/* CSS Variables for Premium Design System */
:root {
    --bg-dark: #09080f;
    --bg-card: rgba(20, 18, 35, 0.4);
    --border-color: rgba(125, 86, 244, 0.15);
    --border-focus: rgba(238, 111, 248, 0.4);
    
    --primary: #7D56F4;
    --primary-glow: rgba(125, 86, 244, 0.4);
    --secondary: #04B575;
    --secondary-glow: rgba(4, 181, 117, 0.3);
    --accent: #EE6FF8;
    --accent-glow: rgba(238, 111, 248, 0.3);
    
    --text-main: #FFFFFF;
    --text-muted: #9E9BB0;
    --text-dim: #605E72;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Fira Code', source-code-pro, Menlo, Monaco, Consolas, monospace;
}

/* Reset and Global Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
}

body {
    background: radial-gradient(circle at 50% 0%, #1c1535 0%, var(--bg-dark) 60%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(9, 8, 15, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-mark {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-main);
}

/* Typography & Layout Utility */
h1, h2, h3, h4 {
    font-weight: 800;
    letter-spacing: -0.5px;
}

span {
    color: var(--primary);
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    padding: 6rem 5% 4rem;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge {
    background: rgba(125, 86, 244, 0.15);
    border: 1px solid var(--primary);
    color: var(--text-main);
    padding: 0.35rem 0.85rem;
    border-radius: 99px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.85rem 1.75rem;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background: #6a43e4;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.85rem 1.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-focus);
    transform: translateY(-2px);
}

.btn-primary-sm {
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1.15rem;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.btn-primary-sm:hover {
    background: #6a43e4;
    box-shadow: 0 4px 10px var(--primary-glow);
}

/* Hero Terminal Component */
.hero-terminal {
    background: rgba(10, 8, 18, 0.65);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 1px 1px var(--border-color);
    backdrop-filter: blur(12px);
}

.terminal-header {
    background: rgba(20, 18, 30, 0.8);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-dot.red { background: #FF5F56; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #27C93F; }

.terminal-title {
    margin-left: auto;
    margin-right: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    color: #e0dff0;
    overflow-x: auto;
}

.term-prompt {
    color: var(--secondary);
    font-weight: bold;
}

.term-output {
    margin-top: 1rem;
    color: var(--text-muted);
}

/* Features Grid */
.features-section {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.25rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-focus);
    box-shadow: 0 10px 30px rgba(125, 86, 244, 0.08);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Desktop App Showcase */
.desktop-section {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}
.desktop-head { text-align: center; }
.desktop-head .badge { display: inline-block; }
.mock-controls { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.mock-toggle {
    background: rgba(255,255,255,0.04); color: var(--text-muted);
    border: 1px solid var(--border-color); border-radius: 99px;
    padding: 0.4rem 1.1rem; font: 600 0.85rem var(--font-sans); cursor: pointer;
}
.mock-toggle.active { background: var(--primary); color: #fff; border-color: transparent; }

