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

:root {
    --primary: #3a86ff;
    --secondary: #8338ec;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --success: #38b000;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --radius: 10px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: var(--light);
}

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

section {
    padding: 100px 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 1.1rem;
    transition: color 0.3s;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s;
}

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

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding-top: 150px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    color: #ffd166;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: white;
    color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

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

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

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
    border: 5px solid rgba(255, 255, 255, 0.2);
}

/* ============================================
   SECTION TITLES
   ============================================ */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-content {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.about-text {
    flex: 2;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--gray);
}

.about-info {
    flex: 1;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.info-card h3 {
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.info-card li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-card li strong {
    flex-shrink: 0;
    min-width: 100px;
}

.about-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 40px auto 0;
    gap: 20px;
}

.stat {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 150px;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat p {
    color: var(--gray);
    margin: 0;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background: #f8f9fa;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.skill-category {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-item {
    margin-bottom: 20px;
}

.skill-item span {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.skill-bar {
    height: 10px;
    background: var(--light-gray);
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 5px;
    transition: width 1s ease-in-out;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.project-content {
    padding: 25px;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.project-content p {
    color: var(--gray);
    margin-bottom: 20px;
}

.project-tech {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.project-tech span {
    background: var(--light-gray);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--dark);
}

.project-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: gap 0.3s;
}

.project-link:hover {
    gap: 15px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-content {
    display: block;
}

.contact-info {
    width: 100%;
}

.contact-heading {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.contact-description {
    color: var(--gray);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.contact-details.floating {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.contact-card.hover-lift:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(58, 134, 255, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.card-icon.email {
    background: linear-gradient(135deg, #3a86ff, #8338ec);
}

.card-icon.phone {
    background: linear-gradient(135deg, #11998e, #38ef7d);
}

.card-header h3 {
    color: var(--dark);
    font-size: 1.4rem;
    margin: 0;
    font-weight: 600;
}

.card-body {
    margin-bottom: 20px;
}

.card-body p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9ff;
    border-radius: 12px;
    border: 1px solid #e6e9ff;
}

.contact-info-item i {
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-info-item span {
    color: var(--dark);
    font-weight: 500;
    font-size: 1.1rem;
    word-break: break-word;
    overflow-wrap: break-word;
}

.card-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.card-button {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    color: white;
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s;
    width: 100%;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.card-button:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

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

.social-link {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--light-gray);
    border-radius: 50%;
    color: var(--dark);
    font-size: 1.2rem;
    transition: all 0.3s;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links h4,
.footer-newsletter h4 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: white;
}

.footer-newsletter p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.newsletter-form {
    display: flex;
    margin-top: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 50px 0 0 50px;
}

.newsletter-form button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 0 50px 50px 0;
    cursor: pointer;
    transition: background 0.3s;
}

.newsletter-form button:hover {
    background: var(--secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--secondary);
    transform: translateY(-5px);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 20px 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 15px 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .skills-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

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

    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    section {
        padding: 70px 0;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .stat {
        min-width: 120px;
        padding: 15px;
    }
    
    .stat h3 {
        font-size: 2rem;
    }

    .contact-info-item span {
        font-size: 0.95rem;
    }

    .card-button {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
}