:root {
    /* Light Theme (Retained for structure, but focus is on Dark) */
    --color-bg: #F0F4F8;
    --color-surface: #FFFFFF;
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748B;
    --color-accent: #06b6d4;
    /* Neon Cyan */
    --color-accent-hover: #0891b2;
    --color-secondary: #8b5cf6;
    /* Electric Purple */
    --color-border: #E2E8F0;
    --color-shadow: rgba(148, 163, 184, 0.1);
    --color-glass: rgba(255, 255, 255, 0.7);
    --color-glass-border: rgba(255, 255, 255, 0.5);

    /* Neon Glows */
    --glow-primary: 0 0 20px rgba(6, 182, 212, 0.5);
    --glow-secondary: 0 0 20px rgba(139, 92, 246, 0.5);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 3rem;
    /* Bolder, Larger */
    --font-size-5xl: 4rem;
    --font-size-6xl: 5rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

html[data-theme="dark"] {
    --color-bg: #0B0F19;
    /* Deep Void Blue/Black */
    --color-surface: rgba(30, 41, 59, 0.4);
    /* Glass surface */
    --color-text-primary: #F8FAFC;
    --color-text-secondary: #94A3B8;
    --color-text-tertiary: #64748B;
    --color-accent: #22d3ee;
    /* Bright Neon Cyan */
    --color-accent-hover: #67e8f9;
    --color-secondary: #d946ef;
    /* Bright Neon Purple */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-shadow: rgba(0, 0, 0, 0.5);
    --color-glass: rgba(11, 15, 25, 0.8);
    --color-glass-border: rgba(255, 255, 255, 0.1);

    --glow-primary: 0 0 25px rgba(34, 211, 238, 0.3);
    --glow-secondary: 0 0 25px rgba(217, 70, 239, 0.3);
}

/* Page Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 25%);
    pointer-events: none;
    z-index: 0;
}

html[data-theme="dark"] body::before {
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 100% 100%,
        100% 100%,
        50px 50px,
        50px 50px;
    background-position: 0 0,
        0 0,
        -1px -1px,
        -1px -1px;
}

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

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
    position: relative;
}

/* Ensure content appears above background */
.nav,
section {
    position: relative;
    z-index: 1;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-glass-border);
    box-shadow: 0 4px 6px -1px var(--color-shadow);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.7;
}

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--color-surface);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    border: 1px solid var(--color-border);
}

.theme-toggle:hover {
    background: var(--color-border);
    color: var(--color-text-primary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

html[data-theme="light"] .moon-icon {
    display: none;
}

html[data-theme="light"] .sun-icon {
    display: block;
}

html[data-theme="dark"] .sun-icon {
    display: none;
}

html[data-theme="dark"] .moon-icon {
    display: block;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Sections */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

/* Animated Background */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    bottom: -5%;
    right: -5%;
    animation-delay: 5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 40%;
    right: 20%;
    animation-delay: 10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(50px, -50px) scale(1.1);
    }

    50% {
        transform: translate(-30px, 30px) scale(0.9);
    }

    75% {
        transform: translate(30px, 50px) scale(1.05);
    }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.03;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 7rem);
    /* Larger */
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.title-line {
    display: inline-block;
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    animation: fadeIn 1s ease-out 0.3s both;
}

/* Hero Highlights */
.hero-highlights {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 1s ease-out 0.5s both;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    backdrop-filter: blur(8px);
}

.highlight-item:hover {
    transform: translateY(-2px);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
    background: rgba(30, 41, 59, 0.6);
}

.highlight-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
}

/* Tech Stack */
.tech-stack {
    margin-top: var(--spacing-2xl);
    animation: fadeIn 1s ease-out 0.7s both;
}

.tech-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

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

.tech-icon {
    padding: 0.75rem 1.25rem;
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
    cursor: pointer;
    backdrop-filter: blur(8px);
    display: flex;
    /* Ensure centering if icons are added later */
    align-items: center;
    justify-content: center;
}

.tech-icon:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    background: rgba(30, 41, 59, 0.6);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
    animation: fadeIn 1s ease-out 0.6s both;
}

.hero-scroll {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-3xl);
}

.hero-scroll svg {
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(4px);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    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, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn svg {
    position: relative;
    z-index: 1;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
    color: white;
    border: 1px solid transparent;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
    /* Neon Cyan Shadow */
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(6, 182, 212, 0.6), 0 0 10px rgba(139, 92, 246, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
    transform: translateY(-2px);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.about-stats {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.stat h3 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Skills Section */
.skills {
    background-color: var(--color-surface);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

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

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--color-shadow);
    border-color: var(--color-accent);
}

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

.category-icon {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.skill-category h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

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

.tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-2xl);
}

.timeline-marker {
    position: absolute;
    left: -33px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-accent);
    border: 3px solid var(--color-bg);
}

.timeline-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-xl);
}

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

.timeline-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.company {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.period {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    background: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    white-space: nowrap;
}

.achievements {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.achievements li {
    padding-left: var(--spacing-md);
    position: relative;
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

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

/* Projects Section */
.projects {
    background-color: transparent;
    /* Remove solid background */
}

