/* ===================================
   CSS Variables & Root Styles
   =================================== */
:root {
    /* Colors - Light Theme (Salesforce/Agentforce Inspired) */
    --color-primary: #0176D3;        /* Salesforce Blue */
    --color-primary-dark: #014486;
    --color-primary-light: #1B96FF;
    --color-secondary: #032D60;      /* Deep Salesforce Navy */
    --color-accent: #9050E9;         /* Salesforce Purple/Agentforce */
    --color-success: #2E844A;        /* Salesforce Green */
    --color-warning: #FFB75D;        /* Salesforce Orange */
    --color-danger: #EA001E;         /* Salesforce Red */
    
    --color-text-primary: #181818;
    --color-text-secondary: #3E3E3C;
    --color-text-tertiary: #706E6B;
    
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F3F3F3;
    --color-bg-tertiary: #E5E5E5;
    
    --color-border: #DDDBDA;
    --color-shadow: rgba(0, 0, 0, 0.1);
    
    /* Gradients - Salesforce Style */
    --gradient-primary: linear-gradient(135deg, #0176D3 0%, #1B96FF 100%);
    --gradient-secondary: linear-gradient(135deg, #032D60 0%, #0176D3 100%);
    --gradient-accent: linear-gradient(135deg, #9050E9 0%, #B481FF 100%);
    --gradient-glow: linear-gradient(135deg, #0176D3 0%, #9050E9 50%, #1B96FF 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Dark Theme - Salesforce/Agentforce Inspired */
.dark {
    --color-text-primary: #FAFAF9;
    --color-text-secondary: #C9C7C5;
    --color-text-tertiary: #A8A6A3;
    
    --color-bg-primary: #16325C;      /* Salesforce Dark Blue */
    --color-bg-secondary: #0B1A2C;    /* Deeper Navy */
    --color-bg-tertiary: #1C3D5A;     /* Card backgrounds */
    
    --color-border: #2E5F8E;
    --color-shadow: rgba(0, 0, 0, 0.8);
    
    /* Enhanced gradients for dark mode */
    --gradient-primary: linear-gradient(135deg, #1B96FF 0%, #0176D3 100%);
    --gradient-secondary: linear-gradient(135deg, #032D60 0%, #16325C 100%);
    --gradient-accent: linear-gradient(135deg, #9050E9 0%, #B481FF 100%);
    --gradient-glow: linear-gradient(135deg, #1B96FF 0%, #9050E9 50%, #0176D3 100%);
}

/* Dark mode specific overrides for accessibility */
.dark .hero-greeting {
    color: var(--color-primary-light);
}

.dark .btn-secondary {
    color: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

.dark .btn-secondary:hover {
    background: var(--color-primary-light);
    color: var(--color-bg-primary);
}

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

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

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

/* Particle Canvas Background */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

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

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

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

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

/* Prevent horizontal scroll globally */
html, body {
    overflow-x: hidden;
    width: 100%;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.dark .nav.scrolled {
    background: rgba(15, 23, 42, 0.8);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: transform var(--transition-fast);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo-bracket {
    color: var(--color-primary);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    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: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--color-border);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.theme-toggle:hover {
    background: var(--color-bg-tertiary);
    transform: rotate(20deg) scale(1.1);
}

.theme-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-primary);
    transition: transform var(--transition-fast);
}

.theme-icon line {
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    z-index: 10;
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--color-primary-dark);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.hero-name {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-title {
    font-size: 2rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

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

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: transparent;
    color: var(--color-primary-dark);
    border: 2px solid var(--color-primary-dark);
}

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

.btn-icon {
    width: 20px;
    height: 20px;
}

.hero-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.social-link:hover::before {
    opacity: 1;
}

.social-link svg {
    width: 22px;
    height: 22px;
    position: relative;
    z-index: 1;
    transition: transform var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.social-link:hover svg {
    transform: scale(1.1);
    color: white;
}

/* Hero Visual */
.hero-visual {
    z-index: 10;
}

.visual-card {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-2xl);
    transition: transform var(--transition-slow);
}

