/* =========================================================
   PULSIDEV NETWORK // SYSTEM DESIGN TOKENS
   Aesthetic: Deep Space Carbon & Technical Precision (Non-AI)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-base: #07090e;
    --bg-surface: #0d1119;
    --bg-surface-elevated: #131926;
    --bg-surface-glass: rgba(13, 17, 25, 0.75);

    --border-subtle: rgba(255, 255, 255, 0.07);
    --border-active: rgba(0, 240, 255, 0.4);
    --border-highlight: rgba(255, 255, 255, 0.16);

    --text-primary: #f0f4fc;
    --text-secondary: #94a3b8;
    --text-muted: #526077;
    --text-accent: #00f0ff;

    --color-cyan: #00f0ff;
    --color-pink: #ff2d75;
    --color-orange: #ff6b00;
    --color-emerald: #00ff88;
    --color-violet: #a855f7;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Background Canvas */
#grid-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
}

/* Container */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* =========================================================
   NAVIGATION / HEADER
   ========================================================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7, 9, 14, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 16px 0;
}

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

.brand-anchor {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    user-select: none;
    cursor: pointer;
}

.brand-icon-wrap {
    position: relative;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-fast);
}

.brand-icon-wrap img {
    width: 24px;
    height: 24px;
}

.pulse-beacon {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-cyan);
    box-shadow: 0 0 8px var(--color-cyan);
    animation: beaconPulse 2s infinite;
}

@keyframes beaconPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.5; }
}

.brand-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.brand-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.nav-metrics {
    display: flex;
    align-items: center;
    gap: 20px;
}

.telemetry-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 6px 12px;
    border-radius: 20px;
    background: rgba(0, 255, 136, 0.06);
    border: 1px solid rgba(0, 255, 136, 0.25);
    color: var(--color-emerald);
}

.telemetry-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-emerald);
    box-shadow: 0 0 6px var(--color-emerald);
}

/* =========================================================
   HERO SECTION
   ========================================================= */
.hero {
    padding: 72px 0 54px;
    position: relative;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.system-flag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-cyan);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
    max-width: 820px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #f0f4fc 30%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title .accent {
    color: var(--color-cyan);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 2.8rem;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 720px;
    line-height: 1.6;
    margin-bottom: 32px;
}

.hero-specs-row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.spec-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.spec-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.spec-value {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* =========================================================
   PROJECT SHOWCASE GRID
   ========================================================= */
.section-title-wrap {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin: 48px 0 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-counter {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

/* Project Card */
.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 28px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--card-color, var(--color-cyan));
    opacity: 0.8;
}

.project-card:hover {
    border-color: var(--card-color, var(--color-cyan));
    transform: translateY(-2px);
}

.card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-identity {
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.card-name {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-domain {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
}

.card-status.online {
    color: var(--color-emerald);
    border-color: rgba(0, 255, 136, 0.25);
    background: rgba(0, 255, 136, 0.06);
}

.card-status.standby {
    color: var(--text-muted);
}

.card-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.55;
    margin-bottom: 24px;
}

.card-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 24px;
}

.tech-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
}

.ping-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.btn-launch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-highlight);
    transition: var(--transition-fast);
}

.btn-launch:hover {
    background: var(--text-primary);
    color: var(--bg-base);
    border-color: var(--text-primary);
}

/* =========================================================
   ARCHITECTURE & PROTOCOL SECTION
   ========================================================= */
.protocols-section {
    padding: 40px 0 80px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 24px;
}

.feature-code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-cyan);
    margin-bottom: 8px;
    display: block;
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 32px 0;
    background: var(--bg-base);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-creds {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* =========================================================
   STEALTH TERMINAL PROMPT (SECRET TRIGGER MODAL)
   ========================================================= */
.stealth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 6, 10, 0.88);
    backdrop-filter: blur(12px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.stealth-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.terminal-box {
    width: 90%;
    max-width: 480px;
    background: #0b0f17;
    border: 1px solid var(--color-cyan);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
    border-radius: 8px;
    overflow: hidden;
    font-family: var(--font-mono);
}

.terminal-header {
    background: #0e141f;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(0, 240, 255, 0.2);
    font-size: 0.75rem;
    color: var(--color-cyan);
}

.terminal-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.terminal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    cursor: pointer;
    font-size: 0.8rem;
}

.terminal-close:hover {
    color: #fff;
}

.terminal-body {
    padding: 20px;
}

.terminal-log {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.terminal-log .highlight {
    color: var(--color-cyan);
}

.terminal-input-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    padding: 8px 12px;
}

.terminal-prompt {
    color: var(--color-cyan);
    font-size: 0.85rem;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.terminal-status {
    margin-top: 10px;
    font-size: 0.75rem;
    min-height: 18px;
}

.terminal-status.error {
    color: var(--color-pink);
}

.terminal-status.success {
    color: var(--color-emerald);
}

/* Responsive */
@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.3rem;
    }
    .hero-title .accent {
        font-size: 2.1rem;
    }
}