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

:root {
    --neon: #00ff41;
    --neon-dim: rgba(0, 255, 65, 0.15);
    --neon-glow: rgba(0, 255, 65, 0.4);
    --cyan: #00e5ff;
    --magenta: #ff00ff;
    --red: #ff3333;
    --yellow: #ffcc00;
    --dark-bg: #0a0a0f;
    --card-bg: rgba(15, 15, 25, 0.7);
    --card-border: rgba(0, 255, 65, 0.15);
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --gradient-1: linear-gradient(135deg, #00ff41, #00e5ff);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    color: var(--text);
    background: var(--dark-bg);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 255, 65, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 229, 255, 0.03) 0%, transparent 50%);
    z-index: 0;
    pointer-events: none;
}

.scanlines {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg, transparent, transparent 2px,
        rgba(0, 255, 65, 0.008) 2px, rgba(0, 255, 65, 0.008) 4px
    );
}

/* ===== NAV ===== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 0 2rem;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--card-border);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--neon);
    text-shadow: 0 0 10px var(--neon-glow);
    text-decoration: none;
}

.logo .cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--neon);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}

.nav-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0;
    width: 0; height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--neon);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--neon);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu.active { display: flex; }

.mobile-menu a {
    color: var(--text);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    transition: color 0.3s;
}

.mobile-menu a:hover, .mobile-menu a.active { color: var(--neon); }

/* ===== LANDING ===== */
.ctf-landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.landing-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    pointer-events: none;
}

.landing-content {
    text-align: center;
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.landing-badge {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--cyan);
    border: 1px solid rgba(0, 229, 255, 0.25);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    margin-bottom: 2rem;
    background: rgba(0, 229, 255, 0.05);
}

.landing-title {
    font-family: 'Inter', sans-serif;
    font-size: 4rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
    line-height: 1.1;
}

.title-accent {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--neon);
    margin-bottom: 1.5rem;
    min-height: 1.8em;
    text-shadow: 0 0 15px var(--neon-glow);
}

.tagline-cursor {
    animation: blink 1s step-end infinite;
}

/* Glitch effect — matches main site */
.glitch {
    position: relative;
    display: inline-block;
    color: var(--neon);
    text-shadow: 0 0 10px var(--neon-glow);
    animation: glitch 2s infinite;
    -webkit-text-fill-color: var(--neon);
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    animation: glitch-anim-1 2s infinite;
    color: #1e40af;
    clip-path: polygon(0 0, 100% 0, 100% 33%, 0 33%);
    -webkit-clip-path: polygon(0 0, 100% 0, 100% 33%, 0 33%);
}

.glitch::after {
    animation: glitch-anim-2 2s infinite;
    color: #ff00ff;
    clip-path: polygon(0 67%, 100% 67%, 100% 100%, 0 100%);
    -webkit-clip-path: polygon(0 67%, 100% 67%, 100% 100%, 0 100%);
}

@keyframes glitch {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        transform: translate(0);
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    20% { transform: translate(-2px, 2px); }
    22% { transform: translate(2px, -2px); }
    24% { clip-path: polygon(0 30%, 100% 30%, 100% 70%, 0 70%); }
    55% { clip-path: polygon(0 0, 100% 0, 100% 50%, 0 50%); }
}

@keyframes glitch-anim-1 {
    0%, 95% { transform: translate(0); }
    97% { transform: translate(-2px, 2px); }
    99% { transform: translate(-1px, -2px); }
    100% { transform: translate(0); }
}

@keyframes glitch-anim-2 {
    0%, 95% { transform: translate(0); }
    97% { transform: translate(2px, -2px); }
    99% { transform: translate(1px, 2px); }
    100% { transform: translate(0); }
}

.landing-desc {
    color: var(--text-dim);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.start-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: var(--neon);
    border: none;
    color: var(--dark-bg);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.start-btn .btn-icon {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.1rem;
}

.start-btn:hover {
    box-shadow: 0 0 30px var(--neon-glow), 0 0 60px rgba(0, 255, 65, 0.15);
    transform: translateY(-2px);
}

.start-btn:active {
    transform: translateY(0);
}

.landing-footer {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-item {
    font-family: 'Inter', sans-serif;
    font-size: 0.78rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.6;
}

.footer-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--neon);
    box-shadow: 0 0 6px var(--neon-glow);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--neon);
    text-shadow: 0 0 10px var(--neon-glow);
}

.stat-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== HUD ===== */
.hud {
    position: fixed;
    top: 72px; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 2rem;
    background: rgba(10, 10, 15, 0.9);
    border-bottom: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
}

.hud-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hud-stage {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cyan);
    letter-spacing: 1px;
}

.hud-title {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hud-center {
    flex: 1;
    max-width: 300px;
    margin: 0 2rem;
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 2px;
    transition: width 0.5s ease;
    box-shadow: 0 0 10px var(--neon-glow);
}

.hud-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hud-timer {
    font-size: 1rem;
    font-weight: 700;
    color: var(--neon);
    text-shadow: 0 0 8px var(--neon-glow);
    font-variant-numeric: tabular-nums;
}

