/* ========================================
   DESIGN ENHANCEMENTS - Premium Refinements
   ======================================== */

/* Digital Display Screen - Typewriter Effect */
.digital-display {
    margin-bottom: var(--spacing-2xl);
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out;
}

.digital-screen {
    background: linear-gradient(135deg, #0A1628 0%, #1A2332 100%);
    border: 2px solid rgba(37, 99, 235, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-2xl);
    box-shadow: 
        0 0 20px rgba(37, 99, 235, 0.2),
        0 0 40px rgba(37, 99, 235, 0.1),
        inset 0 1px 0 rgba(37, 99, 235, 0.3),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.digital-screen::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            rgba(37, 99, 235, 0.03) 0px,
            transparent 1px,
            transparent 2px,
            rgba(37, 99, 235, 0.03) 3px
        );
    pointer-events: none;
    animation: scanlines 8s linear infinite;
}

@keyframes scanlines {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(4px);
    }
}

.digital-screen::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(10, 22, 40, 0.3) 100%);
    pointer-events: none;
}

.typewriter-text {
    font-family: var(--font-mono);
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: #60A5FA;
    text-shadow: 
        0 0 10px rgba(96, 165, 250, 0.8),
        0 0 20px rgba(96, 165, 250, 0.4),
        0 0 30px rgba(96, 165, 250, 0.2);
    letter-spacing: 0.05em;
    position: relative;
    z-index: 1;
    white-space: nowrap;
}

.cursor-blink {
    font-family: var(--font-mono);
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: 300;
    color: #60A5FA;
    text-shadow: 
        0 0 10px rgba(96, 165, 250, 0.8),
        0 0 20px rgba(96, 165, 250, 0.4);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
    position: relative;
    z-index: 1;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

/* Glowing effect animation */
@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(37, 99, 235, 0.2),
            0 0 40px rgba(37, 99, 235, 0.1),
            inset 0 1px 0 rgba(37, 99, 235, 0.3),
            inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    }
    50% {
        box-shadow: 
            0 0 30px rgba(37, 99, 235, 0.3),
            0 0 60px rgba(37, 99, 235, 0.15),
            inset 0 1px 0 rgba(37, 99, 235, 0.4),
            inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    }
}

.digital-screen {
    animation: glow-pulse 3s ease-in-out infinite;
}

[data-theme="dark"] .digital-screen {
    background: linear-gradient(135deg, #0A1628 0%, #1A2332 100%);
    border-color: rgba(96, 165, 250, 0.4);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .digital-display {
        margin-bottom: var(--spacing-xl);
    }
    
    .digital-screen {
        padding: var(--spacing-md) var(--spacing-lg);
        min-height: 50px;
    }
    
    .typewriter-text,
    .cursor-blink {
        font-size: 1rem;
    }
}

/* Enhanced Hero Section */
.hero {
    padding: clamp(6rem, 12vh, 10rem) 0 clamp(4rem, 8vh, 6rem);
    background: linear-gradient(180deg, #F0F9FF 0%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -25%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle at 30% 20%, rgba(15, 76, 129, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(37, 99, 235, 0.06) 0%, transparent 50%);
    pointer-events: none;
    animation: heroGlow 20s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-10px, -10px) scale(1.05);
        opacity: 0.8;
    }
}

[data-theme="dark"] .hero {
    background: linear-gradient(180deg, #0A1628 0%, #1A2332 100%);
}

[data-theme="dark"] .hero::before {
    background: radial-gradient(circle at 30% 20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(96, 165, 250, 0.1) 0%, transparent 50%);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-900);
}

[data-theme="dark"] .hero-title {
    color: var(--dark-text);
}

.gradient-text {
    background: linear-gradient(135deg, #0F4C81 0%, #2563EB 50%, #60A5FA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.gradient-text::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0F4C81 0%, #2563EB 50%, #60A5FA 100%);
    border-radius: 2px;
    opacity: 0.3;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.7;
    color: var(--gray-600);
    max-width: 42rem;
}

[data-theme="dark"] .hero-description {
    color: var(--dark-text-secondary);
}

/* Enhanced Card Designs */
.category-card,
.blog-card,
.author-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(15, 76, 129, 0.1);
    box-shadow: 0 1px 3px rgba(15, 76, 129, 0.05), 
                0 8px 24px rgba(15, 76, 129, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    cursor: pointer;
}

.category-card::before,
.blog-card::before,
.author-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.15), rgba(37, 99, 235, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover::before,
.blog-card:hover::before,
.author-card:hover::before {
    opacity: 1;
}