/* The mock uses the real desktop design tokens */
.app-window {
    --bg:#fff; --sidebar:#f5f5f4; --fg:#1c1917; --muted:#5f5b57; --line:#e7e5e4;
    --acc:#0369a1; --selected:#e0f2fe; --hover:#f0efee; --danger:#b91c1c;
    max-width: 980px; margin: 0 auto; border-radius: 12px; overflow: hidden;
    background: var(--bg); color: var(--fg); border: 1px solid var(--line);
    box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 40px var(--primary-glow);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    transition: background .25s, color .25s;
}
.app-window.theme-dark {
    --bg:#171717; --sidebar:#1f1f1e; --fg:#f5f5f4; --muted:#a8a29e; --line:#3a3a38;
    --acc:#38bdf8; --selected:#0b2f45; --hover:#2a2a29; --danger:#f87171;
}
.app-titlebar { display:flex; align-items:center; gap:.5rem; padding:.7rem 1rem; background: var(--sidebar); border-bottom:1px solid var(--line); }
.app-title { margin: 0 auto; font-size:.8rem; color: var(--muted); }
.app-body { display:grid; grid-template-columns: 230px 1fr; min-height: 430px; }
.app-sidebar { background: var(--sidebar); border-right:1px solid var(--line); padding: 1rem .75rem; font-size: 13px; display:flex; flex-direction:column; gap:2px; }
.side-item { display:flex; align-items:center; gap:.6rem; padding:.4rem .6rem; border-radius:6px; }
.side-item.active { background: var(--selected); font-weight:600; }
.side-item b { margin-left:auto; font-weight:400; font-size:12px; color: var(--muted); }
.side-label { margin:1rem 0 .2rem; padding:0 .6rem; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:.05em; color: var(--muted); }
.si { width:14px; height:14px; border-radius:4px; display:inline-block; flex:none; }
.si.blue { background: var(--acc); } .si.amber { background:#d97706; } .si.gray { background: var(--muted); opacity:.6; }
.si.folder { background: var(--acc); opacity:.75; border-radius:3px 6px 3px 3px; }
.side-foot { margin-top:auto; padding:.6rem .6rem 0; font-size:12px; color: var(--muted); border-top:1px solid var(--line); }
.beta-pill { background: var(--selected); color: var(--acc); font-size:10px; font-weight:700; text-transform:uppercase; padding:1px 6px; border-radius:99px; }
.app-main { padding: 1.75rem 2rem; position:relative; }
.app-h { font-size:1.6rem; margin-bottom:1rem; display:flex; gap:.5rem; align-items:center; color: var(--fg); }
.app-h .star { color:#d97706; }
.app-sub { margin: 1.5rem 0 .5rem; font-size:.95rem; color: var(--fg); }
.task-list { list-style:none; }
.task-list li { display:flex; align-items:center; gap:.75rem; padding:.55rem .25rem; border-bottom:1px solid var(--line); font-size:14px; }
.cb { width:16px; height:16px; border:1.5px solid var(--muted); border-radius:50%; flex:none; }
.cb.done { background: var(--acc); border-color: var(--acc); box-shadow: inset 0 0 0 3px var(--bg); }
.t { flex:1; color: var(--fg); }
.t.done { text-decoration: line-through; color: var(--muted); }
.t small { display:block; font-size:12px; color: var(--muted); margin-top:2px; }
.tag { font-style:normal; font-size:11px; background: var(--selected); color: var(--acc); padding:1px 8px; border-radius:99px; }
.due { font-style:normal; font-size:12px; color: var(--muted); }
.due.late { color: var(--danger); font-weight:600; }
.palette { margin-top:1.5rem; width:fit-content; margin-left:auto; background: var(--bg); border:1px solid var(--line); border-radius:8px; padding:.55rem .8rem; font-size:12px; color: var(--muted); box-shadow:0 10px 25px rgba(0,0,0,.25); }
.palette span { background: var(--hover); color: var(--fg); padding:1px 6px; border-radius:4px; margin-right:.4rem; font-weight:600; }
.desktop-features { display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap:1.25rem; margin: 3.5rem 0 2.5rem; }
.d-feature { background: var(--bg-card); border:1px solid var(--border-color); border-radius:12px; padding:1.5rem; }
.d-feature h4 { font-size:1.05rem; margin-bottom:.5rem; }
.d-feature p { color: var(--text-muted); font-size:.92rem; line-height:1.55; }
.d-feature code, .dl-note code { font-family: var(--font-mono); color: var(--accent); }
.download-row { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:1rem; }
.dl-card { display:flex; flex-direction:column; gap:.25rem; text-decoration:none; color:#fff; padding:1.25rem 1.5rem; border-radius:12px; border:1px solid var(--border-color); background: rgba(125,86,244,.08); transition: all .2s; }
.dl-card:hover { transform: translateY(-3px); border-color: var(--border-focus); background: rgba(125,86,244,.16); }
.dl-card span { color: var(--text-muted); font-size:.85rem; }
.dl-note { text-align:center; color: var(--text-dim); font-size:.85rem; margin-top:1rem; }

/* Interactive Demo Section */
.demo-section {
    padding: 6rem 5%;
    background: rgba(12, 10, 22, 0.5);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    width: 100%;
}

.demo-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.demo-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-demo {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    text-align: left;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
    font-size: 0.95rem;
}

.btn-demo:hover {
    background: rgba(125, 86, 244, 0.05);
    color: white;
    border-color: var(--border-focus);
}

.btn-demo.active {
    background: var(--primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.interactive-terminal {
    background: rgba(5, 4, 8, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    min-height: 380px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.interactive-terminal .terminal-body {
    min-height: 320px;
    font-size: 0.95rem;
}

.typing-demo {
    color: var(--text-main);
    border-right: 2px solid var(--primary);
    animation: blink 0.75s step-end infinite;
    font-weight: 500;
}

