/* ==========================================================================
   Global Styles
   ========================================================================== */
:root {
    --primary-blue: #00BFFF;
    --primary-purple: #8A2BE2;
    --accent-gold: #FFD700;
    --gradient-primary: linear-gradient(135deg, #00BFFF, #8A2BE2);
    --gradient-gold: linear-gradient(135deg, #FFD700, #FF6B35);
    --dark-bg: #0a0a0f;
    --dark-surface: #1a1a2e;
    --text-light: #ffffff;
    --text-muted: #b8b8d1;
    --neon-blue: #00D4FF;
    --neon-purple: #8B5CF6;
    --neon-cyan: #06FFA5;
    --dark-bg: #0A0A0F;
    --dark-card: #1A1A2E;
    --tech-gray: #16213E;
}

/* Light Mode */
body.light-mode {
    --primary-blue: #2563EB;
    --primary-purple: #7C3AED;
    --accent-gold: #F59E0B;
    --gradient-primary: linear-gradient(135deg, #2563EB, #7C3AED);
    --gradient-gold: linear-gradient(135deg, #F59E0B, #EC4899);
    --dark-bg: #F3F4F6;
    --dark-surface: #FFFFFF;
    --text-light: #1F2937;
    --text-muted: #6B7280;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text-light);
    overflow-x: hidden;
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

/* ==========================================================================
   Particles Background
   ========================================================================== */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes glow {
    from {
        filter: drop-shadow(0 0 5px rgba(0, 191, 255, 0.5));
    }
    to {
        filter: drop-shadow(0 0 15px rgba(138, 43, 226, 0.8));
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes titleGlow {
    from {
        filter: drop-shadow(0 0 10px rgba(0, 191, 255, 0.5));
    }
    to {
        filter: drop-shadow(0 0 30px rgba(138, 43, 226, 0.8));
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(5deg);
    }
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 30px));
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes glowSequence {
    0%, 100% {
        color: var(--primary-blue);
        box-shadow: 0 0 5px rgba(255, 215, 0, 0.3);
        transform: scale(1);
    }
    50% {
        color: var(--accent-gold);
        box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        transform: scale(1.05);
    }
}

/* Soft Skills Section */
.soft-skills-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.radar-chart-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#radarChart {
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 26, 46, 0.8) 0%, rgba(10, 10, 15, 0.9) 100%);
    box-shadow: 0 0 50px rgba(0, 191, 255, 0.2);
}

body.light-mode #radarChart {
    background: radial-gradient(circle, rgba(255, 255, 255, 0.95) 0%, rgba(243, 244, 246, 0.98) 100%);
    box-shadow: 0 0 50px rgba(37, 99, 235, 0.15);
    border: 2px solid #E5E7EB;
}

.chart-legend {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 20px;
    height: 4px;
    border-radius: 2px;
}

/* Glowing Orbs */
.glowing-orbs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    position: relative;
}

.orb-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.skill-orb {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-surface);
    border: 2px solid rgba(255, 255, 255, 0.1);
    animation: orbFloat 4s ease-in-out infinite;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

.skill-orb:hover {
    transform: scale(1.2) translateY(-10px);
    animation-play-state: paused;
}

.orb-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    opacity: 0.7;
    animation: pulse 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
}

.orb-blue { background: radial-gradient(circle, var(--neon-blue), transparent 70%); }
.orb-purple { background: radial-gradient(circle, var(--neon-purple), transparent 70%); }
.orb-gold { background: radial-gradient(circle, var(--accent-gold), transparent 70%); }
.orb-cyan { background: radial-gradient(circle, #00FFFF, transparent 70%); }
.orb-pink { background: radial-gradient(circle, #FF69B4, transparent 70%); }
.orb-green { background: radial-gradient(circle, #00FF7F, transparent 70%); }

.orb-content {
    font-size: 2.5rem;
    z-index: 2;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

.skill-tooltip {
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-surface);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid var(--neon-blue);
    min-width: 200px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.skill-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--neon-blue);
}

.orb-container:hover .skill-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-10px);
}

.skill-tooltip h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--neon-blue);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.skill-tooltip p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.skill-3d-icon {
    font-size: 2rem;
    margin-top: 0.5rem;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.5)) 
            drop-shadow(0 0 10px var(--neon-blue));
    transform: perspective(100px) rotateX(15deg) rotateY(-10deg);
    animation: icon3D 3s ease-in-out infinite;
}

