:root {
    --bg-main: #080a0c;
    --bg-secondary: #0d1114;
    --text-primary: #97b8a6;
    --text-bright: #daf2e5;
    --text-muted: #4f6c5e;
    --accent-primary: #58f29d;
    /* Favicon mint green */
    --accent-secondary: #2abf75;
    /* Deeper supporting green */
    --accent-danger: #ef4444;
    /* Muted red */
    --accent-glow: rgba(88, 242, 157, 0.2);
    --font-mono: 'JetBrains Mono', monospace;
    --border-color: #1a3024;
    --border-highlight: #274533;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
    position: relative;
    /* Subtle radial gradient */
    background-image: radial-gradient(circle at 50% 10%, #0c1812 0%, var(--bg-main) 80%);
}

a {
    color: var(--accent-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--accent-primary);
    text-shadow: 0 0 6px var(--accent-glow);
}

/* Subdued scanlines overlay */
.scanlines::before {
    content: " ";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%);
    z-index: 1000;
    background-size: 100% 4px;
    pointer-events: none;
    opacity: 0.6;
}

/* Boot Sequence */
.boot-sequence {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    height: 100vh;
    width: 100vw;
    background: var(--bg-main);
    color: var(--accent-primary);
    padding: 40px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    font-size: 1.1rem;
    opacity: 0.9;
}

.terminal-output {
    white-space: pre-wrap;
    width: 100%;
    max-width: 800px;
}

/* TUI Wrapper */
.tui-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Nav */
.tui-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px dotted var(--border-color);
    margin-bottom: 30px;
}

.nav-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: -0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 15px;
}

.nav-btn {
    color: var(--text-muted);
}

.nav-btn:hover {
    color: var(--text-bright);
}

/* Window */
.tui-window {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    overflow: hidden;
}

.tui-window-header {
    background: #0b0f13;
    padding: 8px 15px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-highlight);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tui-window-title {
    color: var(--text-primary);
}

.tui-window-controls {
    letter-spacing: 2px;
}

.tui-window-body {
    padding: 40px;
}

/* Sections */
.ascii-box {
    margin-bottom: 50px;
}

.mt-2 {
    margin-top: 2rem;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-bright);
    border-bottom: 1px dotted var(--border-color);
    padding-bottom: 8px;
    display: inline-block;
    letter-spacing: 0.5px;
}

.accent {
    color: var(--accent-primary);
}

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

.warning {
    color: var(--accent-danger);
}

/* Intro */
.hero-title {
    font-size: 2rem;
    margin-bottom: 12px;
    color: var(--text-bright);
    letter-spacing: -1px;
}

.typewriter-text {
    color: var(--text-primary);
    margin-bottom: 35px;
    max-width: 600px;
}

/* Glitch - Made more subtle */
.glitched {
    position: relative;
    display: inline-block;
}

.glitch {
    position: relative;
    display: inline-block;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    opacity: 0.7;
    pointer-events: none;
}

.glitch::before {
    left: 1px;
    text-shadow: -1px 0 var(--accent-secondary);
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim-2 4s infinite linear alternate-reverse;
}

.glitch::after {
    left: -1px;
    text-shadow: 1px 0 var(--accent-primary);
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 3s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% {
        clip: rect(10px, 9999px, 86px, 0);
    }

    5% {
        clip: rect(88px, 9999px, 12px, 0);
    }

    10% {
        clip: rect(4px, 9999px, 82px, 0);
    }

    15% {
        clip: rect(15px, 9999px, 5px, 0);
    }

    20% {
        clip: rect(23px, 9999px, 98px, 0);
    }

    25% {
        clip: rect(98px, 9999px, 63px, 0);
    }

    100% {
        clip: rect(98px, 9999px, 63px, 0);
    }
}

@keyframes glitch-anim-2 {
    0% {
        clip: rect(65px, 9999px, 100px, 0);
    }

    5% {
        clip: rect(52px, 9999px, 74px, 0);
    }

    10% {
        clip: rect(79px, 9999px, 85px, 0);
    }

    15% {
        clip: rect(75px, 9999px, 5px, 0);
    }

    20% {
        clip: rect(28px, 9999px, 12px, 0);
    }

    100% {
        clip: rect(28px, 9999px, 12px, 0);
    }
}

/* Data Flow Animation */
.data-flow {
    margin: 30px 0;
    padding: 20px;
    background: #0b0f13;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
}