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

.project-card {
    background: rgba(30, 41, 59, 0.4);
    /* Glassmorphism Base */
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: var(--spacing-xl);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.project-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5), 0 0 20px rgba(6, 182, 212, 0.2);
    /* Neon Glow */
    border-color: var(--color-accent);
}

.project-card::after {
    /* Spotlight effect adjusted logic in JS, simplified CSS here for safety */
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background: radial-gradient(600px circle at var(--mouse-x) var(--mouse-y), rgba(6, 182, 212, 0.1), transparent 40%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
    z-index: 2;
}

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

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

.project-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    line-height: 1.3;
    flex: 1;
}

.project-tag {
    background: var(--color-accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    white-space: nowrap;
}

.project-preview {
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.project-preview>p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

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

.project-tech-preview span {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    background: var(--color-surface);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.project-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    font-weight: 500;
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

/* Project Modal Specific Styles */
.modal-project {
    max-width: 800px;
    padding: var(--spacing-2xl);
    overflow-y: auto;
}

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

.project-modal-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    flex: 1;
}

.project-modal-body {
    margin-bottom: var(--spacing-xl);
}

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

.project-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.project-section p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.project-modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.project-modal-tech span {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-weight: 500;
}

/* Certifications Section */
.cert-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.cert-card {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.cert-card:hover {
    border-color: var(--color-secondary);
    /* Purple Glow */
    transform: translateY(-4px);
    box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.3);
}

.cert-icon {
    flex-shrink: 0;
    color: var(--color-accent);
}

.cert-content {
    flex: 1;
}

.cert-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cert-content p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.cert-provider {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.cert-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    font-weight: 500;
    margin-top: var(--spacing-sm);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--color-surface);
    border-radius: 16px;
    overflow: hidden;
    animation: slideUp 0.4s ease;
}

@keyframes slideUpModal {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content img {
    width: 100%;
    height: auto;
    display: block;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 1;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

/* Education Section */
.education {
    background-color: var(--color-surface);
}

/* Upcoming Plans Section */
.upcoming-plans {
    background-color: var(--color-bg);
}

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

.plan-card {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    height: 100%;
    backdrop-filter: blur(10px);
}

.plan-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5), 0 0 20px rgba(6, 182, 212, 0.15);
    border-color: var(--color-accent);
}

.plan-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 12px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.plan-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.plan-content p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.plan-status {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 6px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Education Section */
.education {
    background-color: var(--color-surface);
}

.education-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-xl);
}

.education-item h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.institution {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.education-item .period {
    display: inline-block;
    margin-top: var(--spacing-xs);
}

/* Contact Section */
.contact {
    position: relative;
    overflow: hidden;
    color: white;
}

.contact-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.contact-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    animation: gradientShift 15s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.contact .container {
    position: relative;
    z-index: 1;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.contact-text h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    color: white;
}

.contact-text p {
    font-size: var(--font-size-lg);
    opacity: 0.95;
    line-height: 1.6;
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    color: white;
    text-decoration: none;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateX(8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    flex-shrink: 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-label {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-size: var(--font-size-base);
    font-weight: 500;
}

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

.footer p {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .section-title {
        font-size: var(--font-size-3xl);
    }

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

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

    .gradient-orb {
        filter: blur(60px);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }

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

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

    section {
        padding: var(--spacing-2xl) 0;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .hero-highlights {
        gap: var(--spacing-sm);
    }

    .highlight-item {
        flex: 1 1 100%;
    }

    .tech-icons {
        gap: 0.5rem;
    }

    .tech-icon {
        padding: 0.5rem 0.875rem;
        font-size: var(--font-size-xs);
    }

    .about-text p {
        font-size: var(--font-size-base);
    }

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

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

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

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

    .timeline-header {
        flex-direction: column;
    }

    .contact-text h2 {
        font-size: var(--font-size-2xl);
    }

    .contact-link {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .contact-icon {
        width: 40px;
        height: 40px;
    }

    .contact-value {
        font-size: var(--font-size-sm);
        word-break: break-word;
    }

    .gradient-orb {
        filter: blur(40px);
        opacity: 0.2;
    }

    .orb-1,
    .orb-2,
    .orb-3 {
        width: 250px;
        height: 250px;
    }

    /* Modal responsive */
    .modal {
        padding: var(--spacing-sm);
    }

    .modal-content {
        max-width: 100%;
        max-height: 85vh;
    }

    .modal-project {
        padding: var(--spacing-lg);
    }

    .project-modal-header h2 {
        font-size: var(--font-size-2xl);
    }

    .modal-close {
        width: 36px;
        height: 36px;
        font-size: 24px;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

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

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

    .timeline-marker {
        left: -24px;
    }

    .project-card,
    .timeline-content,
    .cert-card,
    .education-item {
        padding: var(--spacing-md);
    }

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

    .contact-link:hover {
        transform: translateX(0);
        transform: translateY(-4px);
    }
}

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

/* Print Styles */
@media print {

    .nav,
    .theme-toggle,
    .hero-scroll,
    .hero-cta {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    section {
        page-break-inside: avoid;
    }
}