@keyframes icon3D {
    0%, 100% { 
        transform: perspective(100px) rotateX(15deg) rotateY(-10deg) translateZ(0px);
    }
    50% { 
        transform: perspective(100px) rotateX(20deg) rotateY(10deg) translateZ(5px);
    }
}

/* ==========================================================================
   Highlight Styles
   ========================================================================== */
.highlight {
    font-weight: 600;
    color: var(--primary-blue);
    background: linear-gradient(135deg, rgba(0, 191, 255, 0.2), rgba(138, 43, 226, 0.2));
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.highlight:hover {
    color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    transform: scale(1.05);
}

.hero .highlight {
    animation: glowSequence 2s ease-in-out infinite;
}

.hero .tagline .highlight:nth-child(1) {
    animation-delay: 0s;
}

.hero .tagline .highlight:nth-child(2) {
    animation-delay: 0.4s;
}

.hero .tagline .highlight:nth-child(3) {
    animation-delay: 0.8s;
}

.hero .subtitle .highlight:nth-child(1) {
    animation-delay: 1.2s;
}

.hero .subtitle .highlight:nth-child(2) {
    animation-delay: 1.6s;
}

.hero .subtitle .highlight:nth-child(3) {
    animation-delay: 2.0s;
}

.hero .additional .highlight:nth-child(1) {
    animation-delay: 2.4s;
}

.hero .additional .highlight:nth-child(2) {
    animation-delay: 2.8s;
}

/* ==========================================================================
   Navbar Styles
   ========================================================================== */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

body.light-mode .navbar {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 2px solid #E5E7EB;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background: rgba(10, 10, 15, 0.98);
}

body.light-mode .navbar.scrolled {
    background: rgba(255, 255, 255, 0.99);
    border-bottom: 2px solid #D1D5DB;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(0, 191, 255, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

body.light-mode .logo {
    background: linear-gradient(135deg, #2563EB, #7C3AED);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    animation: none;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

body.light-mode .nav-links a {
    color: #374151;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-blue);
    text-shadow: 0 0 10px rgba(0, 191, 255, 0.8);
}

body.light-mode .nav-links a:hover,
body.light-mode .nav-links a.active {
    color: var(--primary-blue);
    text-shadow: none;
    font-weight: 700;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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


.theme-toggle {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.light-mode .theme-toggle {
    color: #F59E0B;
}

.theme-toggle:hover {
    color: var(--primary-blue);
    transform: rotate(20deg);
    text-shadow: 0 0 10px rgba(0, 191, 255, 0.5);
}

.theme-toggle i {
    transition: transform 0.3s ease;
}







.dark-mode-toggle {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.dark-mode-toggle:hover {
    color: var(--accent-gold);
    transform: rotate(180deg);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: radial-gradient(ellipse at center, rgba(0, 191, 255, 0.1) 0%, transparent 70%);
}

.hero-content {
    max-width: 800px;
    padding: 0 2rem;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgb(158, 135, 180);
    margin: 2rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.avatar:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 0 50px rgba(0, 191, 255, 0.8);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--gradient-gold);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

/* ==========================================================================
   Scrolling Container
   ========================================================================== */
.scrolling-container {
    width: 100%;
    overflow: hidden;
    background: rgba(0, 191, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px 0;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    border: 1px solid var(--primary-blue);
}

body.light-mode .scrolling-container {
    background: rgba(37, 99, 235, 0.05);
    border: 2px solid #DBEAFE;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.scrolling-row {
    display: flex;
    gap: 30px;
    width: fit-content;
    animation: scroll 40s linear infinite;
}

.scrolling-row:hover {
    animation-play-state: paused;
}

.icon-item {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

body.light-mode .icon-item {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.icon-item:hover {
    transform: translateY(-10px) scale(1.1);
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    animation-play-state: paused;
}

body.light-mode .icon-item:hover {
    background: #FFFFFF;
    border-color: var(--primary-blue);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.15);
}