.hint-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--yellow);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.hint-btn:hover {
    border-color: var(--yellow);
    box-shadow: 0 0 10px rgba(255, 204, 0, 0.2);
}

.hint-count {
    font-size: 0.7rem;
    background: rgba(255, 204, 0, 0.2);
    padding: 0 0.35rem;
    border-radius: 3px;
}

/* ===== TERMINAL ===== */
.ctf-terminal {
    position: relative;
    z-index: 1;
}

.terminal {
    margin-top: calc(72px + 45px);
    padding: 1.5rem 2rem 1rem;
    min-height: calc(100vh - 72px - 45px);
    display: flex;
    flex-direction: column;
}

.terminal-output {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 1rem;
}

.terminal-output .line {
    margin-bottom: 2px;
    word-wrap: break-word;
    white-space: pre-wrap;
    font-size: 0.88rem;
    line-height: 1.5;
}

.line.system { color: var(--cyan); }
.line.error { color: var(--red); }
.line.success { color: var(--neon); }
.line.warning { color: var(--yellow); }
.line.dim { color: var(--text-dim); }
.line.flag { color: var(--magenta); font-weight: 700; text-shadow: 0 0 10px rgba(255, 0, 255, 0.4); }
.line.ascii { color: var(--neon); opacity: 0.7; font-size: 0.7rem; line-height: 1.1; }
.line.header { color: var(--neon); font-weight: 700; font-size: 1rem; }
.line.prompt-line { color: var(--neon); }

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.prompt {
    color: var(--neon);
    font-weight: 500;
    font-size: 0.88rem;
    white-space: nowrap;
    text-shadow: 0 0 5px var(--neon-glow);
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88rem;
    outline: none;
    caret-color: var(--neon);
}

/* Typewriter effect */
.typewriter .char {
    opacity: 0;
    animation: typeChar 0.02s forwards;
}

@keyframes typeChar {
    to { opacity: 1; }
}

.connect-btn {
    display: inline-block;
    padding: 0.7rem 2rem;
    background: #0077b5;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    margin-bottom: 2rem;
    transition: all 0.3s;
}

.connect-btn:hover {
    background: #009ae5;
    box-shadow: 0 0 20px rgba(0, 119, 181, 0.4);
    transform: translateY(-2px);
}

/* ===== COMPLETION ===== */
.ctf-complete {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    z-index: 1;
}

.complete-content {
    text-align: center;
    max-width: 600px;
}

.complete-flag {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--magenta);
    text-shadow: 0 0 15px rgba(255, 0, 255, 0.4);
    padding: 1rem 2rem;
    border: 1px solid rgba(255, 0, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 0, 255, 0.05);
    margin-bottom: 2rem;
    word-break: break-all;
    animation: flagPulse 2s ease-in-out infinite;
}

@keyframes flagPulse {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 0, 255, 0.1); }
    50% { box-shadow: 0 0 30px rgba(255, 0, 255, 0.3); }
}

.complete-title {
    font-family: 'Inter', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--neon);
    text-shadow: 0 0 20px var(--neon-glow);
    margin-bottom: 0.5rem;
}

.complete-subtitle {
    font-family: 'Inter', sans-serif;
    color: var(--text-dim);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.complete-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.complete-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.share-btn {
    padding: 0.7rem 1.5rem;
    background: transparent;
    border: 1px solid var(--cyan);
    color: var(--cyan);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s;
}

.share-btn:hover {
    background: var(--cyan);
    color: var(--dark-bg);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.share-btn.linkedin {
    border-color: #0077b5;
    color: #0077b5;
}

.share-btn.linkedin:hover {
    background: #0077b5;
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 119, 181, 0.3);
}

.restart-btn {
    padding: 0.7rem 1.5rem;
    background: transparent;
    border: 1px solid var(--neon);
    color: var(--neon);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s;
}

.restart-btn:hover {
    background: var(--neon);
    color: var(--dark-bg);
    box-shadow: 0 0 20px var(--neon-glow);
}

.back-link {
    color: var(--text-dim);
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.back-link:hover { color: var(--neon); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }

    .landing-title { font-size: 2.5rem; }
    .landing-tagline { font-size: 0.95rem; }

    .hud { padding: 0.5rem 1rem; }
    .hud-center { display: none; }
    .hud-title { display: none; }

    .terminal { padding: 1rem; }
    .terminal-input-line { font-size: 0.8rem; }
    .prompt { font-size: 0.8rem; }
    .terminal-input { font-size: 0.8rem; }
    .terminal-output .line { font-size: 0.8rem; }

    .complete-flag { font-size: 0.85rem; padding: 0.75rem 1rem; }
    .complete-title { font-size: 1.8rem; }
    .complete-stats { gap: 1.5rem; }
}

@media (max-width: 480px) {
    .landing-title { font-size: 2rem; }
    .landing-footer { gap: 1rem; }
    .complete-title { font-size: 1.4rem; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon-dim); }