:root {
    --bg: #0d0d0d;
    --bg-soft: #131313;
    --bg-card: #161616;
    --bg-code: #0a0a0a;
    --line: #262626;
    --line-soft: #1d1d1d;
    --fg: #ececec;
    --fg-mid: #a9a9a9;
    --fg-dim: #818181;
    --orange: #ff6b1a;
    --orange-deep: #d94e00;
    --green: #3ddc84;
    --green-deep: #1fb05c;
    --font: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 22px; }
.wrap.narrow { max-width: 820px; }

a { color: var(--green); }

::selection { background: var(--green); color: #04120a; }

code {
    font-family: var(--mono);
    font-size: 0.86em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line-soft);
    padding: 1px 6px;
    border-radius: 5px;
    color: #ffd9c2;
}

/* ---------- topbar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(13, 13, 13, 0.88);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    display: flex;
    align-items: center;
    gap: 26px;
    height: 62px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--fg);
    font-family: var(--mono);
    font-weight: 600;
    letter-spacing: 0.4px;
    font-size: 17px;
}

.brand-mark { width: 30px; height: 30px; border-radius: 7px; }

.topnav {
    display: flex;
    gap: 4px;
    margin-left: 8px;
    flex: 1;
}

.topnav a {
    color: var(--fg-mid);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    padding: 7px 13px;
    border-radius: 7px;
    transition: color 0.15s, background 0.15s;
}

.topnav a:hover { color: var(--fg); background: rgba(255, 255, 255, 0.05); }

.topnav a.active { color: var(--orange); background: rgba(255, 107, 26, 0.1); }

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--fg-mid);
    text-decoration: none;
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    transition: all 0.15s;
    white-space: nowrap;
}

.github-link:hover { color: var(--fg); border-color: var(--green); }

/* ---------- views ---------- */
.view { display: none; }
.view.active { display: block; }

@media (prefers-reduced-motion: no-preference) {
    .view.active { animation: rise 0.4s ease-out; }
}

@keyframes rise {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: none; }
}

/* ---------- hero ---------- */
.hero {
    padding: 60px 0 40px;
    background:
        radial-gradient(900px 400px at 50% -100px, rgba(255, 107, 26, 0.10), transparent 70%),
        radial-gradient(700px 340px at 85% 0%, rgba(61, 220, 132, 0.07), transparent 70%);
    border-bottom: 1px solid var(--line-soft);
    text-align: center;
}

.hero-eyebrow {
    font-family: var(--mono);
    font-size: 12.5px;
    color: var(--fg-dim);
    letter-spacing: 0.4px;
    margin-bottom: 26px;
}

.hero-eyebrow .dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    margin-right: 6px;
}

.hero-ascii {
    font-family: var(--mono);
    font-size: 12px;
    line-height: 1.15;
    color: var(--orange);
    text-shadow: 0 0 14px rgba(255, 107, 26, 0.45);
    margin: 0 auto 30px;
    letter-spacing: 1px;
    width: max-content;
}

.hero h1 {
    font-size: clamp(26px, 5vw, 42px);
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: -0.5px;
    max-width: 760px;
    margin: 0 auto;
}

.hero-text {
    max-width: 650px;
    margin: 20px auto 0;
    color: var(--fg-mid);
    font-size: 17px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.btn {
    display: inline-block;
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 600;
    padding: 12px 22px;
    border-radius: 9px;
    text-decoration: none;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.btn-solid { background: var(--green); color: #04120a; }
.btn-solid:hover { background: var(--green-deep); transform: translateY(-1px); }

.btn-outline { background: transparent; border-color: var(--orange); color: var(--orange); }
.btn-outline:hover { background: var(--orange); color: #1a0700; }

.btn-ghost { border-color: var(--line); color: var(--fg-mid); background: var(--bg-soft); }
.btn-ghost:hover { color: var(--fg); border-color: var(--fg-dim); }

/* ---------- sections ---------- */
.section-title {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.3px;
    margin: 64px 0 10px;
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 9px;
    height: 9px;
    background: var(--orange);
    border-radius: 2px;
    margin-right: 12px;
    vertical-align: 3px;
}

.section-intro { color: var(--fg-mid); margin-bottom: 26px; max-width: 680px; }

/* cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 13px;
    padding: 22px 22px 24px;
    transition: border-color 0.18s, transform 0.18s;
}

