/* ── Reset & Base ──────────────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg:        #0b0d17;
    --bg-card:   #111425;
    --bg-nav:    rgba(11, 13, 23, .85);
    --surface:   #171a2e;
    --border:    #1e2240;
    --text:      #c9cde8;
    --text-dim:  #7b82a8;
    --heading:   #eaedf9;
    --accent:    #6c5ce7;
    --accent2:   #a29bfe;
    --glow:      rgba(108, 92, 231, .35);
    --success:   #00cec9;
    --radius:    12px;
    --max-w:     1140px;
    --transition: .3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: var(--accent2); text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }

code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    background: var(--surface);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .85em;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Navigation ───────────────────────────────────────────── */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.nav-container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading);
    display: flex;
    align-items: center;
    gap: 4px;
}
.logo span { color: var(--accent2); }

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-links a {
    color: var(--text-dim);
    font-size: .9rem;
    font-weight: 500;
    transition: color var(--transition);
}
.nav-links a:hover { color: #fff; }

.btn-nav {
    background: var(--accent);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 8px;
    font-weight: 600;
}
.btn-nav:hover { background: var(--accent2); }

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 24px 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 50% 40%, var(--glow) 0%, transparent 70%),
        radial-gradient(circle at 80% 20%, rgba(162, 155, 254, .12) 0%, transparent 50%);
    z-index: 0;
}

.hero-content { position: relative; z-index: 1; max-width: 720px; }

#hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--heading);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 20px;
}
.accent { color: var(--accent2); }

.tagline {
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    color: var(--text-dim);
    max-width: 560px;
    margin: 0 auto 32px;
}

.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    cursor: pointer;
    border: none;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 24px var(--glow);
}
.btn-primary:hover { background: var(--accent2); color: #fff; }

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent2); color: #fff; }

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 48px;
}
.stat { text-align: center; }
.stat-value { display: block; font-size: 1.5rem; font-weight: 700; color: var(--heading); }
.stat-label { font-size: .8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

.scroll-hint {
    position: absolute;
    bottom: 28px;
    animation: bounce 2s infinite;
    color: var(--text-dim);
    font-size: 1.4rem;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(8px); }
}

/* ── Sections ─────────────────────────────────────────────── */
section {
    padding: 100px 0;
}
section:nth-child(odd) { background: var(--bg); }
section:nth-child(even) { background: var(--surface); }

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--heading);
    text-align: center;
    margin-bottom: 12px;
}
.section-subtitle {
    text-align: center;
    color: var(--text-dim);
    max-width: 520px;
    margin: 0 auto 56px;
    font-size: 1.05rem;
}

/* ── Feature Cards ────────────────────────────────────────── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(108, 92, 231, .15);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.15rem;
    color: var(--heading);
    margin-bottom: 8px;
}
.feature-card p {
    color: var(--text-dim);
    font-size: .92rem;
    line-height: 1.55;
}

/* ── Feature List ────────────────────────────────────────── */
.feature-list-section {
    margin-top: 64px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 36px;
}
.feature-list-title {
    font-size: 1.4rem;
    color: var(--heading);
    text-align: center;
    margin-bottom: 32px;
    font-weight: 700;
}
.feature-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 32px;
}
.feature-list-col h4 {
    color: var(--accent2);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.feature-list {
    list-style: none;
    padding: 0;
}
.feature-list li {
    color: var(--text-dim);
    font-size: .88rem;
    line-height: 1.5;
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}
.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
    font-size: .8rem;
}

/* ── Video Showcase ──────────────────────────────────────── */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: 0 8px 48px rgba(108, 92, 231, .2);
    max-width: 900px;
    margin: 0 auto;
}
.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
}
.video-fallback {
    text-align: center;
    color: var(--text-dim);
    font-size: .85rem;
    margin-top: 14px;
}
.video-fallback a {
    color: var(--accent2);
    font-weight: 600;
}

/* ── Screenshots ─────────────────────────────────────────── */
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 28px;
}
.screenshot-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.screenshot-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(108, 92, 231, .18);
}
.screenshot-label {
    padding: 14px 20px;
    font-weight: 600;
    font-size: .95rem;
    color: var(--heading);
    background: rgba(17, 20, 37, .8);
    border-bottom: 1px solid var(--border);
}
.screenshot-card img {
    width: 100%;
    height: auto;
    display: block;
    min-height: 120px;
    background: var(--surface);
}
.screenshot-card .img-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--text-dim);
    font-size: .85rem;
    text-align: center;
    padding: 24px;
    background: var(--surface);
}

/* ── Steps ────────────────────────────────────────────────── */
.steps {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px var(--glow);
}

.step-content h3 {
    color: var(--heading);
    font-size: 1.1rem;
    margin-bottom: 4px;
}
.step-content p {
    color: var(--text-dim);
    font-size: .92rem;
}

/* ── Config Block ─────────────────────────────────────────── */
.config-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    overflow-x: auto;
    max-width: 680px;
    margin: 0 auto;
}
.config-block pre {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: .85rem;
    line-height: 1.7;
    color: var(--text);
}
.config-block .c { color: #5c6370; }
.config-block .k { color: var(--accent2); }
.config-block .s { color: var(--success); }
.config-block .b { color: #f39c12; }
.config-block .n { color: #e17055; }

/* ── Install Tabs ─────────────────────────────────────────── */
.install-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 28px;
}

.tab {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 10px 22px;
    border-radius: 8px;
    cursor: pointer;
    font-size: .9rem;
    font-weight: 600;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.tab:hover { color: #fff; border-color: var(--accent); }
.tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.install-content { display: none; max-width: 720px; margin: 0 auto; }
.install-content.active { display: block; }

.loader-note {
    text-align: center;
    color: var(--text-dim);
    font-size: .85rem;
    margin-top: 12px;
}

/* Terminal */
.terminal {
    background: #1a1d2e;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.terminal-header {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 12px 16px;
    background: #13152380;
    border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red    { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #27c93f; }
.terminal-title { margin-left: 8px; font-size: .75rem; color: var(--text-dim); }
.terminal-body {
    padding: 20px 24px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: .82rem;
    line-height: 2;
}
.terminal-body p { white-space: nowrap; overflow-x: auto; }
.prompt { color: var(--success); }
.cmd    { color: var(--accent2); }

/* ── Footer ───────────────────────────────────────────────── */
footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border);
    background: var(--bg);
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}
.footer-brand p { color: var(--text-dim); font-size: .85rem; margin-top: 4px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-dim); font-size: .85rem; }
.footer-links a:hover { color: var(--accent2); }
.footer-copy { color: var(--text-dim); font-size: .75rem; opacity: .7; }

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    section { padding: 64px 0; }

    .features-grid { grid-template-columns: 1fr; }

    .feature-list-grid { grid-template-columns: 1fr 1fr; }

    .screenshot-grid { grid-template-columns: 1fr; }

    .hero-stats { gap: 24px; }

    .terminal-body { font-size: .72rem; }
}

@media (max-width: 480px) {
    #hero h1 { font-size: 2rem; }
    .tagline { font-size: .95rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .config-block { padding: 16px; }
    .config-block pre { font-size: .75rem; }
    .feature-list-grid { grid-template-columns: 1fr; }
    .feature-list-section { padding: 24px 20px; }
}