/* ============================================
   ROOT VARIABLES & GENERAL STYLES
   ============================================ */

:root {
    /* Accent Color & Shades */
    --accent-primary: #F9792B;
    --accent-light: #FF9D5C;
    --accent-dark: #E05A1A;
    --accent-hover: #FF8A3D;
    
    /* Dark Theme Colors */
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #252525;
    --bg-card: #1E1E1E;
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #CCCCCC;
    --text-muted: #999999;
    
    /* Borders & Dividers */
    --border-color: #333333;
    --border-accent: #F9792B;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 4px 20px rgba(249, 121, 43, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-width: 1200px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(249, 121, 43, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(249, 121, 43, 0.02) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Exo 2', 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.75rem;
}

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

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

a:hover {
    color: var(--accent-hover);
}

/* ============================================
   CONTAINER
   ============================================ */

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

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background-color: var(--accent-primary);
    color: var(--text-primary);
    border: 2px solid var(--accent-primary);
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--accent-primary);
}

.btn-outline:hover {
    background-color: var(--accent-primary);
    color: var(--text-primary);
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ============================================
   RESPONSIVE
   ============================================ */

/* ============================================
   HEADER
   ============================================ */

.main-header {
    background-color: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}

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

.main-nav {
    display: flex;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: width var(--transition-normal);
}

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
}

/* ============================================
   FOOTER
   ============================================ */

.main-footer {
    background-color: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--accent-primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--accent-primary);
    padding-left: 5px;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--accent-primary);
}

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

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        padding: var(--spacing-md);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}