/* ============================================================
   gotr00t — shared theme
   Dark underground / black-hat aesthetic, modernised.
   Monochrome base + a single restrained terminal-green accent.
   ============================================================ */

:root {
    /* Surfaces */
    --bg:            #050506;
    --bg-2:          #0a0a0c;
    --surface:       rgba(255, 255, 255, 0.025);
    --surface-2:     rgba(255, 255, 255, 0.05);
    --surface-3:     rgba(255, 255, 255, 0.08);

    /* Lines */
    --border:        rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --grid:          rgba(255, 255, 255, 0.022);

    /* Text */
    --text:          #e7e8ea;
    --text-dim:      #9a9ba2;
    --text-faint:    #5c5d64;

    /* Accent — used sparingly */
    --accent:        #39ff14;
    --accent-soft:   #7cff62;
    --accent-dim:    #1c8a2b;
    --accent-glow:   rgba(57, 255, 20, 0.30);

    /* Signal (danger / CVE) — desaturated, rarely used */
    --danger:        #ff5c5c;

    /* Shape & motion */
    --radius:        14px;
    --radius-sm:     9px;
    --shadow:        0 10px 40px rgba(0, 0, 0, 0.55);
    --ease:          cubic-bezier(0.4, 0, 0.2, 1);

    /* Type */
    --font-mono:     'JetBrains Mono', ui-monospace, 'Share Tech Mono', 'SFMono-Regular', Menlo, monospace;
    --font-display:  'Orbitron', var(--font-mono);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Subtle grid + vignette background — replaces the old animated dots */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        linear-gradient(var(--grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 55%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 55%, transparent 100%);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(900px 500px at 80% -10%, rgba(57, 255, 20, 0.05), transparent 70%),
        radial-gradient(1200px 700px at 50% 120%, rgba(255, 255, 255, 0.03), transparent 70%);
    pointer-events: none;
}

::selection {
    background: var(--accent);
    color: #000;
}

/* Scrollbars */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
}
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.28); }

/* ---------- Typography ---------- */

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.15;
}

.page-title {
    font-size: clamp(2.2rem, 6vw, 3.4rem);
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
    text-shadow: 0 0 24px rgba(255, 255, 255, 0.12);
}

.subtitle {
    color: var(--text-dim);
    font-size: clamp(0.95rem, 2vw, 1.2rem);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* Terminal prompt with green sigil + blinking cursor */
.terminal-prompt {
    font-family: var(--font-mono);
    color: var(--text-dim);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}
.terminal-prompt::before {
    content: "❯ ";
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent-glow);
    font-weight: 700;
}
.terminal-prompt::after {
    content: "";
    display: inline-block;
    width: 8px;
    height: 1.05em;
    margin-left: 4px;
    vertical-align: text-bottom;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    animation: caret 1.1s steps(1) infinite;
}
@keyframes caret { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* ---------- Navigation (shared look; layout set per page) ---------- */

.nav-link {
    color: var(--text-dim);
    text-decoration: none;
    padding: 10px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    transition: color 0.2s var(--ease), background 0.2s var(--ease),
                border-color 0.2s var(--ease), transform 0.2s var(--ease);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-size: 0.82rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 9px;
}
.nav-link i {
    width: 16px;
    text-align: center;
    color: var(--text-faint);
    transition: color 0.2s var(--ease);
}
.nav-link:hover {
    color: #fff;
    background: var(--surface-2);
    border-color: var(--border-strong);
}
.nav-link:hover i { color: var(--accent); }
.nav-link.active {
    color: #fff;
    background: var(--surface);
    border-color: var(--accent-dim);
    box-shadow: inset 0 0 0 1px rgba(57, 255, 20, 0.06);
}
.nav-link.active i { color: var(--accent); }

/* ---------- Buttons ---------- */

.btn,
.social-link,
.project-link,
.enter-btn,
.cve-link,
.blog-link,
.guide-link,
.contact-link,
.github-link {
    --btn-fg: var(--text);
    color: var(--btn-fg);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 22px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 0.2s var(--ease), background 0.2s var(--ease),
                border-color 0.2s var(--ease), transform 0.2s var(--ease),
                box-shadow 0.2s var(--ease);
}
.btn:hover,
.social-link:hover,
.project-link:hover,
.enter-btn:hover,
.cve-link:hover,
.blog-link:hover,
.guide-link:hover,
.contact-link:hover,
.github-link:hover {
    color: #fff;
    background: var(--surface-2);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(57, 255, 20, 0.15), 0 10px 30px rgba(0, 0, 0, 0.5);
}
.btn i,
.social-link i,
.project-link i,
.cve-link i,
.blog-link i,
.github-link i { color: var(--accent); }

/* Primary accent button */
.btn-accent {
    background: rgba(57, 255, 20, 0.08);
    border-color: var(--accent-dim);
    color: #fff;
}

/* ---------- Chips / tags / badges ---------- */

.tag,
.project-tag,
.news-tag,
.blog-tag {
    display: inline-block;
    padding: 4px 11px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text-dim);
    font-size: 0.72rem;
    letter-spacing: 0.6px;
}

.project-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid var(--accent-dim);
    background: rgba(57, 255, 20, 0.07);
    color: var(--accent-soft);
    font-size: 0.72rem;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

/* ---------- Card ---------- */

.card,
.cve-card,
.blog-card,
.contact-card,
.guide-card,
.project-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    overflow: hidden;
    transition: border-color 0.25s var(--ease), transform 0.25s var(--ease),
                box-shadow 0.25s var(--ease);
}
/* Accent hairline that lights up on hover */
.card::before,
.cve-card::before,
.blog-card::before,
.contact-card::before,
.guide-card::before,
.project-card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 2px;
    background: linear-gradient(var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.25s var(--ease);
    z-index: 1;
}
.card:hover,
.cve-card:hover,
.blog-card:hover,
.contact-card:hover,
.guide-card:hover,
.project-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.card:hover::before,
.cve-card:hover::before,
.blog-card:hover::before,
.contact-card:hover::before,
.guide-card:hover::before,
.project-card:hover::before { opacity: 1; }

/* ---------- Shared page scaffolding (top-nav pages) ---------- */

.nav-header {
    background: rgba(6, 6, 8, 0.72);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    padding: 0 20px;
}
.nav-links {
    display: flex;
    gap: 10px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

/* Centered page header used by secondary pages */
.header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 56px 20px 40px;
}
.header h1 {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 6vw, 3.4rem);
    font-weight: 900;
    letter-spacing: 2px;
    color: #fff;
    text-shadow: 0 0 24px rgba(255, 255, 255, 0.12);
    margin-bottom: 14px;
}
.header .subtitle { margin: 0 auto 18px; max-width: 640px; }
.header .terminal-prompt { display: inline-block; }

/* Inline header used inside a .container */
.page-head { text-align: center; margin-bottom: 48px; }
.page-head .terminal-prompt { display: inline-block; margin-bottom: 22px; }
.page-head .page-title { display: block; margin-bottom: 14px; }
.page-head .subtitle { max-width: 640px; margin: 0 auto; }

@media (max-width: 768px) {
    .header { padding: 36px 18px 28px; }
}

/* Utility */
.mono-accent { color: var(--accent); }
.dim { color: var(--text-dim); }