.category-card:hover,
.blog-card:hover,
.author-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 4px 12px rgba(15, 76, 129, 0.08), 
                0 16px 48px rgba(15, 76, 129, 0.12);
}

[data-theme="dark"] .category-card,
[data-theme="dark"] .blog-card,
[data-theme="dark"] .author-card {
    background: rgba(26, 35, 50, 0.8);
    border-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 
                0 8px 24px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .category-card:hover,
[data-theme="dark"] .blog-card:hover,
[data-theme="dark"] .author-card:hover {
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15), 
                0 16px 48px rgba(37, 99, 235, 0.2);
}

/* Research Cards Enhancement */
.research-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(15, 76, 129, 0.08);
    box-shadow: 0 4px 16px rgba(15, 76, 129, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0F4C81, #2563EB, #60A5FA);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 32px rgba(15, 76, 129, 0.12),
                0 24px 64px rgba(15, 76, 129, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border-color: rgba(15, 76, 129, 0.15);
}

[data-theme="dark"] .research-card {
    background: linear-gradient(135deg, rgba(26, 35, 50, 0.95) 0%, rgba(42, 52, 65, 0.95) 100%);
    border-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Enhanced Section Backgrounds */
.categories {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 50%, #F0F9FF 100%);
    position: relative;
}

.categories::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(15, 76, 129, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.popular-blogs {
    background: linear-gradient(180deg, #F0F9FF 0%, #EFF6FF 50%, #FFFFFF 100%);
    position: relative;
}

.popular-blogs::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(15, 76, 129, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(37, 99, 235, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

[data-theme="dark"] .categories {
    background: linear-gradient(180deg, #1A2332 0%, #0A1628 50%, #1A2332 100%);
}

[data-theme="dark"] .popular-blogs {
    background: linear-gradient(180deg, #0A1628 0%, #1A2332 50%, #2A3441 100%);
}

/* Community Support Section */
.community-support {
    background: linear-gradient(180deg, #F8FAFC 0%, #EFF6FF 100%);
}

[data-theme="dark"] .community-support {
    background: linear-gradient(180deg, #0A1628 0%, #101C2F 100%);
}

/* Theme Toggle Enhancement */
.theme-toggle {
    position: relative;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(15, 76, 129, 0.1);
    box-shadow: 0 2px 8px rgba(15, 76, 129, 0.05);
}

.theme-toggle:hover {
    background: var(--white);
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(15, 76, 129, 0.12);
    transform: scale(1.05) rotate(5deg);
}

[data-theme="dark"] .theme-toggle {
    background: rgba(26, 35, 50, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .theme-toggle:hover {
    border-color: var(--secondary-blue);
    transform: scale(1.05) rotate(-5deg);
}

/* Enhanced Footer */
.footer {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    border-top: 1px solid rgba(15, 76, 129, 0.08);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 76, 129, 0.2), transparent);
}

[data-theme="dark"] .footer {
    background: linear-gradient(180deg, #1A2332 0%, #0A1628 100%);
    border-top-color: rgba(255, 255, 255, 0.05);
}

/* Enhanced Sidebar */
.sidebar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid rgba(15, 76, 129, 0.1);
    box-shadow: 4px 0 24px rgba(15, 76, 129, 0.08);
}

[data-theme="dark"] .sidebar {
    background: rgba(10, 22, 40, 0.95);
    border-right-color: rgba(255, 255, 255, 0.05);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
}

.sidebar-link {
    border-radius: var(--radius-lg);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-link:hover {
    background: linear-gradient(90deg, rgba(15, 76, 129, 0.08), rgba(37, 99, 235, 0.05));
    border-color: rgba(15, 76, 129, 0.15);
    transform: translateX(4px);
}

/* Improved Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

.section-title {
    font-weight: 800;
    letter-spacing: -0.015em;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Better Spacing and Layout */
.container {
    max-width: 1280px;
    padding-inline: clamp(1rem, 5vw, 2rem);
}

.section-header {
    margin-bottom: clamp(2rem, 5vw, 4rem);
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

/* Explore Page - Fix Navigation Overlap */
.explore-page {
    padding-top: 100px;
}

.explore-page .page-header {
    padding-top: var(--spacing-xl);
}

/* Blog Card Click Handling */
.blog-card,
.blog-list-item {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-card:active,
.blog-list-item:active {
    transform: scale(0.98);
}

/* Enhanced Focus States */
*:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Loading States */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Micro-interactions */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--dark-surface);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--gradient-secondary);
}

/* Print Styles */
@media print {
    .navbar,
    .sidebar,
    .search-overlay,
    .loading-overlay,
    .btn,
    footer {
        display: none !important;
    }
    
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
}