/* ===================================
   VITHUSHANTH CHANDRAKUMAR PORTFOLIO
   Terminal Dark Theme
   =================================== */

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Dark Terminal Theme */
    --bg-primary: #0a0e27;
    --bg-secondary: #111827;
    --bg-card: #1a1f3a;
    --bg-code: #1e293b;
    
    --text-primary: #e6e6e6;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-cyan: #00ff9f;
    --accent-purple: #9d4edd;
    --accent-pink: #ff006e;
    --accent-blue: #00d9ff;
    
    --border-color: #2d3748;
    --border-glow: rgba(0, 255, 159, 0.3);
    
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

::selection {
    background-color: var(--accent-cyan);
    color: var(--bg-primary);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-primary);
}

code, pre {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.terminal-prompt {
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    margin-right: 0.5rem;
    font-weight: 500;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-name {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
    padding: 0.5rem 0;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--accent-cyan);
}

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(-100%);
        transition: var(--transition-normal);
        border-bottom: 2px solid var(--accent-cyan);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 255, 159, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 159, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(50px); }
}

#matrix-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
}

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

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

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
    margin-bottom: 1rem;
    line-height: 1.1;
}

.typing-container {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    min-height: 2.5rem;
}

#typed-text {
    color: var(--text-primary);
}

.cursor {
    color: var(--accent-cyan);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    max-width: 600px;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: var(--bg-primary);
    box-shadow: 0 4px 15px rgba(0, 255, 159, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 255, 159, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.btn-secondary:hover {
    background: rgba(0, 255, 159, 0.1);
    transform: translateY(-2px);
}

.hero-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.badge:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 159, 0.2);
}

.badge i {
    color: var(--accent-cyan);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

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

/* ===== SECTION STYLES ===== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.section-title {
    display: flex;
    align-items: center;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.section-line {
    height: 2px;
    background: linear-gradient(90deg, var(--accent-cyan), transparent);
    max-width: 300px;
}

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

.about-content {
    display: grid;
    gap: 3rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.highlight-item:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--accent-cyan);
}

.highlight-item h4 {
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.highlight-item p {
    color: var(--text-secondary);
    margin: 0;
}

.education {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-cyan);
}

.education h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.education-item h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.education-item p {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.education-item .year {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
    display: grid;
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--accent-cyan);
    transition: var(--transition-normal);
}

.project-card:hover {
    border-color: var(--accent-cyan);
    transform: translateX(10px);
}

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

.project-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(0, 255, 159, 0.1);
    font-family: var(--font-mono);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.project-icon i {
    font-size: 1.75rem;
    color: var(--bg-primary);
}

.project-title {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: rgba(0, 255, 159, 0.1);
    color: var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    border: 1px solid rgba(0, 255, 159, 0.2);
}

.project-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.btn-expand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-expand:hover {
    background: rgba(0, 255, 159, 0.1);
}

.btn-expand i {
    transition: var(--transition-fast);
}

.btn-expand.active i {
    transform: rotate(180deg);
}

.project-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
    margin-top: 0;
}

.project-details.active {
    max-height: 3000px;
    margin-top: 2rem;
}

.detail-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.detail-section:last-of-type {
    border-bottom: none;
}

.detail-section h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.detail-section h4 i {
    font-size: 1.25rem;
}

.detail-section p,
.detail-section li {
    color: var(--text-secondary);
}

.detail-section ul {
    list-style: none;
    padding-left: 0;
}

.detail-section li {
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    position: relative;
}

.detail-section li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
}

.architecture-flow {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1.5rem;
    background: var(--bg-code);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.architecture-flow.vertical {
    flex-direction: column;
}

.flow-item {
    background: var(--bg-card);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
}

.architecture-flow i {
    color: var(--accent-cyan);
}

.architecture-points {
    margin-top: 1rem;
}

.vpc-diagram {
    background: var(--bg-code);
    padding: 2rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.vpc-layer strong {
    display: block;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.az-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.az {
    background: rgba(157, 78, 221, 0.1);
    border: 1px solid var(--accent-purple);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.az h5 {
    color: var(--accent-purple);
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.subnet {
    background: var(--bg-card);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.subnet.public {
    border-left: 3px solid var(--accent-cyan);
}

.subnet.private {
    border-left: 3px solid var(--accent-pink);
}

pre {
    background: var(--bg-code);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

pre code {
    color: var(--text-secondary);
    line-height: 1.8;
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 255, 159, 0.1);
    color: var(--accent-cyan);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid var(--accent-cyan);
    font-weight: 600;
    transition: var(--transition-fast);
}

.project-link:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

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

.skills-grid {
    display: grid;
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

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

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background: rgba(0, 255, 159, 0.1);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 255, 159, 0.2);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(0, 255, 159, 0.2);
    border-color: var(--accent-cyan);
    transform: scale(1.05);
}

/* ===== EXPERIENCE SECTION ===== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-marker {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.5);
}

.timeline-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.timeline-content:hover {
    border-color: var(--accent-cyan);
    transform: translateX(10px);
}

.timeline-header {
    margin-bottom: 1.5rem;
}

.timeline-header h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-header .company {
    color: var(--accent-cyan);
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
}

.timeline-header .period {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.achievements {
    list-style: none;
    margin-bottom: 1.5rem;
}

.achievements li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-left: 0;
}

.achievements li::before {
    display: none;
}

.achievements i {
    color: var(--accent-cyan);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.skills-gained {
    padding: 1rem;
    background: rgba(0, 255, 159, 0.05);
    border-left: 3px solid var(--accent-cyan);
    border-radius: var(--radius-sm);
}

.skills-gained strong {
    color: var(--accent-cyan);
}

/* ===== CERTIFICATIONS SECTION ===== */
.certifications {
    background: var(--bg-secondary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-normal);
}

.cert-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

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

.cert-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cert-level {
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cert-id {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.cert-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.cert-topics span {
    background: rgba(0, 255, 159, 0.1);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    border: 1px solid rgba(0, 255, 159, 0.2);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    gap: 3rem;
}

.contact-text {
    max-width: 600px;
}

.contact-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: var(--transition-normal);
}

.contact-link:not(.location) {
    cursor: pointer;
}

.contact-link:not(.location):hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-link i {
    font-size: 1.75rem;
    color: var(--accent-cyan);
}

.contact-link strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.contact-link span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-text p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 1.25rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero {
        min-height: auto;
        padding: 8rem 0 4rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-marker {
        left: -2rem;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease;
}

/* ===== SCROLL ANIMATIONS ===== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}