/* ===========================
   HOP2 — OpenClaw-inspired redesign
   Aesthetic: editorial terminal minimal
   Fonts: Space Mono + Syne
=========================== */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;600;700;800&display=swap');

@import url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-sans/style.css');
@import url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-mono/style.css');


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

:root {
    --bg:        #0c0c0c;
    --bg-alt:    #111111;
    --fg:        #e8e8e8;
    --fg-muted:  #666;
    --accent:    #00ff88;
    --accent-dim: rgba(0,255,136,0.12);
    --accent-glow: rgba(0,255,136,0.25);
    --border:    #222;
    --border-hover: #333;
    --code-bg:   #141414;
    --max-w:     900px;
    --section-pad: 6rem 2rem;
    --font-mono: 'Geist Mono', monospace;
    --font-sans: 'Geist', sans-serif;
}

html {
    scroll-behavior: smooth;
    scroll-snap-type: y mandatory;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ---- SECTIONS ---- */
.section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    scroll-snap-align: start;
    padding: var(--section-pad);
}

.section-alt {
    background: var(--bg-alt);
}

.section-inner {
    width: 100%;
    max-width: var(--max-w);
}

.section-header {
    margin-bottom: 3.5rem;
    text-align: center;
}

.section-marker {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--fg-muted);
    font-size: 1.05rem;
}

/* ---- HERO ---- */
.hero {
    background: var(--bg);
    position: relative;
    overflow: hidden;
    padding: 4rem 2rem 5rem;
}

.hero::before {
    content: '';
    position: absolute;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0,255,136,0.06) 0%, transparent 65%);
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

.hero-inner {
    width: 100%;
    max-width: var(--max-w);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
    position: relative;
    z-index: 1;
}

.hero-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--fg-muted);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 0.3rem 1rem;
    margin-bottom: 2rem;
    letter-spacing: 0.08em;
}

.hero-title-row {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 0.75rem;
}

.logo {
    width: 64px;
    height: 64px;
    filter: drop-shadow(0 0 20px var(--accent-glow));
    animation: float 4s ease-in-out infinite;
    flex-shrink: 0;
}

h1 {
    font-size: clamp(3.5rem, 10vw, 6rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--accent) 0%, #00d470 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.tagline {
    font-size: 1.15rem;
    color: var(--fg-muted);
    margin-bottom: 2.5rem;
    font-weight: 400;
}

/* ---- INSTALL HERO ---- */
.install-hero {
    width: 100%;
    max-width: 580px;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
    text-align: left;
    transition: border-color 0.2s;
}

.install-hero:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent-dim), 0 8px 32px rgba(0,0,0,0.4);
}

.install-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

.install-cmd {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.install-cmd .prompt {
    color: var(--accent);
    user-select: none;
}

.cmd-text {
    color: #e6ffe6;
    flex: 1;
    font-weight: 700;
}

.copy-inline {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg-muted);
    cursor: pointer;
    padding: 0.3rem 0.4rem;
    display: flex;
    align-items: center;
    transition: all 0.15s;
    flex-shrink: 0;
}

.copy-inline svg {
    width: 14px;
    height: 14px;
}

.copy-inline:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-dim);
}

.copy-inline.copied {
    color: var(--accent);
    border-color: var(--accent);
}

.install-sub {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--fg-muted);
    margin-top: 0.6rem;
}

.install-sub code {
    color: var(--fg);
    background: rgba(255,255,255,0.06);
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

/* ---- BUTTONS ---- */
.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    background: var(--accent);
    color: #000;
    display: inline-block;
    letter-spacing: 0.02em;
}

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

.btn-ghost {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

/* ---- VIDEO ---- */
.video-wrap {
    width: 100%;
    max-width: 860px;
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--code-bg);
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}

.video-wrap video {
    width: 100%;
    display: block;
}

.video-controls {
    position: absolute;
    top: 14px;
    right: 14px;
    display: flex;
    gap: 8px;
}

