/* Import all base styles from index.css */
@import url('index.css');

/* Enhanced Certifications Page Styles */

/* Animated Background Enhancements */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(ellipse at center, rgba(108, 92, 231, 0.08) 0%, transparent 50%);
}

[data-theme="dark"] .animated-bg {
    background: radial-gradient(ellipse at center, rgba(108, 92, 231, 0.15) 0%, rgba(0, 0, 0, 0.3) 100%);
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float-advanced 20s ease-in-out infinite;
    background: var(--primary-color);
    filter: blur(2px);
}

[data-theme="dark"] .shape {
    opacity: 0.2;
    filter: blur(3px);
}

.shape-1 {
    width: 120px;
    height: 120px;
    background: var(--gradient-primary);
    top: 15%;
    left: 10%;
    animation: float-advanced 25s ease-in-out infinite, morph-shape 12s ease-in-out infinite;
}

.shape-2 {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    top: 70%;
    right: 15%;
    animation: float-advanced 20s ease-in-out infinite reverse, scale-pulse-gentle 8s ease-in-out infinite;
    animation-delay: -3s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    background: var(--gradient-accent);
    bottom: 25%;
    left: 25%;
    animation: float-advanced 30s ease-in-out infinite, rotate-slow 40s linear infinite;
    animation-delay: -6s;
}

.shape-4 {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    top: 40%;
    right: 30%;
    animation: float-advanced 15s ease-in-out infinite, bounce-gentle 6s ease-in-out infinite;
    animation-delay: -9s;
}

.shape-5 {
    width: 140px;
    height: 140px;
    background: var(--gradient-secondary);
    bottom: 10%;
    right: 10%;
    animation: float-advanced 35s ease-in-out infinite, morph-shape 15s ease-in-out infinite;
    animation-delay: -12s;
}

.shape-6 {
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    top: 20%;
    left: 60%;
    animation: float-advanced 18s ease-in-out infinite, wiggle 4s ease-in-out infinite;
    animation-delay: -15s;
}

/* Particle System */
.particle-system {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particle-float 20s linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: -2s; }
.particle:nth-child(3) { left: 30%; animation-delay: -4s; }
.particle:nth-child(4) { left: 40%; animation-delay: -6s; }
.particle:nth-child(5) { left: 50%; animation-delay: -8s; }
.particle:nth-child(6) { left: 60%; animation-delay: -10s; }
.particle:nth-child(7) { left: 70%; animation-delay: -12s; }
.particle:nth-child(8) { left: 80%; animation-delay: -14s; }
.particle:nth-child(9) { left: 90%; animation-delay: -16s; }
.particle:nth-child(10) { left: 95%; animation-delay: -18s; }

@keyframes float-advanced {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg) scale(1); }
    25% { transform: translateY(-30px) translateX(20px) rotate(90deg) scale(1.1); }
    50% { transform: translateY(-60px) translateX(-10px) rotate(180deg) scale(0.9); }
    75% { transform: translateY(-30px) translateX(-20px) rotate(270deg) scale(1.05); }
}

@keyframes morph-shape {
    0%, 100% { border-radius: 50%; }
    25% { border-radius: 20% 80% 40% 60%; }
    50% { border-radius: 80% 20% 60% 40%; }
    75% { border-radius: 40% 60% 20% 80%; }
}

@keyframes scale-pulse-gentle {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(5deg); }
    75% { transform: rotate(-5deg); }
}

@keyframes particle-float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

/* Page Title Section */
.page-title {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 140px 20px 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.05;
    z-index: -1;
    animation: gradient-shift 5s ease-in-out infinite alternate;
}

.title-content {
    max-width: 800px;
    margin: 0 auto;
}

.title-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    animation: icon-pulse 3s ease-in-out infinite, icon-rotate 20s linear infinite;
    box-shadow: 0 20px 40px rgba(108, 92, 231, 0.3);
}

.page-title h2 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    margin-bottom: 2rem;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    animation: title-glow 3s ease-in-out infinite alternate;
}

.page-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 5px;
    background: var(--gradient-primary);
    border-radius: 3px;
    animation: underline-expand 2s ease-in-out infinite alternate;
}

.page-title p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    animation: text-fade-in 1s ease-out 0.5s both;
}

.achievement-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    animation: number-count 2s ease-out;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 2px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--border-color), transparent);
    animation: divider-glow 2s ease-in-out infinite alternate;
}

@keyframes icon-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 20px 40px rgba(108, 92, 231, 0.3); }
    50% { transform: scale(1.1); box-shadow: 0 25px 50px rgba(108, 92, 231, 0.5); }
}

@keyframes icon-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes title-glow {
    0% { filter: brightness(1); }
    100% { filter: brightness(1.2) drop-shadow(0 0 20px rgba(108, 92, 231, 0.5)); }
}

@keyframes underline-expand {
    0% { width: 120px; }
    100% { width: 180px; }
}

@keyframes number-count {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes divider-glow {
    0% { opacity: 0.5; }
    100% { opacity: 1; box-shadow: 0 0 10px var(--primary-color); }
}

/* Certifications Section */
.certifications {
    padding: 100px 20px;
    background: var(--bg-primary);
    position: relative;
}

.certifications-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Filter Buttons */
.certification-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 60px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 50px;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.filter-btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.filter-btn .filter-count {
    background: var(--gradient-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left 0.4s ease;
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(108, 92, 231, 0.3);
}

.filter-btn:hover i,
.filter-btn.active i {
    transform: scale(1.2) rotate(10deg);
}

.filter-btn.active .filter-count {
    background: rgba(255, 255, 255, 0.2);
}

/* Certifications Grid */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

/* Certification Card */
.certification-card {
    height: 500px;
    perspective: 1000px;
    position: relative;
    transition: all 0.4s ease;
}

