/* Modern Portfolio CSS - Korykaai */

/* CSS Custom Properties (Variables) */
:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background-primary: #ffffff;
    --background-secondary: #f9fafb;
    --background-dark: #111827;
    --border-color: #e5e7eb;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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;
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --spacing-5xl: 8rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-2xl: 1rem;
    --border-radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark mode variables */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-light: #9ca3af;
        --background-primary: #111827;
        --background-secondary: #1f2937;
        --background-dark: #000000;
        --border-color: #374151;
    }
}

/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

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

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

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

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Improve button touch targets for mobile */
    .btn {
        min-height: 44px;
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

/* Extra small mobile devices - General improvements */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Ensure buttons are touch-friendly */
    .btn {
        min-height: 48px;
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-sm);
    }
    
    /* Improve section spacing */
    section {
        padding: var(--spacing-3xl) 0;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-3xl);
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-full {
    width: 100%;
}

/* Navigation removed - header-less design */

/* Hero Section */
.hero {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
    z-index: -1;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    min-height: 60vh;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-location {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-sm);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

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

.hero-image img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-slow);
    object-fit: cover;
}

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

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-start;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--background-secondary);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-light);
}

.social-links a:hover,
.social-links a:focus {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.social-links a:hover .social-icon,
.social-links a:focus .social-icon {
    fill: white;
}

.social-icon {
    width: 24px;
    height: 24px;
    fill: var(--text-secondary);
    transition: fill var(--transition-fast);
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-3xl) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .hero-location {
        justify-content: center;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Section Styles */
section {
    padding: var(--spacing-5xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -var(--spacing-md);
    left: 50%;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
    transform: translateX(-50%);
}

/* About Section */
.about {
    background-color: var(--background-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-intro {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--background-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-light);
    transition: transform var(--transition-fast);
}

.stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

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

.about-image img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-large);
    object-fit: cover;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.project-card {
    background-color: var(--background-primary);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.project-links {
    display: flex;
    gap: var(--spacing-md);
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    border-radius: var(--border-radius-full);
    color: white;
    transition: all var(--transition-fast);
}

.project-link:hover,
.project-link:focus {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.project-link svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

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

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

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

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--background-secondary);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    border: 1px solid var(--primary-light);
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.skill-category {
    background-color: var(--background-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all var(--transition-fast);
    border: 2px solid var(--border-color);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium), 0 0 20px rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
}

.skill-category-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
}

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

.skill-item {
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-weight: 600;
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-fast);
}

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

/* Current Roles Section */
.current-roles {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-4xl) !important;
    border-top: 2px solid var(--border-color);
}

.current-roles h3 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.role-card {
    background-color: var(--background-primary);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-light);
    border: 2px solid var(--border-color);
    transition: all var(--transition-fast);
}

.role-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), 0 0 20px rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
}

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

.role-header h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.role-card .company-name {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.role-period {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-light);
    font-weight: 500;
}

.role-responsibilities {
    list-style: none;
    padding: 0;
    margin: 0;
}

.role-responsibilities li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.role-responsibilities li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
}

.role-responsibilities li:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .roles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .role-card {
        padding: var(--spacing-lg);
    }
}

/* Core Competencies */
.core-competencies {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
}

.core-competencies h3 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

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

.competency-item {
    padding: var(--spacing-md);
    background-color: var(--background-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    transition: all var(--transition-fast);
    border: 2px solid var(--border-color);
}

.competency-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium), 0 0 15px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

/* Education Section */
.education-section {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
    text-align: center;
}

.education-title {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
}

.education-item {
    background-color: var(--background-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-light);
    max-width: 500px;
    margin: 0 auto;
    border: 2px solid var(--border-color);
    transition: all var(--transition-fast);
}

.education-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium), 0 0 15px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

.education-item h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.education-item p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Work Experience Link */
.work-experience-link {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

/* Company & Products Section */
.company {
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.company::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="company-grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="%23e5e7eb" stroke-width="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23company-grid)"/></svg>');
    opacity: 0.3;
    z-index: -1;
}

.company-intro {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.company-name {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.company-role {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.company-website {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.company-website:hover,
.company-website:focus {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.website-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.company-description {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-4xl);
}

.product-card {
    background: var(--background-primary);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    transform-origin: left;
}

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

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 25px rgba(99, 102, 241, 0.4);
    border-color: var(--primary-color);
}

