@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --surface-container-lowest: #0e0e0e;
    --surface-dim: #131313;
    --surface: #131313;
    --surface-container-low: #1b1b1b;
    --surface-container: #1f1f1f;
    --surface-container-high: #2a2a2a;
    --surface-container-highest: #353535;
    --surface-bright: #393939;
    --primary: #eaffde;
    --primary-container: #00ff00;
    --primary-fixed: #77ff61;
    --primary-fixed-dim: #02e600;
    --on-primary: #013a00;
    --on-primary-container: #027100;
    --secondary: #9ed58d;
    --secondary-fixed-dim: #9ed58d;
    --on-secondary: #063904;
    --on-surface: #e2e2e2;
    --on-surface-variant: #b9ccaf;
    --outline-variant: #3b4b35;
    --background: #131313;
}

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

::selection {
    background: var(--primary-container);
    color: var(--on-primary);
}

body {
    font-family: 'Space Grotesk', monospace;
    background-color: var(--background);
    color: var(--on-surface);
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%),
                linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 0, 255, 0.03));
    background-size: 100% 3px, 3px 100%;
    pointer-events: none;
    z-index: 1000;
}

.cursor-blink {
    display: inline-block;
    width: 8px;
    height: 1.2em;
    background-color: var(--primary-container);
    vertical-align: middle;
    margin-left: 4px;
    animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
    to { visibility: hidden; }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 255, 0, 0.3); }
    50% { box-shadow: 0 0 15px rgba(0, 255, 0, 0.6); }
}

.steps-transition {
    transition-timing-function: steps(4);
}

.flicker-effect:active {
    opacity: 0.7;
}

.ghost-border {
    border: 1px solid rgba(0, 255, 0, 0.2);
}

.terminal-header {
    background-color: var(--surface-container-highest);
    color: var(--primary-container);
    padding: 2px 8px;
    font-size: 0.65rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.terminal-border {
    border: 2px solid var(--surface-container-highest);
    position: relative;
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.nav-link {
    color: rgba(234, 255, 222, 0.6);
    transition: all steps(4);
    padding: 0 0.5rem;
    display: inline-block;
}

.nav-link:hover {
    background: var(--surface-container-highest);
    color: var(--primary-container);
}

.nav-link.active {
    color: var(--primary-container);
    border-bottom: 2px solid var(--primary-container);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.5rem;
    color: rgba(0, 255, 0, 0.7);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    transition: none;
    font-weight: 500;
}

.sidebar-link:hover {
    background: var(--surface-container-highest);
    color: var(--primary-container);
}

.sidebar-link.active {
    background: var(--primary-container);
    color: var(--surface-dim);
    font-weight: 700;
}

.section-prompt {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-container);
    margin-bottom: 2rem;
    font-weight: 700;
    letter-spacing: -0.05em;
}

.section-prompt span.arrow {
    font-size: 1.25rem;
}

.btn-primary {
    background: var(--primary-container);
    color: var(--on-primary);
    font-weight: 900;
    padding: 0.75rem 2.5rem;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    transition: all steps(4);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
}

.tag {
    background: rgba(0, 255, 0, 0.1);
    color: var(--primary-container);
    font-size: 0.6rem;
    padding: 0.125rem 0.5rem;
    display: inline-block;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.stat-card {
    border: 1px solid rgba(0, 255, 0, 0.2);
    padding: 1rem;
    flex: 1;
    background: var(--surface);
}

.stat-card .label {
    font-size: 0.6rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.25rem;
}

.stat-card .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-container);
    font-family: monospace;
}

@media (max-width: 768px) {
    .sidebar {
        display: none !important;
    }
    .mobile-nav {
        display: flex !important;
    }
}

@media (min-width: 769px) {
    .mobile-nav {
        display: none !important;
    }
}