/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary: #ffffff;
    --primary-dark: #cccccc;
    --accent: #00ff9d;
    
    /* Backgrounds */
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --bg-card: #121212;
    --bg-card-hover: #1a1a1a;
    
    /* Text */
    --text-light: #ffffff;
    --text-gray: #888888;
    --text-dark: #444444;
    
    /* Borders */
    --border: #222222;
    --border-light: #333333;
    
    /* Shadows */
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition: all 0.2s ease;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.5;
    overflow-x: hidden;
    font-size: 16px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 0.75rem;
    color: var(--text-gray);
    line-height: 1.4;
}

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

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

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    width: 100%;
}

/* ===== TOP BAR ===== */
.top-bar {
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.top-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.top-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--text-gray);
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.25rem;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.contact-info a {
    color: var(--text-gray);
}

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

/* ===== BACK TO MAIN ===== */
.back-to-main {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.back-to-main:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-card-hover);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    padding-top: 70px;
    min-height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
}

/* ===== GRID SECTION ===== */
.grid-section {
    flex: 1;
    padding: var(--space-xl) 0;
    display: flex;
    align-items: center;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
}

/* ===== GRID ITEMS ===== */
.grid-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-light);
    text-align: center;
    min-height: 140px;
}

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

.grid-icon {
    font-size: 2rem;
    color: var(--accent);
    height: 50px;
    width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .container {
        max-width: 95%;
        padding: 0 var(--space-sm);
    }
    
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .top-bar {
        padding: 0.5rem 0;
    }
    
    .top-bar .container {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .top-logo {
        font-size: 1.25rem;
    }
    
    .top-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .social-links {
        gap: 0.75rem;
    }
    
    .contact-info {
        font-size: 0.8rem;
    }
    
    .main-content {
        padding-top: 100px;
    }
    
    .grid-section {
        padding: var(--space-lg) 0;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
        max-width: 400px;
        gap: 1rem;
    }
    
    .grid-item {
        padding: 1.5rem;
        min-height: 120px;
    }
    
    .grid-icon {
        font-size: 1.75rem;
        height: 45px;
        width: 45px;
    }
    
    .grid-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .grid-container {
        gap: 0.75rem;
    }
    
    .grid-item {
        padding: 1.25rem;
        min-height: 110px;
    }
    
    .grid-icon {
        font-size: 1.5rem;
        height: 40px;
        width: 40px;
    }
    
    .grid-title {
        font-size: 1rem;
    }
}