.project-card-github:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3);
}

.project-card-github.featured {
    border: 2px solid var(--accent);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.2);
}

/* Section Titles with Gradient */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    border-radius: 2px;
}

/* Discord Section Enhancement */
.discord-card {
    background: linear-gradient(135deg, rgba(88, 101, 242, 0.1), rgba(114, 137, 218, 0.1));
    border: 2px solid rgba(88, 101, 242, 0.3);
    border-radius: 20px;
    padding: 2.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    transition: all 0.3s ease;
}

.discord-card:hover {
    border-color: #5865f2;
    box-shadow: 0 10px 40px rgba(88, 101, 242, 0.3);
    transform: translateY(-4px);
}

.discord-avatar {
    position: relative;
}

.discord-avatar img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.status-indicator {
    position: absolute;
    bottom: 5px;
    right: 5px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 4px solid var(--bg-dark);
    animation: pulse-status 2s ease-in-out infinite;
}

@keyframes pulse-status {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.status-online { background: #3ba55d; }
.status-idle { background: #faa81a; }
.status-dnd { background: #ed4245; }
.status-offline { background: #747f8d; }

/* Projects Grid Modern Layout */
.projects-grid-github {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-thumbnail {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.project-thumbnail::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.8) 100%);
}

.project-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card-github:hover .project-thumbnail img {
    transform: scale(1.1);
}

/* Featured Badge */
.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--accent), #059669);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

/* Tags Styling */
.tag {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--primary-color);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(99, 102, 241, 0.25);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Category Badge */
.category-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Action Buttons */
.action-btn {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--primary-color);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.download-btn {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent);
}

.download-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* Filter Buttons */
.filter-btn {
    background: rgba(99, 102, 241, 0.05);
    border: 2px solid rgba(99, 102, 241, 0.2);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

/* Search Input Enhancement */
.search-input {
    padding: 0.875rem 1.5rem;
    background: rgba(30, 41, 59, 0.6);
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    width: 100%;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: rgba(30, 41, 59, 0.8);
}

.search-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

/* Social Links Enhancement */
.social-link {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid rgba(99, 102, 241, 0.3);
    padding: 1.2rem 2rem;
    border-radius: 16px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.social-link i {
    font-size: 1.5rem;
}

/* Footer Enhancement */
.footer {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 2rem 0;
    margin-top: 4rem;
}

/* Scroll to top animation */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.loading {
    animation: shimmer 2s infinite;
    background: linear-gradient(90deg,
        rgba(99, 102, 241, 0.1) 0%,
        rgba(99, 102, 241, 0.3) 50%,
        rgba(99, 102, 241, 0.1) 100%);
    background-size: 1000px 100%;
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .projects-grid-github {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }

    .discord-card {
        flex-direction: column;
        text-align: center;
    }
}

/* Accessibility */
.btn:focus,
.nav-links a:focus,
.action-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Performance - Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}