.term-output-demo {
    margin-top: 1rem;
    color: #e0dff0;
    white-space: pre-wrap;
    line-height: 1.6;
}

/* TUI Showcase Section */
.tui-section {
    padding: 8rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.tui-showcase-container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.tui-showcase-text h2 {
    font-size: 2.75rem;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.tui-showcase-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.tui-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tui-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.tui-features li::before {
    content: "✓";
    color: var(--secondary);
    font-weight: bold;
    font-size: 1.1rem;
}

.tui-mockup {
    perspective: 1000px;
}

.tui-window {
    background: #020202;
    border: 2px solid var(--primary);
    border-radius: 8px;
    overflow: hidden;
    transform: rotateY(-5deg) rotateX(5deg);
    box-shadow: -15px 15px 30px rgba(0, 0, 0, 0.7), 0 0 20px var(--primary-glow);
    transition: transform 0.3s ease;
}

.tui-window:hover {
    transform: rotateY(0deg) rotateX(0deg) scale(1.02);
}

.tui-window-header {
    background: #111;
    border-bottom: 1px solid #222;
    padding: 0.65rem 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tui-window-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.tui-window-dot.red { background: #333; }
.tui-window-dot.yellow { background: #333; }
.tui-window-dot.green { background: #333; }

.tui-window-title {
    margin-left: auto;
    margin-right: auto;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: #555;
}

.tui-window-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    color: #eee;
}

/* TUI Colors Mockup */
.tui-header {
    background: var(--primary);
    color: white;
    display: inline-block;
    padding: 0 0.5rem;
    font-weight: bold;
}
.tui-date {
    color: var(--accent);
    font-weight: bold;
    display: inline-block;
}
.tui-progress {
    color: var(--text-muted);
}
.tui-green {
    color: var(--secondary);
    font-weight: bold;
}
.tui-orange {
    color: #FFA500;
    font-weight: bold;
}
.tui-magenta {
    color: var(--accent);
}
.tui-dim {
    color: var(--text-dim);
}
.tui-footer {
    color: var(--text-dim);
}

/* Installation Section */
.install-section {
    padding: 6rem 5%;
    max-width: 1000px;
    margin: 0 auto 6rem;
    width: 100%;
    text-align: center;
}

.install-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

.install-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    backdrop-filter: blur(8px);
}

.install-box h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.install-box code {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent);
    background: rgba(0, 0, 0, 0.4);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow-x: auto;
}

/* AI Config Info Panel */
.ai-config-info {
    background: linear-gradient(135deg, rgba(125, 86, 244, 0.05) 0%, rgba(238, 111, 248, 0.05) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: left;
    max-width: 800px;
    margin: 0 auto;
}

.ai-config-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ai-config-info h3::before {
    content: "🤖";
}

.ai-config-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.ai-config-info a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.ai-config-info a:hover {
    text-decoration: underline;
}

.config-snippet {
    background: #040308;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1.25rem;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #c5c2d5;
}

.config-snippet .comment {
    color: var(--text-dim);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 5%;
    text-align: center;
    background: rgba(5, 4, 8, 0.4);
    margin-top: auto;
}

footer p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Typing Caret Animation */
@keyframes blink {
    from, to { border-color: transparent }
    50% { border-color: var(--accent); }
}

/* Responsive Styling */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding-top: 4rem;
    }
    
    .tui-showcase-container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1.25rem 5%;
    }
    .nav-links {
        display: none; /* Mobile menu can be simplified for landing page */
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .demo-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .install-options {
        grid-template-columns: 1fr;
    }
    .app-body { grid-template-columns: 1fr; }
    .app-sidebar { display: none; }
    .app-main { padding: 1.25rem; }
    .palette { position: static; margin-top: 1.25rem; }
}

/* Terminal Simulator ANSI Highlighter Classes */
.t-purple { color: var(--accent); font-weight: bold; }
.t-green { color: var(--secondary); font-weight: bold; }
.t-bg-gray { background: rgba(255, 255, 255, 0.1); color: white; padding: 0 4px; border-radius: 3px; }
.t-red { color: #FF5F56; font-weight: bold; }
.t-magenta { color: var(--accent); font-weight: bold; }
.t-gray { color: var(--text-dim); }


.nav-links a.btn-primary-sm { color: #fff; }

.dl-card.soon { opacity: .55; }
.dl-card.soon:hover { transform: none; }