/* ============================================
   CSS Variables & Reset
   ============================================ */


:root {
    /* Colors */
    --color-bg: #0a0e27;
    --color-bg-light: #0f1629;
    --color-surface: #151b2e;
    --color-surface-hover: #1a2138;
    --color-text: #e2e8f0;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-accent: #8b5cf6;
    --color-accent-hover: #7c3aed;
    --color-border: #1e293b;
    --color-success: #10b981;
    --color-error: #ef4444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --font-display: 'EB Garamond', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Layout */
    --container-width: 1200px;
    --section-padding: 6rem 2rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

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

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

/* ============================================
   Container
   ============================================ */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background-color: rgba(10, 14, 39, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    position: relative;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.5px;
    flex-shrink: 0;
    margin-right: auto;
}

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

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

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

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

.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;
    padding: 0.5rem;
    flex-shrink: 0;
    z-index: 1001;
    position: relative;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-base);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--section-padding);
    position: relative;
    overflow: visible;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 600px;
    height: 700px;
    background: radial-gradient(ellipse, rgba(139, 92, 246, 0.15) 0%, rgba(139, 92, 246, 0.08) 40%, transparent 80%);
    border-radius: 50%;
    animation: rotateGlow 20s linear infinite;
    z-index: 0;
    transform-origin: center;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

@keyframes rotateGlow {
    0% { 
        transform: translateY(0) rotate(0deg); 
    }
    50% { 
        transform: translateY(30px) rotate(180deg); 
    }
    100% { 
        transform: translateY(0) rotate(360deg); 
    }
}

.hero-content {
    max-width: var(--container-width);
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
    margin-bottom: 3rem;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

.hero-greeting {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

.hero-name {
    font-family: 'EB Garamond', serif !important;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800 !important;
    line-height: 0.9;
    margin-bottom: 0.5rem;
    padding-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 100;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease-out 0.3s both;
}

.code-window {
    background-color: var(--color-surface);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    width: 100%;
}

.code-header {
    background-color: var(--color-bg-light);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-text-muted);
}

.code-dot:nth-child(1) { background-color: #ef4444; }
.code-dot:nth-child(2) { background-color: #f59e0b; }
.code-dot:nth-child(3) { background-color: #10b981; }

.code-title {
    margin-left: auto;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.code-content {
    padding: 1.5rem;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
}

.code-keyword { color: #c792ea; }
.code-variable { color: #82aaff; }
.code-property { color: #7fdbca; }
.code-string { color: #c3e88d; }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
    z-index: 10;
    pointer-events: none;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollDown 2s infinite;
}

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

@keyframes scrollDown {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(20px); opacity: 0; }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-primary);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

/* ============================================
   Section Styles
   ============================================ */

section {
    padding: var(--section-padding);
    position: relative;
}

/* ============================================
   Section Dividers
   ============================================ */

.section-divider {
    width: 100%;
    height: 120px;
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 0;
    line-height: 0;
    max-width: 100vw;
    box-sizing: border-box;
}

.section-divider svg {
    width: 100%;
    height: 100%;
    display: block;
}

.section-divider path {
    transition: fill var(--transition-base);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.section-number {
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 400;
}

/* ============================================
   About Section
   ============================================ */

.about {
    background-color: var(--color-bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
    align-items: center;
    opacity: 0;
}

.about-text {
    order: 1;
}

.about-image {
    order: 2;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
    line-height: 1.8;
}

.about-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

.about-links {
    margin-top: var(--spacing-md);
}

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

.about-image img {
    width: 100%;
    max-width: 300px;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid var(--color-border);
}

/* ============================================
   Skills Section
   ============================================ */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    opacity: 0;
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.skill-category-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: 600;
}

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

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.skill-item:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.skill-icon {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.skill-icon .iconify {
    width: 24px;
    height: 24px;
    font-size: 24px;
}

.skill-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
}

/* ============================================
   Projects Section
   ============================================ */

.projects {
    background-color: var(--color-bg-light);
}

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

.project-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    opacity: 0;
}


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

.project-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: left;
    width: 100%;
}

.project-view-details {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    text-decoration: none;
    justify-content: left;
    align-items: left;
}

