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

:root {
    /* Color Palette */
    --primary: #0f62fe;
    --primary-dark: #0043ce;
    --secondary: #7c3aed;
    --secondary-dark: #6d28d9;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --bg-dark: #0a0e27;
    --bg-darker: #050812;
    --bg-light: #f3f4f6;
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --border-color: #1f2937;
    --success: #10b981;
    --warning: #f59e0b;
    
    /* Typography */
    --font-sora: 'Sora', sans-serif;
    --font-inter: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-inter);
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    min-height: 70px;
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-brand .logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    font-family: var(--font-sora);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links 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 ease;
}

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 4px 0;
    border-radius: 2px;
    transition: var(--transition);
}

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

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

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

.nav-links.active {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    list-style: none;
    z-index: 999;
    width: 100%;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-xxl);
    padding: var(--spacing-xxl) var(--spacing-xl);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-content {
    z-index: 10;
    padding: var(--spacing-lg) 0;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sora);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    padding: var(--spacing-lg) 0;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
    flex-wrap: wrap;
    padding: var(--spacing-lg) 0;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: var(--font-inter);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--text-primary);
    box-shadow: 0 10px 25px rgba(15, 98, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(15, 98, 254, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    z-index: -1;
    transition: left 0.3s ease;
}

.btn-secondary:hover::before {
    left: 0;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.stat {
    flex: 1;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-family: var(--font-sora);
}

.stat p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-socials {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.social-link {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.75rem;
    background: rgba(15, 98, 254, 0.1);
    color: var(--accent);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-decoration: none;
    cursor: pointer;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(15, 98, 254, 0.3);
}

.social-link svg {
    width: 28px;
    height: 28px;
}

.hero-visual {
    position: relative;
    height: 400px;
    display: none;
}

.floating-card {
    position: absolute;
    padding: var(--spacing-md);
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 1rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 15%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: 2s;
}

.card-4 {
    top: 30%;
    right: 5%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ===========================
   Sections Common
   =========================== */
section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    font-family: var(--font-sora);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    border-radius: 2px;
}

/* ===========================
   About Section
   =========================== */
.about {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-highlights {
    display: grid;
    gap: var(--spacing-lg);
}

.highlight-item {
    padding: var(--spacing-lg);
    background: rgba(15, 98, 254, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    transition: var(--transition);
}

.highlight-item:hover {
    background: rgba(15, 98, 254, 0.1);
    border-color: var(--primary);
    transform: translateX(5px);
}

.highlight-item h4 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.highlight-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.about-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.tech-badge {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    text-align: center;
    transition: var(--transition);
}

.tech-badge:hover {
    transform: translateY(-5px);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
}

.badge-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.tech-badge p {
    font-weight: 600;
    color: var(--text-primary);
}

/* ===========================
   Experience Section
   =========================== */
.experience {
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.03) 0%, rgba(124, 58, 237, 0.03) 100%);
}

.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
    position: relative;
    padding: var(--spacing-xl) 0;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
}

.experience-item {
    display: flex;
    gap: var(--spacing-lg);
    position: relative;
}

.timeline-marker {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    position: relative;
    top: 5px;
    box-shadow: 0 0 20px rgba(15, 98, 254, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.experience-card {
    flex: 1;
    padding: var(--spacing-lg);
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    transition: var(--transition);
}

.experience-card:hover {
    background: rgba(31, 41, 55, 0.8);
    border-color: var(--primary);
    transform: translateX(10px);
}

.experience-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-family: var(--font-sora);
}

.experience-period {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.experience-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.experience-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.experience-details li {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    padding-left: var(--spacing-md);
    position: relative;
}

.experience-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.experience-details strong {
    color: var(--text-secondary);
}

/* ===========================
   Skills Section
   =========================== */
.skills {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
}

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

.skill-category {
    padding: var(--spacing-lg);
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    transition: var(--transition);
}

.skill-category:hover {
    background: rgba(31, 41, 55, 0.8);
    border-color: var(--accent);
    transform: translateY(-5px);
}