.visual-card:hover {
    transform: translateY(-10px) rotateX(5deg);
}

.code-snippet {
    position: relative;
}

.code-header {
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    gap: var(--spacing-xs);
}

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

.code-dot:nth-child(1) { background: #ff5f56; }
.code-dot:nth-child(2) { background: #ffbd2e; }
.code-dot:nth-child(3) { background: #27c93f; }

.code-content {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-comment { color: #8A99AD; }
.code-keyword { color: #4A9EFF; }
.code-class { color: #FFB020; }
.code-string { color: #FF6E1B; }
.code-function { color: #00C48C; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

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

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-text-tertiary);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--color-text-tertiary);
    border-radius: var(--radius-full);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}

.scroll-indicator p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===================================
   Section Styles
   =================================== */
.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, rgba(1, 118, 211, 0.12) 0%, rgba(144, 80, 233, 0.12) 100%);
    color: var(--color-primary);
    border: 1px solid rgba(1, 118, 211, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-md);
}

.dark .section-tag {
    background: linear-gradient(135deg, rgba(27, 150, 255, 0.2) 0%, rgba(144, 80, 233, 0.15) 100%);
    border: 1px solid rgba(27, 150, 255, 0.4);
}

.section-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   Live Metrics Dashboard
   =================================== */
.metrics-section {
    background: var(--color-bg-primary);
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.metrics-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(1, 118, 211, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.metric-card {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 2px solid var(--color-border);
    transition: all var(--transition-base);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(1, 118, 211, 0.15), transparent);
    transition: left 0.5s ease;
}

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

.metric-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(1, 118, 211, 0.25);
}

.metric-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

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

.metric-card:nth-child(2) .metric-icon {
    animation-delay: 0.5s;
}

.metric-card:nth-child(3) .metric-icon {
    animation-delay: 1s;
}

.metric-card:nth-child(4) .metric-icon {
    animation-delay: 1.5s;
}

.metric-value {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-mono);
}

.metric-label {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================
   Certifications Section
   ================================ */

.certifications-section {
    background: var(--color-bg-primary);
    padding: var(--spacing-2xl) 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.cert-card {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.cert-card:hover::before {
    transform: scaleY(1);
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(1, 118, 211, 0.2);
}

.cert-card.cert-learning {
    border-color: var(--color-accent);
}

.cert-card.cert-learning::before {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
}

.cert-card.cert-learning:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(144, 80, 233, 0.2);
}

.cert-badge {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 12px rgba(1, 118, 211, 0.3);
}

.cert-badge.learning {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    box-shadow: 0 4px 12px rgba(144, 80, 233, 0.3);
}

.cert-badge svg {
    width: 40px;
    height: 40px;
}

.cert-content {
    flex: 1;
}

.cert-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.cert-issuer {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cert-date {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    display: block;
}

.cert-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.learning-topics {
    margin: var(--spacing-md) 0;
}

.learning-topics h4 {
    font-size: 0.9rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.learning-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.learning-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(144, 80, 233, 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(144, 80, 233, 0.2);
    transition: all var(--transition-base);
}

.learning-tag:hover {
    background: rgba(144, 80, 233, 0.2);
    transform: translateY(-2px);
}

.cert-verify-link,
.trailhead-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-primary);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

.cert-verify-link svg,
.trailhead-link svg {
    width: 16px;
    height: 16px;
}

.cert-verify-link:hover,
.trailhead-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(1, 118, 211, 0.3);
}

.trailhead-link {
    background: rgba(144, 80, 233, 0.1);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.trailhead-link:hover {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 4px 12px rgba(144, 80, 233, 0.3);
}

/* ===================================
   Skills Constellation
   ================================ */

.constellation-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-base);
}

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

.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(1, 118, 211, 0.3);
}

/* ===================================
   Skills Constellation
   ================================ */
.skills-viz-section {
    background: var(--color-bg-secondary);
    overflow: hidden;
}

.constellation-wrapper {
    position: relative;
    width: 100%;
    height: 600px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    border: 2px solid var(--color-border);
    overflow: hidden;
}