.project-view-details:hover {
    color: var(--color-primary-hover);
}

.project-card:hover .project-view-details {
    color: var(--color-primary-hover);
}

.project-external-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.project-external-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.project-external-link:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.project-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--color-bg-light);
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-muted);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-light) 100%);
}

/* Hide placeholder when image is present */
.project-image:has(img) .project-placeholder {
    display: none;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    z-index: 1;
}

.project-overlay .project-link {
    pointer-events: auto;
}

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

.project-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.project-link:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

.project-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.project-description {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

.tech-tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: var(--font-mono);
    color: var(--color-primary);
}

/* ============================================
   Certificates Section
   ============================================ */

.certificates {
    padding: var(--section-padding);
    background-color: var(--color-bg);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.certificate-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    opacity: 0;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.certificate-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--color-bg-light);
    overflow: hidden;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.certificate-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.certificate-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.certificate-description {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    flex: 1;
}

.certificate-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.certificate-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.certificate-link:hover {
    color: var(--color-primary-hover);
}

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

.contact {
    background-color: var(--color-bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
    opacity: 0;
}

.contact-intro {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    transition: all var(--transition-base);
}

.contact-link:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-primary);
    transform: translateX(8px);
}

.contact-link svg {
    flex-shrink: 0;
}

.contact-form-container {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    opacity: 1;
}

.contact-form {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.025) 0%, 
        rgba(59, 130, 246, 0.05) 100%);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(59, 130, 246, 0.1);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-form.submitting {
    opacity: 0.7;
    pointer-events: none;
}

.form-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
}

.form-group label {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
}

.form-group label .iconify {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.char-counter {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--color-text);
    opacity: 0.7;
    font-weight: normal;
}

.char-counter.warning {
    color: var(--color-accent);
}

.char-counter.error {
    color: #ff4444;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text);
    outline: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), 0 4px 12px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.form-group input:invalid:not(:focus):not(:placeholder-shown),
.form-group textarea:invalid:not(:focus):not(:placeholder-shown) {
    border-color: #ff4444;
}

.form-group input.valid:not(:focus),
.form-group textarea.valid:not(:focus) {
    border-color: #44ff44;
}

.error-message {
    color: #ff4444;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
    align-items: center;
    gap: 0.25rem;
}

.error-message.show {
    display: flex;
}

.error-message .iconify {
    font-size: 1rem;
}

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

.button-loader {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-text);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#contact-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    min-height: 100%;
}

#contact-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.overlay-content {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.025) 0%, 
        rgba(59, 130, 246, 0.05) 100%);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(59, 130, 246, 0.1);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    text-align: center;
    max-width: 500px;
    width: 90%;
    animation: fadeInUp 0.4s ease-out;
}

.overlay-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: scaleIn 0.4s ease-out;
}

.overlay-icon.success {
    color: #44ff44;
}

.overlay-icon.error {
    color: #ff4444;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

#contact-overlay p {
    font-size: 1.1rem;
    color: var(--color-text);
    text-align: center;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

#contact-overlay .btn {
    margin: 0 auto;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--color-bg);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    text-align: left;
    position: relative;
}

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

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

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    color: var(--color-primary);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.footer-description {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 300px;
}

.footer-heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    width: fit-content;
}

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

.footer-social {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    width: fit-content;
}

.footer-social-link:hover {
    color: var(--color-primary);
}

.footer-social-link svg,
.footer-social-link .iconify {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-lg);
}

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

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-bg);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.back-to-top:active {
    transform: translateY(-2px);
}

/* ============================================
   Animations
   ============================================ */

/* ============================================
   Resume Lightbox
   ============================================ */

.resume-lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    box-sizing: border-box;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.resume-lightbox.show {
    display: flex;
    opacity: 1;
}

.resume-lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 95%;
    max-width: 1400px;
    max-height: 95%;
    gap: 1.5rem;
}

.resume-lightbox-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
    padding: 0 2rem;
    animation: lightboxFadeIn 0.3s ease;
}

.resume-lightbox-iframe {
    width: 100%;
    max-width: 100%;
    height: calc(95vh - 120px);
    min-height: 600px;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    cursor: default;
    animation: lightboxFadeIn 0.3s ease;
    background: white;
}

