@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=JetBrains+Mono:wght@400;700&display=swap');

/* --- RESET & VARIABLES --- */
:root {
    --c-bg: #050608;
    --c-surface: #0e1116;
    --c-surface-hover: #161b22;
    --c-border: #21262d;
    --c-text-main: #e6edf3;
    --c-text-muted: #8b949e;
    
    --c-accent-cyan: #00f0ff;
    --c-accent-blue: #0066ff;
    --c-accent-glow: rgba(0, 240, 255, 0.15);
    
    --f-body: 'Inter', sans-serif;
    --f-mono: 'JetBrains Mono', monospace;
    
    --s-xs: 0.5rem;
    --s-sm: 1rem;
    --s-md: 2rem;
    --s-lg: 4rem;
    --s-xl: 6rem;
    
    --radius-sm: 4px;
    --radius-md: 12px;
    
    --container-width: 1240px;
}

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

body {
    background-color: var(--c-bg);
    color: var(--c-text-main);
    font-family: var(--f-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
    color: var(--c-text-main);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); margin-bottom: var(--s-sm); }
h2 { font-size: clamp(2rem, 3vw + 1rem, 3rem); margin-bottom: var(--s-sm); }
h3 { font-size: 1.5rem; margin-bottom: var(--s-xs); }

p { margin-bottom: var(--s-sm); color: var(--c-text-muted); }
.lead { font-size: 1.25rem; color: var(--c-text-main); font-weight: 300; max-width: 70ch; }

.text-cyan { color: var(--c-accent-cyan); }
.text-mono { font-family: var(--f-mono); font-size: 0.85em; letter-spacing: 0.05em; }

a { text-decoration: none; color: inherit; transition: color 0.2s ease; }

/* --- LAYOUT UTILITIES --- */
.pk-wrap {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding-inline: clamp(1rem, 5vw, 2rem);
}

.pk-grid {
    display: grid;
    gap: var(--s-md);
}

.pk-flex {
    display: flex;
    flex-direction: column;
}

/* --- COMPONENTS --- */

/* Buttons */
.pk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--f-mono);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.pk-btn--primary {
    background: var(--c-accent-cyan);
    color: #000;
    box-shadow: 0 0 20px var(--c-accent-glow);
}

.pk-btn--primary:hover {
    background: #fff;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.pk-btn--outline {
    background: transparent;
    border-color: var(--c-border);
    color: var(--c-text-main);
}

.pk-btn--outline:hover {
    border-color: var(--c-accent-cyan);
    color: var(--c-accent-cyan);
    background: rgba(0, 240, 255, 0.05);
}

/* Cards */
.pk-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    padding: var(--s-md);
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.pk-card:hover {
    border-color: var(--c-accent-cyan);
    transform: translateY(-5px);
    background: var(--c-surface-hover);
}

.pk-card__icon {
    font-size: 2rem;
    color: var(--c-accent-cyan);
    margin-bottom: var(--s-sm);
}

/* Section Defaults */
.pk-section {
    padding-block: var(--s-lg);
    position: relative;
}

/* --- HEADER --- */
.pk-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(5, 6, 8, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    padding-block: 0.75rem;
}

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

.pk-logo {
    font-family: var(--f-mono);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--c-text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pk-logo span { color: var(--c-accent-cyan); }

.pk-nav {
    display: flex;
    gap: var(--s-md);
}

.pk-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--c-text-muted);
    position: relative;
}

.pk-nav a:hover, .pk-nav a.active {
    color: var(--c-accent-cyan);
}

/* --- FOOTER --- */
.pk-footer {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border);
    padding-block: var(--s-lg);
    margin-top: var(--s-lg);
    font-size: 0.9rem;
}

.pk-footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--s-md);
}

.pk-footer__col h4 {
    font-family: var(--f-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--c-text-main);
    margin-bottom: var(--s-sm);
}

.pk-footer__col ul { list-style: none; }
.pk-footer__col li { margin-bottom: 0.5rem; }
.pk-footer__col a:hover { color: var(--c-accent-cyan); text-decoration: underline; }

.pk-footer__bottom {
    margin-top: var(--s-md);
    padding-top: var(--s-sm);
    border-top: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    color: var(--c-text-muted);
    font-size: 0.8rem;
}

/* --- HERO SPECIFIC --- */
.pk-hero {
    padding-top: var(--s-xl);
    padding-bottom: var(--s-xl);
    background: radial-gradient(circle at 50% 0%, #1a2235 0%, var(--c-bg) 60%);
}

.pk-hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-lg);
    align-items: center;
}

.pk-hero__content {
    z-index: 2;
}

.pk-hero__visual {
    position: relative;
    height: 400px;
    background: 
        linear-gradient(45deg, transparent 49%, var(--c-accent-cyan) 49%, var(--c-accent-cyan) 51%, transparent 51%),
        linear-gradient(-45deg, transparent 49%, var(--c-accent-blue) 49%, var(--c-accent-blue) 51%, transparent 51%);
    background-size: 20px 20px;
    border-radius: var(--radius-md);
    opacity: 0.2;
    animation: gridMove 20s linear infinite;
    border: 1px solid var(--c-border);
}

.pk-hero__btns {
    margin-top: var(--s-md);
    display: flex;
    gap: var(--s-sm);
}

/* --- STATS --- */
.pk-stats {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    padding-block: var(--s-md);
}

.pk-stats__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--s-md);
    text-align: center;
}

.pk-stat__num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--c-accent-cyan);
    font-family: var(--f-mono);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.pk-stat__label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- FAQ --- */
.pk-faq {
    max-width: 800px;
    margin: 0 auto;
}

details {
    border-bottom: 1px solid var(--c-border);
    padding: var(--s-sm) 0;
}

summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--c-text-main);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

summary::-webkit-details-marker { display: none; }

summary::after {
    content: '+';
    font-family: var(--f-mono);
    color: var(--c-accent-cyan);
    font-size: 1.2rem;
}

details[open] summary::after { content: '-'; }

details p {
    margin-top: 1rem;
    padding-right: 2rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .pk-header__inner { flex-direction: column; gap: 1rem; }
    .pk-nav { flex-wrap: wrap; justify-content: center; }
    .pk-hero__grid { grid-template-columns: 1fr; }
    .pk-hero__visual { display: none; }
    .pk-footer__grid { grid-template-columns: 1fr; }
    .pk-section { padding-block: var(--s-md); }
}

@keyframes gridMove {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
} html{-webkit-text-size-adjust:100%} *{box-sizing:border-box} img,svg,video{max-width:100%;height:auto} body{margin:0}