#skillsConstellation {
    width: 100%;
    height: 100%;
    cursor: grab;
}

#skillsConstellation:active {
    cursor: grabbing;
}

.constellation-legend {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

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

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid;
}

.legend-dot.salesforce {
    background: #0176D3;
    border-color: #0176D3;
    box-shadow: 0 0 10px rgba(1, 118, 211, 0.6);
}

.legend-dot.frontend {
    background: #9050E9;
    border-color: #9050E9;
    box-shadow: 0 0 10px rgba(144, 80, 233, 0.6);
}

.legend-dot.backend {
    background: #2E844A;
    border-color: #2E844A;
    box-shadow: 0 0 10px rgba(46, 132, 74, 0.6);
}

.legend-dot.tools {
    background: #FFB75D;
    border-color: #FFB75D;
    box-shadow: 0 0 10px rgba(255, 183, 93, 0.6);
}

.constellation-tooltip {
    position: absolute;
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    font-weight: 600;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
    white-space: nowrap;
}

.constellation-tooltip.active {
    opacity: 1;
}

/* ===================================
   About Section
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-intro {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.highlight-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

.highlight-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.highlight-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.highlight-card p {
    font-size: 0.875rem;
    margin: 0;
}

.about-expertise {
    position: sticky;
    top: 100px;
}

.expertise-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

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

.expertise-card {
    background: linear-gradient(135deg, rgba(1, 118, 211, 0.08) 0%, rgba(144, 80, 233, 0.08) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.dark .expertise-card {
    background: linear-gradient(135deg, rgba(27, 150, 255, 0.12) 0%, rgba(144, 80, 233, 0.12) 100%);
    border: 1px solid rgba(27, 150, 255, 0.25);
}

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

.expertise-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.expertise-card h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.expertise-card ul {
    list-style: none;
}

.expertise-card li {
    padding: 0.25rem 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.expertise-card li::before {
    content: '▸';
    color: var(--color-primary);
    margin-right: var(--spacing-xs);
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.skill-category {
    background: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.skill-category:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-2xl);
}

.skill-category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.skill-icon {
    font-size: 1.75rem;
}

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

.skill-bar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9375rem;
    font-weight: 500;
}

.skill-info span:first-child {
    color: var(--color-text-primary);
}

.skill-info span:last-child {
    color: var(--color-primary);
}

.skill-progress {
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease-out;
    position: relative;
    overflow: hidden;
}

.skill-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===================================
   Experience Section (Timeline)
   =================================== */
.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    box-shadow: 0 0 10px rgba(1, 118, 211, 0.4);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
}

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

.timeline-dot {
    position: absolute;
    left: calc(-1 * var(--spacing-xl) - 9px);
    top: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: 4px solid var(--color-bg-primary);
    z-index: 1;
    box-shadow: 0 0 0 4px var(--color-bg-secondary), 0 0 15px rgba(1, 118, 211, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 4px var(--color-bg-secondary), 0 0 15px rgba(1, 118, 211, 0.5); }
    50% { box-shadow: 0 0 0 4px var(--color-bg-secondary), 0 0 20px rgba(1, 118, 211, 0.7); }
}

.timeline-content {
    background: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.timeline-content:hover {
    transform: translateX(10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-2xl);
}

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

.timeline-header h3 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.timeline-header h4 {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 600;
}

.timeline-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.timeline-date {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-location {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

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

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    padding: 0.375rem 0.75rem;
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

/* ===================================
   Projects Section
   =================================== */
.projects-section {
    background: var(--color-bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-2xl);
}

.project-status {
    margin-bottom: var(--spacing-md);
}

.status-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-production {
    background: rgba(46, 132, 74, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(46, 132, 74, 0.35);
}

.status-active {
    background: rgba(1, 118, 211, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(1, 118, 211, 0.35);
}

.status-completed {
    background: rgba(144, 80, 233, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(144, 80, 233, 0.35);
}

.status-archived {
    background: rgba(156, 163, 175, 0.15);
    color: #9CA3AF;
    border: 1px solid rgba(156, 163, 175, 0.35);
}

