:root {
    /* Colors */
    --primary-color: #A57CF5;
    --primary-hover: #8B5CF6;
    --primary-dark: #7C3AED;
    --secondary-color: #333;
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #999;
    --background-primary: #fff;
    --background-secondary: #f8f9fa;
    --background-tertiary: #f1f1f1;
    --border-color: rgba(165, 124, 245, 0.1);
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 10px 30px rgba(165, 124, 245, 0.1);
    --shadow-heavy: 0 20px 40px rgba(165, 124, 245, 0.15);
    
    /* Spacing (8pt grid) */
    --space-xs: 0.5rem;   /* 8px */
    --space-sm: 1rem;     /* 16px */
    --space-md: 1.5rem;   /* 24px */
    --space-lg: 2rem;     /* 32px */
    --space-xl: 3rem;     /* 48px */
    --space-xxl: 4rem;    /* 64px */
    --space-xxxl: 6rem;   /* 96px */
    
    /* Typography */
    --font-family-primary: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.875rem;  /* 14px */
    --font-size-sm: 1rem;      /* 16px */
    --font-size-md: 1.125rem;  /* 18px */
    --font-size-lg: 1.25rem;   /* 20px */
    --font-size-xl: 1.5rem;    /* 24px */
    --font-size-xxl: 2rem;     /* 32px */
    --font-size-xxxl: 3rem;    /* 48px */
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Breakpoints */
    --mobile: 768px;
    --tablet: 1024px;
    --desktop: 1200px;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-primary);
    font-weight: 400;
    font-display: swap;
    font-size: var(--font-size-sm);
}

body.menu-open {
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--background-primary);
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

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

.logo {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--space-xs);
    background: none;
    border: none;
    z-index: 1001;
}

.nav-toggle-bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-normal);
    border-radius: 2px;
}

.nav-toggle.active .nav-toggle-bar:nth-child(1) {
    transform: rotate(-45deg) translate(-9px, 6px);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
    transform: rotate(45deg) translate(-8px, -8px);
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-normal);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 50%, var(--primary-dark) 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: var(--space-xxxl) 0;
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    font-weight: 300;
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    min-width: 180px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

.hero-sidebar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 4px solid rgba(255,255,255,0.3);
    display: block;
}

.hero-positions {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.2);
    width: 100%;
    max-width: 280px;
}

.hero-positions h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: white;
    font-weight: 600;
}

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

.positions-list li {
    color: rgba(255,255,255,0.9);
    font-size: var(--font-size-xs);
    padding: var(--space-xs) 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    font-weight: 500;
}

.positions-list li:last-child {
    border-bottom: none;
}

.profile-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 4px solid rgba(255,255,255,0.3);
    margin-left: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: rgba(255,255,255,0.1);
    color: white;
    text-align: center;
}

.profile-placeholder i {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.profile-placeholder p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

/* About Section */
.about {
    padding: var(--space-xxxl) 0;
    background-color: var(--background-secondary);
}

.about h2 {
    font-size: var(--font-size-xxl);
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
    position: relative;
    line-height: 1.2;
}

.about h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #A57CF5, #8B5CF6);
    border-radius: 2px;
}

.about p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    max-width: 800px;
    line-height: 1.7;
    margin: 0 auto var(--space-lg);
    text-align: center;
}

.about p:last-child {
    margin-bottom: 0;
}

/* Services Section */
.services {
    padding: var(--space-xxxl) 0;
    background-color: var(--background-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.services-column {
    background: linear-gradient(145deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.services-column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #A57CF5, #8B5CF6);
}

.services-column:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.services-column h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
    position: relative;
    line-height: 1.3;
}

.services-column h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #A57CF5;
    border-radius: 1px;
}

.services-list {
    list-style: none;
}

.services-list li {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-bottom: 1px solid var(--background-tertiary);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    margin: 0 calc(-1 * var(--space-sm));
    line-height: 1.5;
}

.services-list li:last-child {
    border-bottom: none;
}

.services-list i {
    color: #A57CF5;
    width: 20px;
    margin-right: 1rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    transform-origin: center;
}

.services-list li:hover i {
    color: #8B5CF6;
    transform: scale(1.2) rotate(5deg);
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: var(--background-primary);
    padding: var(--space-lg) 0;
}

.footer-content {
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.contact-info p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.contact-info i {
    margin-right: 0.5rem;
    color: #A57CF5;
}

.social-links {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-links a {
    color: #A57CF5;
    font-size: 1.8rem;
    padding: 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    color: #fff;
    transform: translateY(-2px);
}


/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        padding: var(--space-sm);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--background-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-xl);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-heavy);
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        font-size: var(--font-size-lg);
        font-weight: 600;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }
    
    .hero-title {
        font-size: var(--font-size-xxl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-sidebar {
        order: 2;
    }
    
    .profile-photo,
    .profile-placeholder {
        width: 150px;
        height: 150px;
    }
    
    .hero-positions {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .profile-placeholder i {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about h2 {
        font-size: var(--font-size-xl);
    }
    
    .services-column h3 {
        font-size: var(--font-size-lg);
    }
    
    .hero {
        padding: var(--space-xxl) 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .about p {
        font-size: var(--font-size-sm);
    }
    
    .services-list li {
        font-size: 0.9rem;
    }
    
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 2px solid #A57CF5;
    outline-offset: 2px;
}

/* Animation for better UX */
.services-list li {
    transition: background-color 0.2s ease;
}

.services-list li:hover {
    background-color: rgba(165, 124, 245, 0.08);
    transform: translateX(5px);
    border-left: 3px solid #A57CF5;
    color: #333;
}

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

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

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

.scroll-animate-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.scroll-animate-left.animate {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease-out;
}

.scroll-animate-right.animate {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease-out;
}

.scroll-animate-scale.animate {
    opacity: 1;
    transform: scale(1);
}