.icon-item img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* ==========================================================================
   Timeline Styles
   ========================================================================== */
.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: linear-gradient(45deg, var(--neon-blue), var(--neon-purple));
    border-radius: 50%;
    border: 3px solid var(--dark-bg);
    z-index: 10;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.achievement-dot {
    width: 20px;
    height: 20px;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.6);
}

.timeline-card {
    transition: all 0.3s ease;
    position: relative;
}

.timeline-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 212, 255, 0.2);
}

body.light-mode .timeline-card:hover {
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.15);
}

.achievement-card {
    background: rgba(26, 26, 46, 0.9);
    border: 2px solid rgba(255, 215, 0, 0.3);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.1);
}

body.light-mode .achievement-card {
    background: #FFFBEB;
    border: 2px solid #FDE68A;
    box-shadow: 0 4px 6px rgba(245, 158, 11, 0.1);
}

/* Fix text trong timeline/achievement cards khi light mode */
body.light-mode .achievement-card h3,
body.light-mode .timeline-card h3 {
    color: #111827 !important;
    font-weight: 700;
}

body.light-mode .achievement-card .text-gray-300,
body.light-mode .timeline-card .text-gray-300 {
    color: #374151 !important;
    font-weight: 500;
}

body.light-mode .achievement-card .text-gray-400,
body.light-mode .timeline-card .text-gray-400 {
    color: #4B5563 !important;
    font-weight: 500;
}

body.light-mode .achievement-card p,
body.light-mode .timeline-card p {
    color: #374151;
    font-weight: 500;
}

/* Giữ màu đặc biệt cho tiêu đề thành tích */
body.light-mode .achievement-card .text-blue-400 {
    color: #2563EB !important;
    font-weight: 700;
}

body.light-mode .achievement-card .text-yellow-400 {
    color: #D97706 !important;
    font-weight: 700;
}

.achievement-card:hover {
    border-color: #FFD700;
    box-shadow: 0 15px 35px rgba(255, 215, 0, 0.3);
}

body.light-mode .achievement-card:hover {
    border-color: var(--accent-gold);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.2);
}

.timeline-progress {
    transition: height 0.5s ease;
}

.timeline-item {
    opacity: 0;
}

.timeline-item.animate__zoomIn {
    opacity: 1;
}

.timeline-year {
    position: relative;
    z-index: 20;
}

.timeline-item,
.timeline-year,
.timeline-end {
    opacity: 0;
}

.timeline-item.animate__fadeIn,
.timeline-year.animate__fadeIn,
.timeline-end.animate__fadeIn {
    opacity: 1;
}

/* ==========================================================================
   Card Styles (General, Neon, Certificate, Experience, Blog, Project)
   ========================================================================== */
.neon-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

body.light-mode .neon-card {
    background: #FFFFFF;
    border: 2px solid #DBEAFE;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.neon-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
    border-color: var(--neon-blue);
}

body.light-mode .neon-card:hover {
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-blue);
}

.cert-card {
    transform-style: preserve-3d;
    transition: transform 0.6s;
}

.cert-card:hover {
    transform: rotateX(10deg) rotateY(10deg) scale(1.05);
}

.experience-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.light-mode .experience-card {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.experience-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(138, 43, 226, 0.2);
    border-color: var(--primary-purple);
}

body.light-mode .experience-card:hover {
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-blue);
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.experience-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

body.light-mode .experience-card h3 {
    color: #111827;
    font-weight: 700;
}

.experience-card .company {
    font-size: 1.1rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

body.light-mode .experience-card .company {
    color: var(--primary-blue);
    font-weight: 600;
}

.experience-card .duration {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

body.light-mode .experience-card .duration {
    color: #6B7280;
    font-weight: 500;
}

.experience-card ul {
    list-style: disc;
    padding-left: 1.5rem;
    color: var(--text-muted);
}

body.light-mode .experience-card ul {
    color: #4B5563;
}

.experience-card ul li {
    margin-bottom: 0.5rem;
}

body.light-mode .experience-card ul li {
    color: #4B5563;
    font-weight: 500;
}

.certificate-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.light-mode .certificate-card {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.certificate-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(138, 43, 226, 0.2);
    border-color: var(--primary-purple);
}

body.light-mode .certificate-card:hover {
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.2);
    border-color: var(--primary-purple);
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.certificate-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

body.light-mode .certificate-card h3 {
    color: #111827;
    font-weight: 700;
}

