/* ===== CSS RESET & VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Galaxy Color Palette */
    --primary-color: #9d4edd;
    --primary-dark: #7b2cbf;
    --primary-light: #c77dff;
    --secondary-color: #ff006e;
    --accent-color: #00d9ff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #cbd5e1;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f0520;
    --card-bg: rgba(255, 255, 255, 0.95);
    --shadow-sm: 0 2px 8px rgba(157, 78, 221, 0.1);
    --shadow-md: 0 4px 20px rgba(157, 78, 221, 0.15);
    --shadow-lg: 0 10px 40px rgba(157, 78, 221, 0.2);
    --shadow-glow: 0 0 30px rgba(157, 78, 221, 0.5);
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}

/* ===== ANIMATED BACKGROUND ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
    overflow: hidden;
}

/* Starry Sky */
.background-animation::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, white, transparent),
        radial-gradient(2px 2px at 50px 160px, white, transparent),
        radial-gradient(1px 1px at 90px 40px, white, transparent),
        radial-gradient(1px 1px at 130px 80px, white, transparent),
        radial-gradient(2px 2px at 160px 120px, white, transparent),
        radial-gradient(1px 1px at 200px 180px, white, transparent),
        radial-gradient(2px 2px at 240px 60px, white, transparent),
        radial-gradient(1px 1px at 270px 140px, white, transparent),
        radial-gradient(2px 2px at 300px 200px, white, transparent),
        radial-gradient(1px 1px at 330px 90px, white, transparent),
        radial-gradient(1px 1px at 20px 200px, white, transparent),
        radial-gradient(2px 2px at 60px 240px, white, transparent),
        radial-gradient(1px 1px at 100px 280px, white, transparent),
        radial-gradient(2px 2px at 140px 220px, white, transparent),
        radial-gradient(1px 1px at 180px 260px, white, transparent);
    background-size: 350px 300px;
    background-repeat: repeat;
    animation: stars 200s linear infinite;
    opacity: 0.8;
}

/* Milky Way effect */
.background-animation::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(147, 112, 219, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 50%, rgba(72, 61, 139, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(106, 90, 205, 0.1) 0%, transparent 50%);
}

@keyframes stars {
    0% { transform: translateY(0); }
    100% { transform: translateY(-300px); }
}

/* ===== SOLAR SYSTEM ===== */
.solar-system {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 700px;
}

.sun {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    margin: -40px 0 0 -40px;
    background: radial-gradient(circle, #fdb813, #ff9500, #ff6347);
    border-radius: 50%;
    box-shadow: 0 0 60px #ffa500, 0 0 100px #ff6347;
    animation: sunPulse 6s ease-in-out infinite;
}

@keyframes sunPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 60px #ffa500, 0 0 100px #ff6347;
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 80px #ffa500, 0 0 120px #ff6347;
    }
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.planet {
    position: absolute;
    border-radius: 50%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

/* Mercury - Orbital period: 88 days */
.orbit-mercury {
    width: 140px;
    height: 140px;
    animation: orbit 7s linear infinite;
}

.mercury {
    width: 8px;
    height: 8px;
    background: radial-gradient(circle at 30% 30%, #b8b8b8, #6d6d6d);
}

/* Venus - Orbital period: 225 days */
.orbit-venus {
    width: 180px;
    height: 180px;
    animation: orbit 11.2s linear infinite;
}

.venus {
    width: 13px;
    height: 13px;
    background: radial-gradient(circle at 30% 30%, #ffd89b, #b8860b);
}

/* Earth - Orbital period: 365 days */
.orbit-earth {
    width: 220px;
    height: 220px;
    animation: orbit 15s linear infinite;
}

.earth {
    width: 14px;
    height: 14px;
    background: radial-gradient(circle at 30% 30%, #5da9e9, #003d82);
    position: relative;
}

.earth::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.3), transparent 40%);
}

/* Mars - Orbital period: 687 days */
.orbit-mars {
    width: 270px;
    height: 270px;
    animation: orbit 18.8s linear infinite;
}

.mars {
    width: 11px;
    height: 11px;
    background: radial-gradient(circle at 30% 30%, #e27b58, #8b0000);
}

/* Jupiter - Orbital period: 12 years */
.orbit-jupiter {
    width: 360px;
    height: 360px;
    animation: orbit 29.5s linear infinite;
}

.jupiter {
    width: 32px;
    height: 32px;
    background: 
        linear-gradient(to bottom, 
            #c88b3a 0%, 
            #b8860b 20%, 
            #d4a574 40%, 
            #c8975f 60%, 
            #a0826d 80%, 
            #8b7355 100%);
    position: relative;
}

.jupiter::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.2), transparent 40%);
}

/* Saturn - Orbital period: 29 years */
.orbit-saturn {
    width: 440px;
    height: 440px;
    animation: orbit 45s linear infinite;
}

.saturn {
    width: 28px;
    height: 28px;
    background: radial-gradient(circle at 30% 30%, #fad5a5, #c9a86a);
    position: relative;
}

