/* 
   P-Tek Technologies - Premium Design System 
   Theme: Tech Dark with Cyan Accents
*/

:root {
    /* Colors */
    --bg-dark: #050505;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --primary-cyan: #00f0ff;
    --secondary-blue: #0088ff;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --border-light: rgba(255, 255, 255, 0.1);

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #00f0ff 0%, #0088ff 100%);
    --gradient-text: linear-gradient(90deg, #00f0ff, #0088ff);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Outfit', sans-serif; /* Clean, modern sans-serif */
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -1px;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0, 240, 255, 0.15);
    border-color: rgba(0, 240, 255, 0.3);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-hero);
    color: #000;
    border: none;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-main);
}

.btn-secondary:hover {
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
    background: rgba(0, 240, 255, 0.05);
}

/* Animation Utilities (used with IntersectionObserver) */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) 0;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

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

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Add JS to toggle */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
}