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

:root {
    --primary-color: #FF4757;
    --secondary-color: #2C3E50;
    --accent-color: #3498DB;
    --text-primary: #FFFFFF;
    --text-secondary: #BDC3C7;
    --bg-primary: #0A0E27;
    --bg-secondary: #1A1E3F;
    --bg-card: #252A4A;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-2);
    border-radius: 2px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-brand .accent {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-1);
    opacity: 0.1;
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 71, 87, 0.3) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

 @keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.5;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-greeting {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #fff 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-2);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

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

.hero-social {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.hero-social a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.hero-social a:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-5px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-secondary);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

 @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

 @keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* Fade-in animations */
.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.fade-in-delay-1 {
    animation: fadeIn 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

.fade-in-delay-3 {
    animation: fadeIn 0.8s ease-out 0.6s forwards;
    opacity: 0;
}

.fade-in-delay-4 {
    animation: fadeIn 0.8s ease-out 0.8s forwards;
    opacity: 0;
}

.fade-in-delay-5 {
    animation: fadeIn 0.8s ease-out 1s forwards;
    opacity: 0;
}

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

/* ===== About Section ===== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-intro {
    font-size: 1.15rem;
    color: var(--text-primary);
    font-weight: 500;
}

.about-quote {
    font-style: italic;
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    margin-top: 30px;
    color: var(--text-primary);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

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

.stat-circle {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto 15px;
}

.stat-svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.stat-bg {
    fill: none;
    stroke: var(--bg-card);
    stroke-width: 10;
}

.stat-progress {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 10;
    stroke-linecap: round;
    stroke-dasharray: 565.48;
    stroke-dashoffset: 565.48;
    transition: stroke-dashoffset 1.5s ease-out;
}

.stat-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Skills Section ===== */
.skills-content {
    display: grid;
    gap: 40px;
}

.skills-category {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 15px;
    transition: var(--transition);
}

.skills-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.skills-category-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.skill-item {
    background: var(--bg-card);
    padding: 15px 20px;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    border: 2px solid transparent;
}

.skill-item:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.2);
}

/* ===== Experience Section ===== */
.experience {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--bg-card);
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 50px;
}

.timeline-marker {
    position: absolute;
    left: -8px;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    box-shadow: 0 0 0 4px var(--bg-secondary), 0 0 0 8px var(--bg-card);
}

.timeline-content {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 15px;
    transition: var(--transition);
}

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

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.timeline-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.timeline-company {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
}

.timeline-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.highlight-badge {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.timeline-project {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.timeline-project strong {
    color: var(--text-primary);
}

/* ===== Projects Section ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-secondary);
    padding: 35px;
    border-radius: 15px;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.project-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

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

.tag {
    background: var(--bg-card);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.project-link:hover {
    gap: 10px;
}

/* ===== Education Section ===== */
.education {
    background: var(--bg-secondary);
}

.education-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.education-item {
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    padding: 30px;
    border-radius: 15px;
}

.education-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-primary);
}

.education-details h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.education-details h4 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.education-institution {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.education-date {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.certifications-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.certification-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--bg-card);
    padding: 15px 20px;
    border-radius: 10px;
    transition: var(--transition);
}

.certification-item:hover {
    transform: translateX(10px);
    background: var(--bg-secondary);
}

.certification-icon {
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-primary);
    font-weight: 700;
}

.certification-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Contact Section ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-primary);
}

.contact-details h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.contact-details a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact-form-wrapper {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 15px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.contact-form button {
    width: 100%;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--bg-card);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-content p {
    color: var(--text-secondary);
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-3px);
}

/* ===== Responsive Design ===== */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        padding: 30px;
        gap: 20px;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

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

    .nav-toggle {
        display: flex;
    }

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

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

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

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

    .timeline::before {
        left: 10px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-marker {
        left: 2px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

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

    .hero-description {
        font-size: 1rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }

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

    .stat-circle {
        width: 120px;
        height: 120px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

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

    .contact-form-wrapper {
        padding: 25px;
    }
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}