.certificate-card .issuer {
    font-size: 1.1rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

body.light-mode .certificate-card .issuer {
    color: var(--primary-blue);
    font-weight: 600;
}

.certificate-card .date {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

body.light-mode .certificate-card .date {
    color: #6B7280;
    font-weight: 500;
}

.blog-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

body.light-mode .blog-card {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 191, 255, 0.2);
    border-color: var(--primary-blue);
}

body.light-mode .blog-card:hover {
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-blue);
}

.blog-card-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.blog-card-image::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;
}

.blog-card:hover .blog-card-image::before {
    left: 100%;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.blog-card p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.read-more {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--accent-gold);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.8);
}

.project-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.light-mode .project-card {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(138, 43, 226, 0.2);
    border-color: var(--primary-purple);
}

body.light-mode .project-card:hover {
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-blue);
}

.project-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    display: block;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.tech-stack {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 1rem 0;
}

.tech-tag {
    background: rgba(0, 191, 255, 0.2);
    color: var(--primary-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */
.section {
    padding: 5rem 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

.section-title {
    margin-bottom: 1rem;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-muted);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

body.light-mode .skill-item {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.skill-item:hover {
    background: rgba(0, 191, 255, 0.1);
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 191, 255, 0.2);
}

body.light-mode .skill-item:hover {
    background: rgba(37, 99, 235, 0.05);
    border-color: var(--primary-blue);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.15);
}

.skill-item i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    display: block;
}

/* ==========================================================================
   Grid Layouts (Experience, Certificates, Blog, Projects)
   ========================================================================== */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.py-20 {
    padding: 5rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.text-center {
    text-align: center;
}

.mb-16 {
    margin-bottom: 4rem;
}

.text-3xl {
    font-size: 1.875rem;
}

.md\:text-4xl {
    @media (min-width: 768px) {
        font-size: 2.25rem;
    }
}

.font-bold {
    font-weight: 700;
}

.mb-4 {
    margin-bottom: 1rem;
}

.w-24 {
    width: 6rem;
}

.h-1 {
    height: 0.25rem;
}

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

.mt-4 {
    margin-top: 1rem;
}

.max-w-2xl {
    max-width: 42rem;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.md\:flex-row {
    @media (min-width: 768px) {
        flex-direction: row;
    }
}

.gap-10 {
    gap: 2.5rem;
}

.md\:w-1\/2 {
    @media (min-width: 768px) {
        width: 50%;
    }
}

.rounded-xl {
    border-radius: 0.75rem;
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body.light-mode .shadow-lg,
body.light-mode .rounded-xl {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.p-8 {
    padding: 2rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.space-y-6>*+* {
    margin-top: 1.5rem;
}

.text-sm {
    font-size: 0.875rem;
}

.font-medium {
    font-weight: 500;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.w-full {
    width: 100%;
}

.py-3 {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.border {
    border-width: 1px;
}

.rounded-lg {
    border-radius: 0.5rem;
}

/* Form inputs */
input[type="text"],
input[type="email"],
textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

body.light-mode input[type="text"],
body.light-mode input[type="email"],
body.light-mode textarea {
    border: 2px solid #D1D5DB !important;
    background: #fff;
    color: #1F2937;
    transition: border-color 0.3s cubic-bezier(.4,0,.2,1);
}

body.light-mode input[type="text"]:focus,
body.light-mode input[type="email"]:focus,
body.light-mode textarea:focus {
    border-color: #2563EB !important;
    box-shadow: 0 0 0 2px #2563EB22;
}

body.light-mode label {
    color: #374151;
}

.focus\:ring-2:focus {
    --tw-ring-offset-width: 2px;
    box-shadow: 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-color);
}

.focus\:ring-primary:focus {
    --tw-ring-color: var(--primary-blue);
}

.focus\:border-primary:focus {
    border-color: var(--primary-blue);
}

.transition {
    transition-property: all;
    transition-duration: 0.3s;
    transition-timing-function: ease;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
}

body.light-mode .btn-primary {
    background: linear-gradient(135deg, #2563EB, #7C3AED);
    color: #FFFFFF;
    font-weight: 700;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.15);
}

body.light-mode .btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #6d28d9);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.25);
    transform: translateY(-2px);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 191, 255, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
}

