/* Enhanced Features CSS */

/* Hero Section Enhancements */
.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent-primary);
    margin: 1rem 0 0.5rem 0;
    letter-spacing: 1px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero-subtitle {
        font-size: 1.2rem;
        margin: 0.75rem 0 0.5rem 0;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.back-to-top:hover {
    background: var(--accent-secondary);
    transform: translateY(0);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Enhanced Project Cards */
.project-card {
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card:hover {
    text-decoration: none;
    color: inherit;
}

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

.project-link-wrapper {
    margin-top: 1rem;
}

.project-link {
    color: var(--accent-primary);
    font-weight: 600;
    transition: color 0.3s ease;
}

.project-metric {
    font-size: 0.9rem;
    color: var(--accent-tertiary);
    font-style: italic;
    margin: 0.5rem 0;
    padding: 0.25rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Navigation Active States */
.nav-link.active {
    color: var(--accent-primary);
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-primary);
}

/* Focus States for Accessibility */
.focused {
    outline: 2px solid var(--accent-primary) !important;
    outline-offset: 2px !important;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Skills Tab Enhancements */
.skill-tab {
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    position: relative;
}

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

.skill-tab[aria-selected="true"] {
    background: var(--accent-primary);
    color: white;
}

/* Enhanced Blog Cards */
.blog-card {
    transition: transform 0.3s ease;
}

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

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--accent-secondary);
}

/* Form Enhancements */
.contact-content.centered {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content.centered .contact-form {
    width: 100%;
    max-width: 500px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

/* Mobile Responsive Enhancements */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
    
    .contact-content.centered {
        padding: 0 1rem;
    }
    
    .contact-content.centered .contact-form {
        max-width: 100%;
    }
}

/* Performance optimizations */
.project-card,
.blog-card,
.skill-card {
    will-change: transform;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .back-to-top {
        transition: opacity 0.3s ease;
    }
}