/* ================================================
   PROFESSIONAL PORTFOLIO - CSS
   Clean, Modern, Recruiter-Focused Design
   ================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Professional color palette */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    --secondary: #64748b;
    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --dark: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-accent: #f1f5f9;
    --bg-gradient: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --info: #06b6d4;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Segoe UI', system-ui, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 8px 24px rgba(37, 99, 235, 0.25);
    --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

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

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

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

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

.nav-link {
    color: var(--text);
    font-weight: 500;
    padding: 0.5rem;
    position: relative;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--dark);
    transition: var(--transition);
}

/* ===== HEADER ===== */
.header {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 50%, #f0f9ff 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.header::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 50px) scale(1.1); }
}

.header-content {
    position: relative;
    z-index: 1;
}

.header-name {
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease-out;
    text-shadow: 0 2px 20px rgba(37, 99, 235, 0.1);
}

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

.header-role {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    color: var(--primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.header-tagline {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.header-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    font-size: 1.5rem;
}

.social-links a {
    color: var(--text-light);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--bg-accent);
    transition: var(--transition);
}

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-primary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.35);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary);
    color: var(--primary);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.btn-outline:hover::before {
    width: 100%;
}

.btn-outline:hover {
    color: white;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary);
}

/* ===== SECTION TITLE ===== */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    z-index: -1;
    border-radius: 50%;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* ===== ABOUT SECTION ===== */
.about {
    background-color: var(--bg-primary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    text-align: justify;
    color: var(--text);
}

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

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-left-width: 6px;
}

.stat h3 {
    font-size: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
    font-weight: 800;
}

.stat p {
    color: var(--text-light);
    margin: 0;
    font-weight: 600;
    font-size: 0.95rem;
}

/* ===== SKILLS SECTION ===== */
.skills {
    background-color: var(--bg-secondary);
}

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

.skill-category {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.skill-category:hover::before {
    transform: scaleX(1);
}

.skill-category:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
    border-color: var(--primary-light);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.category-header i {
    font-size: 1.5rem;
    color: var(--primary);
}

.category-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-item {
    padding: 0.5rem 1rem;
    background-color: var(--bg-accent);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text);
    transition: var(--transition);
    border: 1px solid transparent;
    font-weight: 500;
}

.skill-item:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    border-color: var(--primary);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background-color: var(--bg-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.05), transparent);
    transition: left 0.6s ease;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary);
}

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

.project-title {
    font-size: 1.5rem;
    color: var(--dark);
    margin: 0;
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.project-links a {
    color: var(--text-light);
    font-size: 1.25rem;
    transition: var(--transition);
}

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

.project-problem {
    color: var(--text);
    margin-bottom: var(--spacing-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-tech span {
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-accent) 100%);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.project-tech span:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
}

.project-outcome {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background-color: var(--bg-secondary);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-gradient);
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.3);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -6px;
    top: 0;
    width: 15px;
    height: 15px;
    background: var(--primary-gradient);
    border-radius: 50%;
    border: 3px solid var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2), 0 0 12px rgba(37, 99, 235, 0.4);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2), 0 0 12px rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.1), 0 0 20px rgba(37, 99, 235, 0.6);
    }
}

.timeline-content {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(8px);
    border-left-width: 6px;
}

.timeline-date {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
    transition: var(--transition);
}

.timeline-date:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.timeline-content h3 {
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-content ul {
    margin-left: var(--spacing-md);
    color: var(--text);
}

.timeline-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* ===== EDUCATION & ACHIEVEMENTS ===== */
.education {
    background-color: var(--bg-primary);
}

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

.education-card {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    gap: var(--spacing-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.education-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
    border-color: var(--primary-light);
}

.education-icon {
    font-size: 2.5rem;
    color: var(--primary);
}

.education-details h3 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.education-details h4 {
    color: var(--primary);
    font-weight: 600;
}

.education-date,
.education-gpa {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.education-coursework {
    color: var(--text);
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.education-details ul {
    margin-left: var(--spacing-md);
    margin-top: 0.5rem;
    color: var(--text);
}

.education-details li {
    margin-bottom: 0.25rem;
}

.subsection-title {
    font-size: 1.5rem;
    margin: var(--spacing-md) 0;
    color: var(--dark);
}

.certifications-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.cert-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.cert-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--success);
}

.cert-item i {
    color: var(--primary);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.cert-item strong {
    display: block;
    color: var(--dark);
}

.cert-item span {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.achievement-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.achievement-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px) scale(1.02);
    border-left-width: 6px;
}

.achievement-icon {
    font-size: 1.5rem;
    color: var(--primary);
}

.achievement-content h4 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.achievement-content p {
    color: var(--text);
    margin-bottom: 0.5rem;
}

.achievement-date {
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background-color: var(--bg-secondary);
}

.contact-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
    border-color: var(--primary-light);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: var(--dark);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.contact-item a,
.contact-item p {
    color: var(--text);
    margin: 0;
}

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

.contact-social {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-icons a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-accent);
    border-radius: var(--radius-md);
    color: var(--text-light);
    font-size: 1.25rem;
    transition: var(--transition);
}

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

/* ===== CONTACT FORM ===== */
.contact-form {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), 0 2px 8px rgba(37, 99, 235, 0.15);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
    color: white;
    padding: var(--spacing-md) 0;
    text-align: center;
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1);
}

.footer-content p {
    margin: 0.25rem 0;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
    .education-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 5px;
    }
    
    .timeline-item {
        padding-left: var(--spacing-md);
    }
    
    .timeline-marker {
        left: 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-xl: 3.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
}

/* ===== ACCESSIBILITY ===== */
.btn:focus,
.nav-link:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: smooth;
    }
}