.certification-card:hover {
    transform: translateY(-10px);
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.certification-card:hover .card-inner {
    transform: rotateY(180deg);
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
    background: var(--card-bg);
}

.card-back {
    transform: rotateY(180deg);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Certification Badge */
.certification-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    color: white;
    font-size: 1.5rem;
    animation: badge-float 3s ease-in-out infinite;
}

.certification-badge {
    background: var(--gradient-primary);
}

.certification-badge.harvard {
    background: linear-gradient(135deg, #8B0000, #DC143C);
}

.certification-badge.data-science {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
}

.certification-badge.web {
    background: linear-gradient(135deg, #00D4AA, #00A8E8);
}

.certification-badge.game {
    background: linear-gradient(135deg, #6A0572, #AB83A1);
}

.certification-badge.microsoft {
    background: linear-gradient(135deg, #00BCF2, #0078D4);
}

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

/* Certification Logo */
.certification-logo {
    position: relative;
    height: 250px;
    overflow: hidden;
    border-radius: 25px 25px 0 0;
}

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

.certification-card:hover .certification-logo img {
    transform: scale(1.1);
}

.logo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.7) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.certification-card:hover .logo-overlay {
    opacity: 1;
}

/* Certification Content */
.certification-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.certification-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.certification-issuer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.certification-issuer i {
    color: var(--primary-color);
}

.certification-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.tag {
    background: var(--gradient-primary);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    animation: tag-glow 2s ease-in-out infinite alternate;
}

.tag:nth-child(2) { animation-delay: 0.2s; }
.tag:nth-child(3) { animation-delay: 0.4s; }

@keyframes tag-glow {
    0% { box-shadow: 0 2px 5px rgba(108, 92, 231, 0.3); }
    100% { box-shadow: 0 4px 15px rgba(108, 92, 231, 0.5); }
}

/* Card Back Content */
.back-content {
    color: var(--text-primary);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.back-content h4 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.back-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.skills-covered h5 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.skills-covered ul {
    list-style: none;
    padding: 0;
    margin-bottom: 25px;
}

.skills-covered li {
    padding: 5px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.skills-covered li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.view-cert-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    align-self: center;
}

.view-cert-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(108, 92, 231, 0.4);
}

/* Load More Section */
.load-more-section {
    text-align: center;
    margin-top: 60px;
}

.load-more-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.load-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

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

.load-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(108, 92, 231, 0.4);
}

.load-more-btn i {
    transition: transform 0.3s ease;
}

.load-more-btn:hover i {
    transform: translateY(3px);
}

.load-more-text {
    margin-top: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Certification Stats Section */
.cert-stats-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-top: 1px solid var(--border-color);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.stats-container h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.stat-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
    border-color: var(--primary-color);
}

.stat-card .stat-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    animation: stat-icon-pulse 3s ease-in-out infinite;
}

.stat-card .stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    margin-bottom: 10px;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Responsive Design */
@media (max-width: 1200px) {
    .certifications-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-title {
        padding: 120px 15px 60px;
        min-height: 70vh;
    }

    .page-title h2 {
        font-size: 2.5rem;
    }

    .achievement-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-divider {
        width: 60px;
        height: 2px;
        transform: rotate(90deg);
    }

    .certification-filters {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        min-width: 200px;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .certification-card {
        height: 450px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .page-title h2 {
        font-size: 2rem;
    }

    .title-icon {
        width: 80px;
        height: 80px;
        font-size: 2.5rem;
    }

    .certification-card {
        height: 400px;
    }

    .certification-logo {
        height: 200px;
    }

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

    .stat-card {
        padding: 30px 20px;
    }
}

/* Dark mode enhancements */
[data-theme="dark"] .certification-card {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .certification-card:hover {
    box-shadow: var(--hover-shadow), 0 0 30px rgba(162, 155, 254, 0.2);
}

[data-theme="dark"] .filter-btn {
    background: var(--card-bg);
}

[data-theme="dark"] .stat-card {
    background: var(--card-bg);
}

[data-theme="dark"] .logo-overlay {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.9) 100%);
}

/* Add these animations to the end of your certifications.css file */

/* Animation keyframes for load more functionality */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOutDown {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(30px);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Hidden cards styling */
.certification-card.hidden-card {
    display: none !important;
}

/* Filter transition effects */
.certification-card {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.certification-card.filtering-out {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
}

/* Load more button enhanced animations */
.load-more-btn {
    position: relative;
    overflow: hidden;
}

.load-more-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.load-more-btn:active::after {
    width: 200px;
    height: 200px;
}

/* Enhanced filter button animations */
.filter-btn {
    position: relative;
    overflow: hidden;
}

.filter-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.filter-btn:hover::after {
    left: 100%;
}

/* Card flip animation enhancements */
.certification-card:hover .card-inner {
    transform: rotateY(180deg);
}

.card-inner {
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Smooth transitions for all interactive elements */
.certification-card,
.filter-btn,
.load-more-btn,
.stat-card {
    will-change: transform;
}

/* Performance optimizations */
.certification-card {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Mobile responsiveness for animations */
@media (max-width: 768px) {
    .certification-card:hover .card-inner {
        transform: none; /* Disable flip on mobile for better UX */
    }

    .certification-card {
        cursor: pointer;
    }

    /* Mobile tap to flip */
    .certification-card.mobile-flipped .card-inner {
        transform: rotateY(180deg);
    }
}

/* Add touch support for mobile devices */
@media (hover: none) and (pointer: coarse) {
    .certification-card:hover .card-inner {
        transform: none;
    }
}