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

:root {
    --primary-color: #3b82f6;
    --secondary-color: #2563eb;
    --accent-color: #60a5fa;
    --dark-bg: #0a0e1a;
    --darker-bg: #050810;
    --card-bg: #111827;
    --card-hover: #1f2937;
    --light-bg: #1a202c;
    --text-dark: #f1f5f9;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    --white: #ffffff;
    --border-color: #334155;
    --border-light: #1e293b;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-colored: 0 8px 30px rgba(59, 130, 246, 0.2);
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--dark-bg);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

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

section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-dark);
    position: relative;
    padding-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50px;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

/* ========== Navigation ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 30px;
}

.nav-brand h2 {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 10px 20px;
    border-radius: 30px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 30px;
    z-index: -1;
}

.nav-link:hover {
    color: var(--white);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    opacity: 0.15;
}

.nav-link.active {
    color: var(--white);
    background: var(--gradient-primary);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4), 0 0 0 1px rgba(59, 130, 246, 0.2);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* ========== Hero Section ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    margin-top: 70px;
    position: relative;
    overflow: hidden;
    transition: background-image 1s ease-in-out;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.75) 0%, rgba(30, 58, 138, 0.70) 100%);
    pointer-events: none;
    z-index: 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(30, 64, 175, 0.15) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 1s ease;
    position: relative;
    z-index: 2;
}

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

.highlight {
    color: #93c5fd;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.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;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: var(--primary-color);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 10px;
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.3rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-links a:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: var(--white);
}

.social-links a:hover::before {
    opacity: 1;
}

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

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

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

.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: 10px;
    bottom: 10px;
    background: var(--gradient-primary);
    border-radius: 20px;
    opacity: 0.15;
    z-index: -1;
    filter: blur(20px);
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.about-text h3 {
    font-size: 2.2rem;
    margin-bottom: 25px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

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

.about-info {
    margin: 30px 0;
    background: var(--card-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-light);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item i {
    color: var(--accent-color);
    font-size: 1.3rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    flex-shrink: 0;
}

.info-item span {
    color: var(--text-light);
    font-size: 1rem;
}

/* ========== Experience Section ========== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

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

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

.timeline-dot {
    position: absolute;
    left: -8px;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    border-radius: 15px;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.timeline-content:hover {
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.2);
    transform: translateX(8px);
    border-color: rgba(59, 130, 246, 0.3);
}

.timeline-content:hover::before {
    opacity: 0.05;
}

.timeline-date {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.timeline-content h3 {
    font-size: 1.6rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.timeline-content h4 {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-weight: 600;
    font-size: 1.1rem;
}

.timeline-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.7;
}

.timeline-content ul {
    margin-top: 15px;
    padding-left: 20px;
}

.timeline-content li {
    margin-bottom: 10px;
    color: var(--text-light);
    line-height: 1.7;
    position: relative;
}

.timeline-content li::marker {
    color: var(--accent-color);
}

/* ========== Skills Section ========== */
.skills {
    background: var(--darker-bg);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
}

.skill-category {
    background: var(--card-bg);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 50px rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.3);
}

.skill-category:hover::before {
    opacity: 0.05;
}

.skill-category h3 {
    color: var(--accent-color);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.skill-category h3 i {
    font-size: 1.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.skill-tag {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 0.9rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
}

.skill-tag:hover {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

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

.project-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.3);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(37, 99, 235, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.project-link:hover {
    transform: scale(1.1);
}

.project-info {
    padding: 30px;
}

.project-info h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-weight: 700;
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.project-tech span {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    font-weight: 500;
}

/* ========== Contact Section ========== */
.contact {
    background: var(--darker-bg);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.blog-content {
    padding: 25px;
}

.blog-category {
    display: inline-block;
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.85rem;
    margin-bottom: 10px;
}

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

.blog-content p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.3s ease;
}

.read-more:hover {
    gap: 10px;
}

/* ========== Contact Section ========== */

.contact-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 60px;
    font-size: 1.15rem;
    line-height: 1.7;
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--card-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateX(5px);
}

.contact-item i {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.contact-item h4 {
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

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

.contact-item p a {
    color: var(--accent-color);
    transition: color 0.3s ease;
}

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

.contact-form {
    background: var(--light-bg);
    padding: 40px;
    border-radius: 10px;
    display: none; /* Hidden for now */
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.contact-form .btn {
    width: 100%;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
}

/* ========== Footer ========== */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid rgba(59, 130, 246, 0.1);
    color: var(--text-light);
    padding: 40px 0;
    text-align: center;
}

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

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

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

.footer-social a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    border-color: var(--primary-color);
}

/* ========== Animations ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 30px 0;
    }

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

    .hamburger {
        display: flex;
    }

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

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

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

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

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

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

    .footer .container {
        flex-direction: column;
        gap: 20px;
    }

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

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

    .section-title {
        font-size: 1.75rem;
    }

    .timeline-item {
        padding-left: 30px;
    }
}