.saturn .ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    margin: -25px 0 0 -25px;
    border: 4px solid rgba(218, 165, 32, 0.7);
    border-radius: 50%;
    transform: rotateX(75deg);
    box-shadow: inset 0 0 10px rgba(139, 90, 43, 0.6);
}

/* Uranus - Orbital period: 84 years */
.orbit-uranus {
    width: 520px;
    height: 520px;
    animation: orbit 60s linear infinite;
}

.uranus {
    width: 20px;
    height: 20px;
    background: radial-gradient(circle at 30% 30%, #7de3f4, #1ca3af);
}

/* Neptune - Orbital period: 165 years */
.orbit-neptune {
    width: 600px;
    height: 600px;
    animation: orbit 82s linear infinite;
}

.neptune {
    width: 19px;
    height: 19px;
    background: radial-gradient(circle at 30% 30%, #5b5ddf, #1e3a8a);
}

@keyframes orbit {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Responsive Solar System */
@media (max-width: 1200px) {
    .solar-system {
        width: 500px;
        height: 500px;
    }
    
    .sun { width: 60px; height: 60px; margin: -30px 0 0 -30px; }
    .orbit-mercury { width: 100px; height: 100px; }
    .orbit-venus { width: 130px; height: 130px; }
    .orbit-earth { width: 160px; height: 160px; }
    .orbit-mars { width: 190px; height: 190px; }
    .orbit-jupiter { width: 260px; height: 260px; }
    .orbit-saturn { width: 310px; height: 310px; }
    .orbit-uranus { width: 370px; height: 370px; }
    .orbit-neptune { width: 430px; height: 430px; }
    
    .jupiter { width: 24px; height: 24px; }
    .saturn { width: 20px; height: 20px; }
    .saturn .ring { width: 36px; height: 36px; margin: -18px 0 0 -18px; border-width: 3px; }
}

@media (max-width: 768px) {
    .solar-system {
        width: 350px;
        height: 350px;
    }
    
    .sun { width: 40px; height: 40px; margin: -20px 0 0 -20px; }
    .orbit-mercury { width: 70px; height: 70px; }
    .orbit-venus { width: 90px; height: 90px; }
    .orbit-earth { width: 110px; height: 110px; }
    .orbit-mars { width: 135px; height: 135px; }
    .orbit-jupiter { width: 180px; height: 180px; }
    .orbit-saturn { width: 220px; height: 220px; }
    .orbit-uranus { width: 260px; height: 260px; }
    .orbit-neptune { width: 300px; height: 300px; }
    
    .mercury { width: 5px; height: 5px; }
    .venus { width: 8px; height: 8px; }
    .earth { width: 9px; height: 9px; }
    .mars { width: 7px; height: 7px; }
    .jupiter { width: 18px; height: 18px; }
    .saturn { width: 15px; height: 15px; }
    .saturn .ring { width: 26px; height: 26px; margin: -13px 0 0 -13px; border-width: 2px; }
    .uranus { width: 12px; height: 12px; }
    .neptune { width: 11px; height: 11px; }
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to right, rgba(255, 99, 71, 0.95), rgba(255, 165, 0, 0.95));
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 30px rgba(157, 78, 221, 0.3);
    border-bottom: 1px solid rgba(255, 127, 80, 0.3);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scroll-down {
    transform: translateY(-100%);
}

.navbar.scroll-up {
    transform: translateY(0);
    box-shadow: 0 4px 30px rgba(157, 78, 221, 0.5);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    text-decoration: none;
    transition: var(--transition-fast);
}

.nav-logo:hover {
    color: #ffe4b5;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
}

.nav-logo:hover {
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #000000;
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
    position: relative;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 50px;
    position: relative;
    background: transparent;
    width: 100%;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-greeting {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 10px;
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-titles {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 20px;
    min-height: 60px;
}

.typing-text::after {
    content: '|';
    animation: blink 1s infinite;
}

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

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 5px 20px rgba(157, 78, 221, 0.5);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(157, 78, 221, 0.6), 0 0 20px rgba(255, 0, 110, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-5px);
}

.resume-link {
    width: auto;
    padding: 0 20px;
    border-radius: 25px;
    gap: 8px;
}

.resume-link span {
    font-size: 1rem;
    font-weight: 600;
}

.hero-image {
    position: relative;
}

.image-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(157, 78, 221, 0.3);
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
    transition: var(--transition-slow);
    position: relative;
    z-index: 2;
}

.image-container:hover img {
    transform: scale(1.05);
}

.image-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: none;
    animation: none;
    pointer-events: none;
    z-index: 1;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator a {
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-15px); }
    60% { transform: translateY(-10px); }
}

/* ===== SECTIONS ===== */
.page-section {
    padding: var(--section-padding);
    background: transparent;
    position: relative;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.page-section:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #9d4edd, #ff006e, #00d9ff);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(157, 78, 221, 0.6);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 20px;
}