.category-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sora);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.15) 0%, rgba(124, 58, 237, 0.15) 100%);
    border: 1px solid rgba(15, 98, 254, 0.3);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--text-primary);
    border-color: transparent;
}

/* ===========================
   Projects Section
   =========================== */
.projects {
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.03) 0%, rgba(6, 182, 212, 0.03) 100%);
}

.projects-showcase {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.project-card {
    padding: var(--spacing-lg);
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    transition: var(--transition);
}

.project-card.featured {
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border: 2px solid var(--primary);
}

.project-card:hover {
    border-color: var(--accent);
    background: rgba(31, 41, 55, 0.8);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(15, 98, 254, 0.2);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.project-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-sora);
    flex: 1;
}

.project-tag {
    padding: 0.375rem 0.875rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    white-space: nowrap;
    margin-left: var(--spacing-md);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    font-size: 1.05rem;
}

.project-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(15, 98, 254, 0.05);
    border-radius: 0.75rem;
}

.metric {
    text-align: center;
}

.metric h4 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
    font-family: var(--font-sora);
}

.metric p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.project-features {
    margin-bottom: var(--spacing-lg);
}

.project-features h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    font-family: var(--font-sora);
}

.project-features ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-md);
}

.project-features li {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    padding-left: var(--spacing-md);
    position: relative;
}

.project-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.project-tech .tech-badge {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
    border: 1px solid rgba(15, 98, 254, 0.4);
    border-radius: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    transition: var(--transition);
}

.project-tech .tech-badge:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--text-primary);
    border-color: transparent;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(15, 98, 254, 0.05) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sora);
}

.contact-info p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.contact-link:hover {
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateX(5px);
}

.link-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 0.5rem;
    font-weight: bold;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.link-icon svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
}

.form-group input,
.form-group textarea {
    flex: 1;
    padding: var(--spacing-md);
    background: rgba(31, 41, 55, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-family: var(--font-inter);
    font-size: 1rem;
    transition: var(--transition);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(31, 41, 55, 0.9);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 98, 254, 0.1);
}

/* ===========================
   Footer
   =========================== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-muted);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

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

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

    .experience-timeline::before {
        left: 20px;
    }

    .timeline-marker {
        width: 50px;
        height: 50px;
        min-width: 50px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-lg);
        gap: 0;
        list-style: none;
        z-index: 999;
        width: 100%;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

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

    .nav-links li {
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md) 0;
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        font-size: 1.05rem;
        padding: var(--spacing-md) 0;
    }

    .nav-links a::after {
        display: none;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-brand .logo {
        gap: var(--spacing-sm);
    }

    .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 1.05rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) 0;
    }

    .btn {
        width: 100%;
        padding: 1.2rem 2rem;
        font-size: 0.95rem;
        min-height: 50px;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
    }

    .stat {
        text-align: center;
        padding: var(--spacing-md) 0;
    }

    .hero-socials {
        justify-content: center;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }

    .social-link {
        width: 50px;
        height: 50px;
    }

    .social-link svg {
        width: 26px;
        height: 26px;
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

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

    .project-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .metric h4 {
        font-size: 1.25rem;
    }

    .metric p {
        font-size: 0.8rem;
    }

    .project-features ul {
        grid-template-columns: 1fr;
    }

    .experience-timeline {
        padding-left: 0;
    }

    .experience-timeline::before {
        display: none;
    }

    .experience-item {
        gap: var(--spacing-md);
    }

    .timeline-marker {
        display: none;
    }

    .contact-form {
        gap: var(--spacing-md);
    }

    .form-group input,
    .form-group textarea {
        padding: var(--spacing-md);
        font-size: 16px;
    }

    .btn {
        min-height: 48px;
    }

    .skill-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .contact-link {
        padding: 1rem;
        min-height: 44px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: var(--spacing-lg);
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
        line-height: 1.6;
        padding: var(--spacing-md) 0;
    }

    .hero-cta {
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) 0;
        margin-bottom: var(--spacing-xl);
    }

