/* CSS Reset and Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light theme colors */
    --background: #f8fafc;
    --foreground: #1e293b;
    --muted: #f1f5f9;
    --muted-foreground: #64748b;
    --border: #e2e8f0;
    --card: #ffffff;
    --card-border: #e2e8f0;
    --primary: #f59e0b;
    --primary-foreground: #ffffff;
    --secondary: #f1f5f9;
    --secondary-foreground: #1e293b;
    --accent: #f1f5f9;
    --accent-foreground: #1e293b;
    
    /* Gradients */
    --founder-gradient: linear-gradient(135deg, #f59e0b, #ef4444);
    --developer-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --coach-gradient: linear-gradient(135deg, #10b981, #14b8a6);
    --educator-gradient: linear-gradient(135deg, #8b5cf6, #ec4899);
    --ai-gradient: linear-gradient(135deg, #8b5cf6, #ec4899);
    --fullstack-gradient: linear-gradient(135deg, #3b82f6, #06b6d4);
    --mobile-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --web-gradient: linear-gradient(135deg, #10b981, #14b8a6);
    --backend-gradient: linear-gradient(135deg, #f59e0b, #ef4444);
    --grativerse-gradient: linear-gradient(135deg, #ec4899, #f43f5e);
    --ultimately-gradient: linear-gradient(135deg, #f59e0b, #f97316);
    --professional-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --linkedin-gradient: linear-gradient(135deg, #0077b5, #005582);
    --github-gradient: linear-gradient(135deg, #24292e, #000000);
    --coaching-gradient: linear-gradient(135deg, #10b981, #14b8a6);
    --speaking-gradient: linear-gradient(135deg, #f59e0b, #ef4444);
    
    /* Typography */
    --font-family: 'Inter', 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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease-in-out;
}

/* Dark theme */
[data-theme="dark"] {
    --background: #0f172a;
    --foreground: #f1f5f9;
    --muted: #1e293b;
    --muted-foreground: #94a3b8;
    --border: #334155;
    --card: #1e293b;
    --card-border: #475569;
    --secondary: #334155;
    --secondary-foreground: #f1f5f9;
    --accent: #1e293b;
    --accent-foreground: #f1f5f9;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* Base styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: 1000;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-3);
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p { margin-bottom: var(--spacing-4); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Icon container rules - ensure all icons maintain 1:1 aspect ratio */
[class*="-icon"] svg,
.social-link svg {
    display: block;
}

/* Section styles */
section {
    padding: var(--spacing-20) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--muted-foreground);
    max-width: 48rem;
    margin: 0 auto;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--background) 0%, var(--muted) 100%);
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 64rem;
}

.hero-image {
    width: 12rem;
    height: 12rem;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    border: 4px solid rgba(245, 158, 11, 0.1);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
}

.hero-subtitle {
    margin-bottom: var(--spacing-8);
}

.role-text {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-4);
}

.role-highlight {
    color: var(--primary);
    transition: var(--transition);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--muted-foreground);
    max-width: 32rem;
    margin: 0 auto;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    justify-content: center;
    margin-bottom: var(--spacing-12);
}

.hero-buttons .btn {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-6);
    justify-content: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    aspect-ratio: 1/1;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--muted-foreground);
    text-decoration: none;
    transition: var(--transition);
    flex-shrink: 0;
}

.social-link:hover {
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.scroll-down {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
    background: none;
    border: none;
    color: var(--muted-foreground);
    cursor: pointer;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Work Section */
.work-section {
    background: var(--muted);
}

.work-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: start;
}

.roles-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.role-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    cursor: pointer;
    transition: var(--transition);
}

.role-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.role-card.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary);
}

.role-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    color: white;
    flex-shrink: 0;
}

.founder-icon { background: var(--founder-gradient); }
.developer-icon { background: var(--developer-gradient); }
.coach-icon { background: var(--coach-gradient); }
.educator-icon { background: var(--educator-gradient); }

.role-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.role-info p {
    color: var(--muted-foreground);
    font-size: var(--font-size-sm);
    margin: 0;
}

.role-arrow {
    margin-left: auto;
    color: var(--muted-foreground);
    transition: var(--transition);
}

.role-card.active .role-arrow {
    transform: rotate(90deg);
}

.role-details {
    position: relative;
}

.role-detail {
    display: none;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
}