/* ===== CARDS GRID ===== */
.cards-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    gap: 30px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(157, 78, 221, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(157, 78, 221, 0.4), 0 0 30px rgba(255, 0, 110, 0.3);
    border-color: rgba(157, 78, 221, 0.5);
}

/* ===== ABOUT SECTION ===== */
.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #ffffff;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #9d4edd, #c77dff, #ff006e);
    border-radius: 15px;
    color: white;
    box-shadow: 0 8px 25px rgba(157, 78, 221, 0.4);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.highlight-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.highlight-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.highlight-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background: linear-gradient(135deg, #9d4edd, #ff006e);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
    box-shadow: 0 5px 20px rgba(157, 78, 221, 0.5);
}

.highlight-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.highlight-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== EDUCATION SECTION ===== */
.education-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.education-card {
    position: relative;
    overflow: hidden;
}

.education-year {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-light);
    opacity: 0.15;
    position: absolute;
    top: 20px;
    right: 20px;
}

.education-content h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.education-degree {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.education-score {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    align-items: start;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 200px;
}

.project-header {
    margin-bottom: 15px;
}

.project-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.project-duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Know More Button */
.know-more-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #9d4edd, #c77dff);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    margin-top: 15px;
}

.know-more-btn:hover {
    background: linear-gradient(135deg, #7b2cbf, #9d4edd);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.4);
}

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

.know-more-btn.active i {
    transform: rotate(180deg);
}

/* Project Details - Hidden by default */
.project-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin-top 0.4s ease;
}

.project-details.active {
    max-height: 1000px;
    margin-top: 20px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    background: linear-gradient(135deg, #9d4edd, #c77dff);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(157, 78, 221, 0.3);
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition-fast);
}

.project-link:hover {
    color: var(--primary-dark);
    transform: translateX(5px);
}

.project-link i {
    margin-right: 5px;
}

/* ===== CERTIFICATES SECTION ===== */
.certificates-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

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

.certificate-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.certificate-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.certificate-issuer {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.certificate-date {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* ===== PUBLICATIONS SECTION ===== */
.publications-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.publication-card {
    border-left: 4px solid var(--primary-color);
}

.publication-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, #9d4edd, #ff006e);
    margin: 0 0 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 5px 20px rgba(157, 78, 221, 0.5);
}

.publication-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
}

.publication-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.publication-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.publication-tag {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.publication-tag i {
    margin-right: 5px;
    color: var(--primary-color);
}

/* ===== MEMBERSHIPS & HOBBIES SECTION ===== */
.additional-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.membership-card,
.hobbies-card {
    height: 100%;
}

.membership-icon,
.hobbies-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 8px 25px rgba(157, 78, 221, 0.5);
}

.membership-card h3,
.hobbies-card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-align: center;
}

.membership-item {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 10px;
    margin-top: 15px;
}

.membership-item h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.membership-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.hobby-tags {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.hobby-tag {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    color: var(--text-primary);
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition-normal);
    border-left: 3px solid var(--primary-color);
}

.hobby-tag:hover {
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    color: white;
    transform: translateX(10px);
    box-shadow: 0 5px 25px rgba(157, 78, 221, 0.6);
}

.hobby-tag i {
    margin-right: 10px;
    font-size: 1.2rem;
}

/* ===== PROJECT BADGES ===== */
.featured-project {
    position: relative;
}

.project-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 10;
}

/* ===== CERTIFICATES SECTION ===== */
.certificates-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

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

.certificate-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.certificate-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.certificate-issuer {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.certificate-date {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

.skill-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, #9d4edd, #ff006e);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 5px 20px rgba(157, 78, 221, 0.5);
}

.skill-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.skill-tag {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    color: white;
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(157, 78, 221, 0.5);
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.contact-card {
    text-align: center;
    cursor: pointer;
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 8px 25px rgba(157, 78, 221, 0.5);
}

.contact-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.contact-info {
    color: var(--text-secondary);
    word-break: break-word;
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-info:hover {
    color: var(--primary-color);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.footer-content p {
    margin-bottom: 10px;
}

.footer-tagline {
    color: var(--text-light);
    font-style: italic;
}

/* ===== SCROLL TO TOP BUTTON ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #9d4edd, #ff006e, #00d9ff);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(157, 78, 221, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 15px 50px rgba(157, 78, 221, 0.6), 0 0 30px rgba(255, 0, 110, 0.5);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        padding: 30px 0;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        gap: 0;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        padding: 15px 30px;
        width: 100%;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding: 0 15px;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .hero-titles {
        font-size: 1.5rem;
    }

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

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

    .hero-image {
        order: -1;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .additional-content {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
        width: 100%;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

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

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

@media (max-width: 480px) {
    .hero {
        padding: 80px 15px 40px;
    }

    .hero-content {
        padding: 0 10px;
    }

    .hero-name {
        font-size: 2rem;
        word-wrap: break-word;
    }

    .hero-titles {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 0.95rem;
        padding: 0 5px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .page-section {
        padding: 60px 15px;
    }

    .scroll-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
    }
}