.h-full {
    height: 100%;
}

.items-start {
    align-items: flex-start;
}

.w-12 {
    width: 3rem;
}

.h-12 {
    height: 3rem;
}

.rounded-full {
    border-radius: 9999px;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.mr-4 {
    margin-right: 1rem;
}

.shrink-0 {
    flex-shrink: 0;
}

.text-primary {
    color: var(--primary-blue);
}

.hover\:text-primary:hover {
    color: var(--primary-blue);
}

.mt-10 {
    margin-top: 2.5rem;
}

.space-x-4>*+* {
    margin-left: 1rem;
}

.social-icon {
    transition: all 0.3s ease;
}

.w-10 {
    width: 2.5rem;
}

.h-10 {
    height: 2.5rem;
}

.p-6 {
    padding: 1.5rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.space-y-2>*+* {
    margin-top: 0.5rem;
}

.justify-between {
    justify-content: space-between;
}

#contact {
    background: var(--dark-bg);
}

#contact .container {
    background: var(--dark-surface);
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

#contact .text-gray-600 {
    color: var(--text-muted);
}

form input,
form textarea {
    font-family: 'Inter', sans-serif;
}

#contact .bg-white {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#contact .bg-blue-100 {
    background: rgba(0, 191, 255, 0.1);
}

#contact .bg-gray-100 {
    background: rgba(255, 255, 255, 0.1);
}

#contact .bg-gray-50 {
    background: rgba(255, 255, 255, 0.05);
}

#contact .border-gray-300 {
    border-color: rgba(255, 255, 255, 0.2);
}

#contact .border-gray-200 {
    border-color: rgba(255, 255, 255, 0.15);
}

#contact .text-gray-700 {
    color: var(--text-light);
}

#contact input,
#contact textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-light);
}

#contact input:focus,
#contact textarea:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 20px rgba(0, 191, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
}

#contact .social-icon:hover {
    background: var(--primary-blue);
    color: var(--text-light);
    box-shadow: 0 0 15px rgba(0, 191, 255, 0.5);
}

#contact .social-icon[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10;
}

#contact .social-icon:hover::after {
    opacity: 1;
    visibility: visible;
}

.flex .items-start a {
    text-decoration: none;
}

/* ==========================================================================
   Footer Styles
   ========================================================================== */
.footer {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1rem;
    text-align: center;
}

body.light-mode .footer {
    background: rgba(0, 0, 0, 0.02);
    border-top: 2px solid #E5E7EB;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    color: var(--text-muted);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.social-links a:hover {
    color: var(--primary-blue);
    text-shadow: 0 0 15px rgba(0, 191, 255, 0.8);
    transform: translateY(-3px);
}

.social-links a[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10;
}

.social-links a:hover::after {
    opacity: 1;
    visibility: visible;
}

.newsletter {
    max-width: 400px;
    margin: 0 auto 2rem;
    display: flex;
    gap: 1rem;
}

.newsletter input {
    flex: 1;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    color: var(--text-light);
    outline: none;
}

.newsletter button {
    background: var(--gradient-gold);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.newsletter button:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
}

/* ==========================================================================
   Loading Animation
   ========================================================================== */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 191, 255, 0.3);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ==========================================================================
   Animation Classes
   ========================================================================== */
.animate__animated {
    opacity: 0;
}

.animate__animated.animate__zoomIn {
    opacity: 1;
}

/* ==========================================================================
   Ripple Effect
   ========================================================================== */
.ripple {
    position: absolute;
    border-radius: 50%; 
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    .soft-skills-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .radar-chart-container {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #radarChart {
        width: 300px !important;
        height: 300px !important;
    }

    .glowing-orbs {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        max-width: 300px;
        margin: 0 auto;
    }

    .skill-orb {
        width: 80px;
        height: 80px;
    }

    .orb-content {
        font-size: 1.8rem;
    }

    .skill-tooltip {
        min-width: 180px;
        top: -70px;
        font-size: 0.8rem;
    }

    .skill-tooltip h4 {
        font-size: 1rem;
    }

    .skill-tooltip p {
        font-size: 0.8rem;
    }

    .skill-3d-icon {
        font-size: 1.5rem;
    }

    .section {
        padding: 3rem 1rem;
    }

    .experience-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .experience-card {
        padding: 1.5rem;
    }