.data-seed {
    font-weight: 700;
    margin-bottom: 12px;
}

.highlight {
    color: var(--bg-main);
    background: var(--text-primary);
    padding: 2px 6px;
    border-radius: 2px;
    font-size: 0.9em;
}

.data-arrows {
    padding-left: 15px;
    line-height: 1.8;
}

.data-arrows div {
    opacity: 0.7;
    transition: opacity 0.3s, color 0.3s;
}

.data-arrows div:hover {
    opacity: 1;
    color: var(--text-bright);
}

.data-arrows i {
    width: 20px;
    color: var(--accent-primary);
    opacity: 0.8;
}

/* Install command */
.install-section {
    margin-top: 40px;
    background: #0b0f13;
    padding: 18px;
    border-left: 2px solid var(--accent-primary);
    border-radius: 0 4px 4px 0;
}

.comment {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 10px;
}

.branch-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.branch-btn {
    border: 1px solid var(--border-highlight);
    background: #080a0c;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.branch-btn:hover {
    border-color: var(--accent-secondary);
    color: var(--text-bright);
}

.branch-btn.active {
    color: var(--bg-main);
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    font-weight: 700;
}

.cmd-prompt {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #080a0c;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
}

.prompt-symbol {
    color: var(--text-muted);
}

.install-cmd {
    flex-grow: 1;
    color: var(--text-bright);
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 2px;
    font-size: 0.9rem;
}

.install-cmd::-webkit-scrollbar {
    height: 4px;
}

.install-cmd::-webkit-scrollbar-thumb {
    background: var(--border-highlight);
    border-radius: 2px;
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s;
    padding: 4px;
}

.copy-btn:hover {
    color: var(--text-bright);
}

.copy-feedback {
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--accent-primary);
    min-height: 1.2em;
    opacity: 0.8;
}

/* Agent Section */
.agent-quickstart {
    margin-top: 20px;
    margin-bottom: 20px;
    background: #0b0f13;
    padding: 16px;
    border-left: 2px solid var(--accent-secondary);
    border-radius: 0 4px 4px 0;
}

.agent-grid .feature-item code {
    color: var(--text-bright);
}

/* Features Grid */
.grid-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 15px;
    margin-top: 25px;
}

.feature-item {
    border: 1px solid var(--border-color);
    padding: 20px;
    background: #0b0f13;
    transition: background 0.2s, border-color 0.2s;
    border-radius: 4px;
}

.feature-item:hover {
    border-color: var(--border-highlight);
    background: #0c1812;
}

.feature-item i {
    font-size: 1.4rem;
    color: var(--accent-primary);
    margin-bottom: 15px;
    opacity: 0.8;
}

.feature-item h3 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--text-bright);
}

.feature-item p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* Tree View */
.tree-view {
    margin: 25px 0;
    padding: 20px;
    background: #0b0f13;
    border: 1px solid var(--border-color);
    border-left: 2px solid var(--text-muted);
    line-height: 1.7;
    border-radius: 0 4px 4px 0;
    font-size: 0.9rem;
}

.tree-root i,
.tree-node i,
.tree-leaf i {
    color: var(--text-muted);
    margin-right: 8px;
}

.tree-branch {
    padding-left: 20px;
}

.tree-leaf {
    padding-left: 24px;
}

/* Info Blocks */
.info-blocks {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 25px;
}

.info-block {
    flex: 1;
    min-width: 250px;
    border: 1px dotted var(--border-color);
    padding: 20px;
    background: transparent;
    border-radius: 4px;
}

.info-block h3 {
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-bright);
}

.info-block p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.graph-snippet {
    margin-top: 10px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-left: 2px solid var(--accent-secondary);
    border-radius: 4px;
    background: rgba(8, 10, 12, 0.45);
    color: var(--text-primary);
    font-size: 0.82rem;
    line-height: 1.55;
    overflow-x: auto;
}

/* Footer */
.tui-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dotted var(--border-color);
    padding: 20px 0 10px;
    margin-top: 40px;
    font-size: 0.8rem;
}

.status-bar {
    display: flex;
    gap: 15px;
    align-items: center;
    color: var(--text-muted);
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-item i {
    font-size: 0.75rem;
}

.footer-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.separator {
    color: var(--border-color);
}

@media (max-width: 768px) {
    .tui-nav {
        flex-direction: column;
        gap: 15px;
    }

    .info-blocks {
        flex-direction: column;
    }

    .tui-footer {
        flex-direction: column;
        gap: 15px;
    }

    .tui-window-body {
        padding: 20px;
    }
}