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

.project-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.project-icon svg {
    width: 24px;
    height: 24px;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.project-category {
    font-size: 0.9375rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.project-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

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

.project-metrics h4,
.project-features h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.project-metrics ul,
.project-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.project-metrics li,
.project-features li {
    padding-left: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    position: relative;
}

.project-metrics li::before,
.project-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.25rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.tech-tag {
    padding: 0.375rem 0.875rem;
    background: linear-gradient(135deg, rgba(1, 118, 211, 0.1) 0%, rgba(144, 80, 233, 0.1) 100%);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1px solid rgba(1, 118, 211, 0.25);
    transition: all var(--transition-fast);
}

.dark .tech-tag {
    background: linear-gradient(135deg, rgba(27, 150, 255, 0.15) 0%, rgba(144, 80, 233, 0.12) 100%);
    border: 1px solid rgba(27, 150, 255, 0.3);
}

.tech-tag:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.project-repo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.project-repo svg {
    width: 18px;
    height: 18px;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

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

.contact-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-card h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-card p,
.contact-card a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

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

.contact-social {
    margin-top: var(--spacing-md);
}

.contact-social h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

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

.social-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.social-btn:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

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

.social-btn span {
    font-weight: 600;
}

/* Contact Form */
.contact-form {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.char-count {
    position: absolute;
    bottom: -1.5rem;
    right: 0;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.btn-submit {
    width: 100%;
    margin-top: var(--spacing-md);
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

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

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

/* ===================================
   Responsive Design
   =================================== */
/* ===================================
   3D Tilt Cards
   =================================== */
.tilt-card {
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

.tilt-card:hover {
    transform: perspective(1000px) rotateX(var(--rotate-x, 0deg)) rotateY(var(--rotate-y, 0deg)) scale(1.02);
}

.tilt-card-content {
    transform: translateZ(20px);
}

.tilt-card-shine {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.2), transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: inherit;
}

.tilt-card:hover .tilt-card-shine {
    opacity: 1;
}

@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-expertise {
        position: static;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

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

/* Tablet and Mobile */
@media (max-width: 768px) {
    /* Performance optimization - reduce animations on mobile */
    * {
        animation-duration: 0.3s !important;
    }
    
    /* Disable expensive animations on mobile */
    .metric-icon {
        animation: none;
    }
    
    .metric-card:hover,
    .skill-category:hover,
    .timeline-content:hover,
    .project-card:hover,
    .expertise-card:hover {
        transform: none;
    }
    
    .metric-card::before,
    .cert-card::before {
        display: none;
    }
    
    /* Certifications responsive */
    .cert-card {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .cert-badge {
        margin: 0 auto;
    }
    
    .constellation-filters {
        gap: var(--spacing-xs);
    }
    
    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.85rem;
    }
    /* Prevent horizontal overflow */
    * {
        max-width: 100%;
    }
    
    /* Reduce section padding for mobile */
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
        min-height: auto;
    }
    
    /* Better container padding */
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    /* Improve touch targets - minimum 44x44px */
    .btn {
        min-height: 44px;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .nav-link {
        padding: var(--spacing-md) 0;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .social-link {
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Better typography for mobile */
    .hero-greeting {
        font-size: 1rem;
    }
    
    .hero-description {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    /* Optimize code snippet for mobile */
    .code-content {
        font-size: 0.75rem;
        overflow-x: auto;
    }
    
    /* Don't add padding to visual-card - it cuts off the window chrome */
    /* .visual-card padding removed to show code header properly */
    
    /* Make code snippet wider on larger mobile screens */
    .hero-visual {
        max-width: 90%;
    }
    
    .visual-card {
        width: 100%;
    }
    
    /* Better spacing for highlights */
    .about-highlights {
        gap: var(--spacing-md);
    }
    
    .highlight-card {
        padding: var(--spacing-md);
    }
    
    /* Optimize expertise cards */
    .expertise-card {
        padding: var(--spacing-md);
        text-align: center;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .expertise-icon {
        font-size: 2.5rem;
    }
    