.role-detail.active {
    display: block;
}

.detail-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.detail-header h3 {
    margin: 0;
    line-height: 1;
}

.detail-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    color: white;
    flex-shrink: 0;
}

.detail-list {
    list-style: none;
    margin-bottom: var(--spacing-8);
}

.detail-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

.detail-list li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background: var(--primary);
    border-radius: 50%;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.project-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-6);
}

.project-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.project-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    aspect-ratio: 1/1;
    border-radius: var(--radius);
    color: white;
    flex-shrink: 0;
}

.grativerse-icon { background: var(--grativerse-gradient); }
.ultimately-icon { background: var(--ultimately-gradient); }

.project-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin: 0;
}

.project-tags {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.tag {
    background: var(--secondary);
    color: var(--secondary-foreground);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.project-description {
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-4);
}

.project-details {
    color: var(--muted-foreground);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-6);
}

.project-btn {
    width: 100%;
    background: var(--primary);
    color: var(--primary-foreground);
    border: none;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.project-btn:hover {
    opacity: 0.9;
}

.projects-footer {
    text-align: center;
}

.projects-note {
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-6);
}

/* Skills Section */
.skills-section {
    background: var(--muted);
}

.skills-content {
    max-width: 80rem;
    margin: 0 auto;
}

.subsection-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-8);
    color: var(--primary);
}

.subsection-header h3 {
    margin: 0;
    line-height: 1;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-16);
}

.skill-category {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    color: white;
    margin: 0 auto var(--spacing-4);
    flex-shrink: 0;
}

.fullstack-icon { background: var(--fullstack-gradient); }
.ai-icon { background: var(--ai-gradient); }
.mobile-icon { background: var(--mobile-gradient); }
.web-icon { background: var(--web-gradient); }
.backend-icon { background: var(--backend-gradient); }

.skill-category h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    justify-content: center;
}

.skill-tag {
    background: var(--accent);
    color: var(--accent-foreground);
    border: 1px solid var(--border);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-12);
}

.cert-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cert-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.cert-header h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.cert-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    aspect-ratio: 1/1;
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--radius);
    color: var(--primary);
    flex-shrink: 0;
}

.cert-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--muted-foreground);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-3);
}

.cert-card p {
    color: var(--muted-foreground);
    font-size: var(--font-size-sm);
    margin: 0;
}

.skills-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    color: var(--muted-foreground);
    text-align: center;
}

.footer-icon {
    color: var(--primary);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-12);
}

.contact-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    cursor: pointer;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-card > div:first-child {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    color: white;
    flex-shrink: 0;
}

.professional-icon { background: var(--professional-gradient); }
.linkedin-icon { background: var(--linkedin-gradient); }
.github-icon { background: var(--github-gradient); }
.coaching-icon { background: var(--coaching-gradient); }
.speaking-icon { background: var(--speaking-gradient); }

.contact-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.contact-info p {
    color: var(--muted-foreground);
    font-size: var(--font-size-sm);
    margin: 0;
}

.contact-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--primary);
    font-weight: 500;
}

.contact-cta {
    max-width: 48rem;
    margin: 0 auto;
}

.cta-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    text-align: center;
}

.cta-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    color: var(--primary);
}

.cta-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    line-height: 1;
}

.cta-card p {
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-6);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--muted);
    padding: var(--spacing-8) 0;
    text-align: center;
}

.footer p {
    color: var(--muted-foreground);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .work-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .role-text {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    section {
        padding: var(--spacing-16) 0;
    }
    
    .hero-image {
        width: 10rem;
        height: 10rem;
    }
    
    .role-card {
        padding: var(--spacing-4);
    }
    
    .role-detail {
        padding: var(--spacing-6);
    }
    
    .project-content {
        padding: var(--spacing-4);
    }
    
    .skill-category {
        padding: var(--spacing-4);
    }
    
    .contact-card {
        padding: var(--spacing-4);
    }
    
    .cta-card {
        padding: var(--spacing-6);
    }
}

/* Smooth animations */
.role-highlight {
    display: inline-block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Focus styles for accessibility */
button:focus,
.contact-card:focus,
.role-card:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .theme-toggle,
    .scroll-down,
    .hero-buttons,
    .social-links,
    button {
        display: none;
    }
    
    body {
        font-size: 12px;
        line-height: 1.4;
    }
    
    section {
        padding: 1rem 0;
        break-inside: avoid;
    }
}