.product-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, var(--background-primary) 0%, rgba(99, 102, 241, 0.02) 100%);
}

.product-card.featured::before {
    transform: scaleX(1);
}

.product-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.product-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0;
}

.product-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-description {
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.feature-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--background-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius-full);
    border: 1px solid var(--border-color);
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
    background: transparent;
}

.product-link:hover,
.product-link:focus {
    background: var(--primary-color);
    color: white;
    transform: translateX(4px);
}

.link-icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: transform var(--transition-fast);
}

.product-link:hover .link-icon {
    transform: translateX(2px);
}

/* More Products Section */
.more-products {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--border-radius-2xl);
    border: 2px dashed var(--primary-light);
}

.more-products-text {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.more-products-text strong {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
}

.company-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .company-name {
        font-size: var(--font-size-3xl);
    }
    
    .company-role {
        font-size: var(--font-size-lg);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .product-card {
        padding: var(--spacing-xl);
    }
    
    .product-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .more-products {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    .company-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .company-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Contact Section */
.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.contact-info h3 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--background-secondary);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
    text-decoration: none;
    color: var(--text-primary);
}

.contact-method:hover,
.contact-method:focus {
    background-color: var(--primary-color);
    color: white;
    transform: translateX(8px);
}

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

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

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: all var(--transition-fast);
    background-color: var(--background-primary);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-error {
    display: block;
    color: #ef4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

@media (max-width: 768px) {
    .contact-info {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
}

/* Footer */
.footer {
    background-color: var(--background-dark);
    color: var(--text-light);
    padding: var(--spacing-2xl) 0;
}

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

.footer-info p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
}

.footer-social a:hover,
.footer-social a:focus {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-social .social-icon {
    width: 20px;
    height: 20px;
    fill: var(--text-light);
}

.footer-social a:hover .social-icon,
.footer-social a:focus .social-icon {
    fill: white;
}

@media (max-width: 768px) {
    .footer {
        padding: var(--spacing-xl) 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-info p {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .footer-social {
        justify-content: center;
    }
}

/* Extra small mobile devices - Footer */
@media (max-width: 480px) {
    .footer {
        padding: var(--spacing-lg) 0;
    }
    
    .footer-content {
        gap: var(--spacing-md);
    }
    
    .footer-info p {
        font-size: var(--font-size-xs);
        line-height: var(--line-height-relaxed);
    }
    
    .footer-social {
        gap: var(--spacing-sm);
    }
    
    .footer-social a {
        width: 36px;
        height: 36px;
    }
    
    .footer-social .social-icon {
        width: 18px;
        height: 18px;
    }
}

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

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

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .social-links,
    .contact-form,
    .footer-social {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: black;
        background: white;
    }
    
    .hero {
        padding: 0;
        background: white;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .section-title {
        font-size: 18pt;
        margin-bottom: var(--spacing-lg);
    }
    
    .project-card,
    .skill-category {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Tools Section Styles */
.tools {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
    color: var(--text-primary);
    position: relative;
}

.tools::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.tools-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.tools-intro {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: var(--spacing-lg) auto 0;
    line-height: var(--line-height-relaxed);
}

.tools-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    max-width: 800px;
    margin: 0 auto;
}

.tool-wrapper {
    display: flex;
    justify-content: center;
}

.tool-card {
    background: var(--background-primary);
    border-radius: 16px;
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-large);
    border: 2px solid var(--border-color);
    transition: all var(--transition-fast);
    width: 100%;
    max-width: 700px;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 25px rgba(99, 102, 241, 0.4);
    border-color: var(--primary-color);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.tool-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

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

.tool-info {
    flex: 1;
}

.tool-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.tool-description {
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--line-height-relaxed);
}

.tool-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.input-section,
.output-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.input-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-textarea {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    resize: vertical;
    transition: all var(--transition-fast);
    background: var(--background-secondary);
    color: var(--text-primary);
}

.tool-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
    background: var(--background-primary);
}

.tool-textarea.output {
    background: var(--background-primary);
    color: var(--text-secondary);
}

.tool-textarea::placeholder {
    color: var(--text-light);
    font-style: italic;
}

.tool-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
    padding: var(--spacing-lg) 0;
}

.tool-actions .btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
    border-radius: 10px;
    transition: all var(--transition-fast);
    min-width: 120px;
    justify-content: center;
}