    /* Better timeline spacing */
    .timeline-item {
        padding-left: var(--spacing-md);
    }
    
    .timeline-content {
        padding: var(--spacing-md);
    }
    
    .timeline-tags {
        gap: var(--spacing-xs);
    }
    
    .tag {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
    }
    
    /* Optimize project cards */
    .project-card {
        padding: var(--spacing-md);
    }
    
    .project-metrics ul,
    .project-features ul {
        font-size: 0.875rem;
    }
    
    .tech-tag {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
    }
    
    /* Better contact form */
    .contact-form input,
    .contact-form textarea,
    .contact-form select {
        min-height: 44px;
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
    
    .contact-form textarea {
        min-height: 120px;
    }
    
    /* Footer optimization */
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        text-align: center;
        font-size: 0.875rem;
    }
    
    /* Scroll to top button */
    .scroll-to-top {
        bottom: 20px !important;
        right: 20px !important;
        width: 44px !important;
        height: 44px !important;
    }
    
    /* Add backdrop for mobile menu */
    .mobile-menu-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.6);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
        z-index: 998;
        backdrop-filter: blur(4px);
    }
    
    .mobile-menu-backdrop.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* Prevent body scroll when menu is open */
    body.menu-open {
        overflow: hidden;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .metric-value {
        font-size: 2.5rem;
    }
    
    .constellation-wrapper {
        height: 400px;
    }
    
    .constellation-legend {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .legend-item {
        font-size: 0.75rem;
    }
    
    html {
        font-size: 14px;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-bg-primary);
        flex-direction: column;
        padding: var(--spacing-3xl) var(--spacing-lg);
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-base);
        z-index: 999;
        justify-content: flex-start;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero-name {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: var(--spacing-lg);
    }
    
    .timeline-header {
        flex-direction: column;
    }
    
    .timeline-meta {
        align-items: flex-start;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Large Mobile Devices (iPhone Pro Max, etc.) */
@media (min-width: 480px) and (max-width: 768px) {
    /* Code snippet should be even wider on larger phones */
    .hero-visual {
        max-width: 95%;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    /* Code snippet stays reasonable width on small screens */
    .hero-visual {
        max-width: 85%;
    }
    
    /* Disable all hover effects on small mobile for performance */
    .tilt-card,
    .project-card,
    .cert-card,
    .expertise-card,
    .skill-category,
    .timeline-content {
        transform: none !important;
        transition: none !important;
    }
    
    /* Reduce animation complexity */
    [data-aos] {
        transition: opacity 0.3s ease !important;
        transform: none !important;
    }
    
    /* Further reduce font sizes */
    html {
        font-size: 13px;
    }
    
    .hero-name {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Reduce section padding further */
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
    
    /* Optimize metric cards */
    .metric-card {
        padding: var(--spacing-md);
    }
    
    .metric-value {
        font-size: 2rem;
    }
    
    .metric-label {
        font-size: 0.875rem;
    }
    
    /* Smaller constellation */
    .constellation-wrapper {
        height: 300px;
    }
    
    /* Compact project cards */
    .project-header {
        gap: var(--spacing-sm);
    }
    
    .project-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }
    
    /* Better spacing for small screens */
    .about-highlights {
        gap: var(--spacing-sm);
    }
    
    .expertise-grid {
        gap: var(--spacing-sm);
    }
    
    /* Optimize scroll indicator */
    .scroll-indicator {
        display: none;
    }
    
    /* Compact footer */
    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }
    
    .footer-bottom p {
        font-size: 0.8rem;
        margin-bottom: var(--spacing-xs);
    }
}

/* Extra small devices */
@media (max-width: 360px) {
    html {
        font-size: 12px;
    }
    
    .hero-name {
        font-size: 1.75rem;
    }
    
    .nav-menu {
        width: 85%;
    }
    
    .metric-value {
        font-size: 1.75rem;
    }
}

/* ===================================
   Animations
   =================================== */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-down"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* Delay variants */
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }
[data-aos-delay="500"] { transition-delay: 0.5s; }

/* ===================================
   Loading State
   =================================== */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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