.video-controls button {
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: white;
    transition: background 0.2s;
}

.video-controls button svg {
    width: 18px;
    height: 18px;
}

.video-controls button:hover {
    background: rgba(0,0,0,0.85);
    border-color: var(--accent);
    color: var(--accent);
}

/* ---- TERMINAL ---- */
.terminal {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.5rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    position: relative;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.terminal:hover {
    border-color: var(--border-hover);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.terminal-topbar {
    display: flex;
    gap: 6px;
    margin-bottom: 1rem;
}

.terminal-topbar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
}

.terminal-topbar span:nth-child(1) { background: #ff5f57; }
.terminal-topbar span:nth-child(2) { background: #ffbd2e; }
.terminal-topbar span:nth-child(3) { background: #28c93f; }

.terminal pre {
    white-space: pre-wrap;
    line-height: 1.9;
}

.terminal .p { color: var(--accent); }
.terminal .k { color: #e6ffe6; font-weight: 700; }
.terminal .c { color: var(--fg-muted); font-style: italic; }

.copy-btn {
    position: absolute;
    top: 0.65rem;
    right: 0.75rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 5px;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s;
    z-index: 5;
}

.terminal:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

.copy-btn.copied {
    opacity: 1;
    background: var(--accent-dim);
    border-color: var(--accent);
}

.terminal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* ---- CARDS ---- */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.card {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, var(--accent-dim) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.card:hover::after {
    opacity: 1;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

.card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.card p {
    font-size: 0.9rem;
    color: var(--fg-muted);
    line-height: 1.7;
    font-family: var(--font-sans);
}

/* ---- STEPS ---- */
.steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-num {
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
    font-family: var(--font-mono);
}

.step-body {
    flex: 1;
}

.step-body h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

/* ---- COMMUNITY ---- */
.community-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 3rem;
}

.community-card {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.2s;
    text-align: center;
}

.community-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}

.community-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.community-card p {
    color: var(--fg-muted);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
}

/* ---- LATEST COMMIT ---- */
.latest-commit {
    text-align: center;
    margin-bottom: 3rem;
}

.latest-commit a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--fg-muted);
    text-decoration: none;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.latest-commit a:hover {
    color: var(--accent);
}

#commit-icon {
    display: inline-block;
    transition: transform 0.5s ease;
    font-size: 1rem;
}

.latest-commit a:hover #commit-icon {
    transform: rotate(360deg);
}

/* ---- FOOTER ---- */
footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    width: 100%;
}

footer p {
    font-size: 0.85rem;
    color: var(--fg-muted);
}

footer a {
    color: var(--fg-muted);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--accent);
}

.footer-links {
    margin-top: 0.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

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

/* ---- DOT NAV ---- */
.dot-nav {
    position: fixed;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    z-index: 100;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-hover);
    border: 1px solid var(--border);
    display: block;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.dot::after {
    content: attr(data-label);
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--accent);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.dot:hover::after,
.dot.active::after {
    opacity: 1;
}

.dot:hover,
.dot.active {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.4);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* ---- SCROLL TOP ---- */
.scroll-top {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: var(--code-bg);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    z-index: 100;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.2s;
    pointer-events: none;
    font-family: var(--font-mono);
}

.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-top:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

/* ---- ANIMATIONS ---- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 700px) {
    :root { --section-pad: 4rem 1.25rem; }

    .terminal-grid,
    .cards-grid,
    .community-grid {
        grid-template-columns: 1fr;
    }

    .hero-title-row { flex-direction: column; gap: 0.75rem; }
    .logo { width: 52px; height: 52px; }
    h1 { font-size: 3.5rem; }

    .install-cmd { font-size: 0.8rem; flex-wrap: wrap; }
    .cmd-text { font-size: 0.78rem; }

    .dot-nav { display: none; }
    .scroll-top { right: 1rem; bottom: 1rem; }
}