    .btn {
        padding: 1.1rem 1.8rem;
        min-height: 48px;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.4rem;
        margin-bottom: var(--spacing-lg);
    }

    .section-title::after {
        width: 80px;
    }

    .nav-brand .logo {
        font-size: 1.1rem;
        gap: var(--spacing-xs);
    }

    .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }

    .navbar {
        padding: var(--spacing-md) 0;
        min-height: 60px;
    }

    .hamburger {
        padding: var(--spacing-md);
    }

    .stat h3 {
        font-size: 1.75rem;
    }

    .stat p {
        font-size: 0.8rem;
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .hero {
        padding: var(--spacing-xl) var(--spacing-md);
        min-height: auto;
        gap: var(--spacing-lg);
    }

    .hero-stats {
        gap: var(--spacing-md);
        padding-top: var(--spacing-md);
    }

    .hero-socials {
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
        justify-content: flex-start;
    }

    .social-link {
        width: 48px;
        height: 48px;
    }

    .social-link svg {
        width: 24px;
        height: 24px;
    }

    .hero-cta {
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) 0;
    }

    .btn {
        padding: 1.1rem 1.8rem;
        min-height: 48px;
        font-size: 0.9rem;
    }

    .project-metrics {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .metric h4 {
        font-size: 1.1rem;
    }

    .metric p {
        font-size: 0.75rem;
    }

    .highlight-item {
        padding: var(--spacing-md);
    }

    .highlight-item h4 {
        font-size: 0.95rem;
    }

    .highlight-item p {
        font-size: 0.85rem;
    }

    .experience-card {
        padding: var(--spacing-md);
    }

    .experience-card h3 {
        font-size: 1rem;
    }

    .experience-period {
        font-size: 0.85rem;
    }

    .experience-description {
        font-size: 0.9rem;
    }

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

    .project-card {
        padding: var(--spacing-md);
    }

    .project-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .project-header h3 {
        font-size: 1.1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .project-tag {
        margin-left: 0;
        margin-top: var(--spacing-sm);
    }

    .project-description {
        font-size: 0.95rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .project-features h4 {
        font-size: 1rem;
    }

    .project-features li {
        font-size: 0.85rem;
    }

    .contact-info h3 {
        font-size: 1.25rem;
    }

    .contact-link {
        font-size: 0.9rem;
        min-height: 44px;
    }

    .link-icon {
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }

    .form-group input,
    .form-group textarea {
        font-size: 16px;
        padding: var(--spacing-md);
        width: 100%;
        min-height: 44px;
    }

    .form-group textarea {
        min-height: 120px;
        resize: vertical;
    }

    .btn {
        padding: 1rem 1.5rem;
        min-height: 48px;
        width: 100%;
        text-align: center;
    }

    .hero-cta .btn {
        width: 100%;
    }
}

/* ===========================
   Utility Classes
   =========================== */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ===========================
   Scrollbar Styling
   =========================== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
}

/* ===========================
   Touch-Friendly Mobile UX
   =========================== */

/* Ensure minimum touch targets (44x44px) on mobile devices */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-links a,
    .contact-link,
    .skill-tag,
    a[href],
    button {
        min-height: 44px;
        min-width: 44px;
    }

    /* Prevent text selection on touch */
    a {
        -webkit-touch-callout: none;
        -webkit-user-select: none;
    }

    /* Reduce button padding on small screens */
    .btn {
        padding: 0.75rem 1.25rem;
    }
}

/* Improve form input on mobile */
@media (max-width: 768px) {
    input,
    textarea,
    select {
        font-size: 16px !important;
    }

    /* Prevents zoom on input focus in iOS */
    input:focus,
    textarea:focus {
        font-size: 16px;
    }
}

/* Optimize spacing for very small screens */
@media (max-width: 360px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-md: 0.75rem;
    }

    .hero-title {
        font-size: 1.3rem;
    }

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

    .project-metrics {
        gap: var(--spacing-sm);
    }
}