.tool-actions .btn svg {
    width: 16px;
    height: 16px;
}

.tool-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.1);
}

.tool-status {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 10px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
    transition: all var(--transition-fast);
}

.tool-status.success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    color: var(--accent-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.tool-status.error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Color Tool Specific Styles */
.color-input-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.color-input-group {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.color-picker {
    width: 80px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: none;
}

.color-picker:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hex-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background: var(--background-secondary);
    color: var(--text-primary);
}

.hex-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
    background: var(--background-primary);
}

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

.color-palette {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--background-secondary);
    border-radius: 12px;
    border: 2px dashed var(--border-color);
    min-height: 120px;
}

.palette-placeholder {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
    text-align: center;
}

.palette-placeholder svg {
    width: 32px;
    height: 32px;
    opacity: 0.5;
}

.palette-placeholder p {
    margin: 0;
    font-size: var(--font-size-sm);
    font-style: italic;
}

.color-swatch {
    aspect-ratio: 1;
    border-radius: 12px;
    display: flex;
    align-items: end;
    justify-content: center;
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--border-color);
}

.color-swatch:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.color-swatch .color-code {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: var(--font-size-xs);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

/* Tools Footer */
.tools-footer {
    margin-top: var(--spacing-4xl);
    text-align: center;
}

.tools-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--background-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.feature-badge svg {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
}

.tools-cta {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    margin: 0;
    line-height: var(--line-height-relaxed);
}

.tools-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.tools-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .tools {
        padding: var(--spacing-3xl) 0;
    }
    
    .tools-container {
        padding: 0 var(--spacing-md);
        max-width: 100%;
        gap: var(--spacing-2xl);
    }
    
    .tool-wrapper {
        width: 100%;
        padding: 0;
    }
    
    .tool-card {
        padding: var(--spacing-xl);
        margin: 0;
        width: 100%;
        max-width: none;
        border-radius: 12px;
    }
    
    .tool-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
    
    .tool-icon {
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }
    
    .tool-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .tool-title {
        font-size: var(--font-size-lg);
    }
    
    .tool-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md) 0;
    }
    
    .tool-actions .btn {
        width: 100%;
        min-width: auto;
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .tool-textarea {
        font-size: var(--font-size-xs);
        padding: var(--spacing-md);
    }
    
    .color-input-group {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .color-picker {
        width: 100%;
        height: 50px;
    }
    
    .hex-input {
        width: 100%;
        text-align: center;
    }
    
    .color-palette {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .tools-features {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .feature-badge {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .tools-cta {
        font-size: var(--font-size-sm);
        padding: 0 var(--spacing-md);
    }
}

/* Extra Small Mobile Devices (iPhone 14 Pro and similar) */
@media (max-width: 480px) {
    .tools {
        padding: var(--spacing-2xl) 0;
    }
    
    .tools-container {
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-xl);
    }
    
    .tool-card {
        padding: var(--spacing-lg);
        border-radius: 10px;
    }
    
    .tool-title {
        font-size: var(--font-size-base);
    }
    
    .tool-description {
        font-size: var(--font-size-xs);
    }
    
    .tool-textarea {
        font-size: 12px;
        padding: var(--spacing-sm);
        min-height: 80px;
    }
    
    .tool-actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 12px;
    }
    
    .color-palette {
        grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
        gap: var(--spacing-xs);
        padding: var(--spacing-sm);
    }
    
    .feature-badge {
        max-width: 240px;
        font-size: 12px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* iPhone 14 Pro and similar devices (393px width) */
@media (max-width: 393px) {
    .hero-title {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .stat {
        padding: var(--spacing-md);
    }
    
    .stat-number {
        font-size: var(--font-size-2xl);
    }
    
    .product-card {
        padding: var(--spacing-lg);
    }
    
    .product-name {
        font-size: var(--font-size-xl);
    }
    
    .skill-category {
        padding: var(--spacing-lg);
    }
    
    .skill-category-title {
        font-size: var(--font-size-xl);
    }
    
    .contact-method {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .contact-icon {
        width: 20px;
        height: 20px;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --text-secondary: #000000;
        --background-primary: #ffffff;
        --border-color: #000000;
    }
    
    .btn {
        border-width: 3px;
    }
    
    .form-input,
    .form-textarea {
        border-width: 3px;
    }
}