.resume-lightbox-iframe:hover {
    cursor: default;
}

@keyframes lightboxFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Close button for resume lightbox */
.resume-lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10001;
}

.resume-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

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

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-text {
        order: 2;
    }
    
    .about-image {
        order: 1;
    }
    
    .about-image {
        order: -1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 1.5rem;
    }
    
    html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
        position: relative;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0 1rem;
        box-sizing: border-box;
    }
    
    .section-divider {
        width: 100%;
        max-width: 100vw;
        overflow: hidden;
    }
    
    .nav-container {
        padding: 1rem 1rem;
        width: 100%;
        box-sizing: border-box;
        position: relative;
    }
    
    .nav-logo {
        font-size: 1.25rem;
        padding-right: 3rem; /* Space for hamburger */
        flex-shrink: 0;
    }
    
    .nav-toggle {
        display: flex !important;
        position: absolute;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
        z-index: 1002;
        background: transparent;
        pointer-events: auto;
        cursor: pointer;
        width: auto;
        height: auto;
        min-width: 44px;
        min-height: 44px;
    }
    
    .nav-toggle span {
        pointer-events: none;
    }
    
    .contact-form {
        padding: 1.5rem;
        gap: 1.5rem;
    }
    
    .form-group label {
        font-size: 0.95rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.875rem 1rem;
        font-size: 0.95rem;
    }
    
    .btn.btn-primary {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .overlay-content {
        padding: 2rem 1.5rem;
    }
    
    .overlay-icon {
        font-size: 3rem;
    }
    
    .nav-menu {
        position: fixed !important;
        top: 65px !important;
        left: 0 !important;
        right: 0 !important;
        background-color: var(--color-bg) !important;
        border-top: 1px solid var(--color-border) !important;
        border-bottom: 1px solid var(--color-border) !important;
        flex-direction: column !important;
        padding: var(--spacing-md) !important;
        width: 100% !important;
        box-sizing: border-box !important;
        z-index: 1001 !important;
        margin: 0 !important;
        display: flex !important;
        max-height: 0 !important;
        overflow: hidden !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0.3s ease, padding 0.3s ease !important;
    }
    
    .nav-menu.active {
        max-height: 500px !important;
        opacity: 1 !important;
        visibility: visible !important;
        overflow-y: auto !important;
        display: flex !important;
    }
    
    .nav-toggle {
        display: flex;
        position: absolute;
        right: var(--spacing-md);
        z-index: 1002;
        pointer-events: auto;
        min-width: 44px;
        min-height: 44px;
    }
    
    .nav-toggle span {
        pointer-events: none;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero {
        min-height: auto;
        padding-bottom: 5rem;
    }
    
    .scroll-indicator {
        bottom: 1rem;
        z-index: 10;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-column {
        text-align: center;
    }
    
    .resume-lightbox {
        padding: 1rem;
    }
    
    .resume-lightbox-content {
        max-width: 95%;
        max-height: 95%;
        gap: 1rem;
    }
    
    .resume-lightbox-title {
        font-size: 1.25rem;
        padding: 0 1rem;
    }
    
    .resume-lightbox-iframe {
        max-width: 100%;
        max-height: calc(95vh - 80px);
        min-height: 400px;
    }
    
    .resume-lightbox-close {
        top: 1rem;
        right: 1rem;
        width: 35px;
        height: 35px;
        font-size: 1.25rem;
    }
    
    .footer-description {
        max-width: 100%;
    }
    
    .footer-nav,
    .footer-social {
        align-items: center;
    }
    
    .footer-nav a,
    .footer-social-link {
        margin: 0 auto;
    }
    
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .code-window {
        width: 100%;
    }
    
    .code-content {
        padding: 1rem;
    }
    
    .code-content pre {
        font-size: 0.75rem;
    }
    
    .hero {
        padding-bottom: 4rem;
    }
    
    .scroll-indicator {
        bottom: 0.5rem;
    }
    
    .footer-content {
        gap: var(--spacing-md);
    }
    
    .footer-title {
        font-size: 1.25rem;
    }
    
    .footer-heading {
        font-size: 1rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
    
    .back-to-top svg {
        width: 18px;
        height: 18px;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
    opacity: 1;
}