    .experience-card h3 {
        font-size: 1.3rem;
    }

    .experience-card .company {
        font-size: 1rem;
    }

    .experience-card .duration {
        font-size: 0.85rem;
    }

    .experience-card li {
        font-size: 0.9rem;
    }

    /* Mobile Timeline */
    .timeline-item .flex {
        flex-direction: column;
    }

    .timeline-item .w-1\/2 {
        width: 100%;
        padding: 0;
        text-align: left !important;
        margin-bottom: 1rem;
    }

    .timeline-dot {
        position: relative;
        left: auto;
        transform: none;
        margin: 1rem auto;
    }

    .timeline-card .flex {
        justify-content: center;
    }

    .timeline-card .mr-4 {
        margin: 0;
    }

    /* Scrolling Container */
    .icon-item {
        width: 60px;
        height: 60px;
        margin-right: 20px;
    }

    .icon-item i {
        font-size: 36px;
    }

    /* Navbar */
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }


    /* Hero */
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-content {
        margin-top: 100px;
    }

    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* Grids */
    .skills-grid,
    .certificates-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

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

    /* Contact */
    #contact .md\:w-1\/2 {
        width: 100%;
    }

    /* Newsletter */
    .newsletter {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .glowing-orbs {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 200px;
    }

    .skill-orb {
        width: 100px;
        height: 100px;
    }

    .orb-content {
        font-size: 2rem;
    }

    #radarChart {
        width: 280px !important;
        height: 280px !important;
    }

    .experience-grid {
        gap: 1rem;
    }

    .experience-card {
        padding: 1rem;
    }

    .experience-card h3 {
        font-size: 1.2rem;
    }

    .experience-card .company {
        font-size: 0.95rem;
    }

    .experience-card .duration {
        font-size: 0.8rem;
    }

    .experience-card li {
        font-size: 0.85rem;
    }
}

/* Glowing Orbs Icon Color for Light Mode */
body.light-mode .skill-orb {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

body.light-mode .skill-orb:hover {
    background: #F9FAFB;
    border-color: #2563EB;
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.1);
}

body.light-mode .orb-glow {
    display: none;
}

body.light-mode .skill-orb .orb-content i {
    color: #2563eb;
    transition: color 0.3s cubic-bezier(.4,0,.2,1);
}

body.light-mode .skill-orb .orb-blue i { 
    color: #2563EB;
}
body.light-mode .skill-orb .orb-purple i { 
    color: #7C3AED;
}
body.light-mode .skill-orb .orb-gold i { 
    color: #D97706;
}
body.light-mode .skill-orb .orb-cyan i { 
    color: #0891B2;
}
body.light-mode .skill-orb .orb-pink i { 
    color: #DB2777;
}
body.light-mode .skill-orb .orb-green i { 
    color: #059669;
}

body.light-mode .skill-tooltip {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

body.light-mode .skill-tooltip::after {
    border-top-color: #FFFFFF;
}

body.light-mode .skill-tooltip h4 {
    color: #2563EB;
}

body.light-mode .skill-tooltip p {
    color: #6B7280;
}

body.light-mode .skill-tooltip .skill-3d-icon i {
    transition: color 0.3s cubic-bezier(.4,0,.2,1);
}

body.light-mode .skill-tooltip .skill-3d-icon .fa-comment-alt { 
    color: #2563EB;
}
body.light-mode .skill-tooltip .skill-3d-icon .fa-calendar-check { 
    color: #7C3AED;
}
body.light-mode .skill-tooltip .skill-3d-icon .fa-user-friends { 
    color: #D97706;
}
body.light-mode .skill-tooltip .skill-3d-icon .fa-bullseye { 
    color: #0891B2;
}
body.light-mode .skill-tooltip .skill-3d-icon .fa-rocket { 
    color: #DB2777;
}
body.light-mode .skill-tooltip .skill-3d-icon .fa-star { 
    color: #059669;
}

/* Smooth transition for orb and icon */
.skill-orb .orb-content i,
.skill-tooltip .skill-3d-icon i {
    transition: color 0.3s cubic-bezier(.4,0,.2,1);
}