.card:hover { border-color: var(--line); transform: translateY(-2px); }

.card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }

.card p { color: var(--fg-mid); font-size: 15px; }

/* cli demo */
.cli-demo {
    margin-top: 44px;
    border-radius: 12px;
    border: 1px solid var(--line);
    overflow: hidden;
    background: #0a0a0a;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
}

.cli-demo-head {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--line);
    padding: 10px 14px;
}

.cli-demo-head span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #3a3a3a;
}

.cli-demo-head span:nth-child(1) { background: var(--orange); }
.cli-demo-head span:nth-child(2) { background: #d9a23a; }
.cli-demo-head span:nth-child(3) { background: var(--green); }

.cli-demo-head code {
    margin-left: 8px;
    background: none;
    border: none;
    color: var(--fg-dim);
    font-size: 12px;
}

.cli-demo-body {
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.7;
    padding: 22px 24px;
    color: var(--fg);
    overflow-x: auto;
    white-space: pre;
}

.blink { animation: blink 1.1s steps(2, start) infinite; color: var(--green); }

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

/* why grid */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 24px 0 30px;
}

.why-item {
    background: var(--bg-card);
    border: 1px solid var(--line-soft);
    border-left: 3px solid var(--green);
    border-radius: 0 10px 10px 0;
    padding: 18px 18px 18px 20px;
}

.why-num {
    display: block;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--green);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.why-item p { color: var(--fg-mid); font-size: 15px; }

.note-strip {
    background: rgba(255, 107, 26, 0.07);
    border: 1px solid rgba(255, 107, 26, 0.25);
    border-left: 4px solid var(--orange);
    border-radius: 8px;
    padding: 16px 20px;
    color: var(--fg-mid);
    font-size: 15px;
    margin-top: 46px;
}

/* ---------- page head ---------- */
.page-kicker {
    font-family: var(--mono);
    font-size: 12.5px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--green);
    margin-bottom: 8px;
}

.page-head { margin: 52px 0 34px; }

.page-head h2 { font-size: 32px; font-weight: 800; letter-spacing: -0.5px; }

.page-desc { color: var(--fg-mid); margin-top: 8px; }

/* ---------- markdown README ---------- */
.markdown {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 42px 46px;
    font-size: 16px;
}

.md-title {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}

.markdown h3 {
    font-size: 23px;
    font-weight: 800;
    margin: 38px 0 12px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--line-soft);
    color: var(--fg);
}

.markdown h4 { font-size: 17px; font-weight: 700; margin: 24px 0 8px; }

.markdown p { margin: 13px 0; color: #d5d5d5; }
.markdown p strong { color: var(--fg); }

.markdown a { text-decoration: none; }
.markdown a:hover { text-decoration: underline; }

.markdown ul, .markdown ol { margin: 13px 0; padding-left: 26px; color: #d5d5d5; }
.markdown li { margin: 5px 0; }
.markdown li::marker { color: var(--orange); }

.markdown hr { border: 0; border-top: 1px solid var(--line); margin: 38px 0; }

.markdown blockquote {
    margin: 18px 0;
    padding: 14px 18px;
    border-left: 4px solid var(--orange);
    background: rgba(255, 107, 26, 0.06);
    border-radius: 0 8px 8px 0;
    color: var(--fg-mid);
}

.markdown pre {
    background: var(--bg-code);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px 20px;
    overflow-x: auto;
    margin: 16px 0;
    line-height: 1.6;
}

.markdown pre code {
    background: none;
    border: none;
    padding: 0;
    color: #d9d9d9;
    font-size: 13.5px;
}

.markdown pre.mermaid {
    background: var(--bg-soft);
    padding: 6px;
}

.markdown figure { margin: 20px 0; }
.markdown figure img {
    max-width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #000;
    display: block;
}
.markdown figcaption {
    font-family: var(--mono);
    font-size: 12.5px;
    color: var(--fg-dim);
    text-align: center;
    margin-top: 10px;
}

.markdown ul.task { list-style: none; padding-left: 4px; }
.markdown ul.task li::marker { content: ''; }
.markdown ul.task input[type="checkbox"] {
    accent-color: var(--green);
    margin-right: 10px;
    transform: translateY(2px);
}

.mermaid { color: #d9d9d9; }

/* ---------- idées ---------- */
.idea-columns {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 18px;
    margin-top: 8px;
}

.idea {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 13px;
    padding: 22px 22px 24px;
}

.idea-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.pill {
    font-family: var(--mono);
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--orange);
    background: rgba(255, 107, 26, 0.1);
    border: 1px solid rgba(255, 107, 26, 0.3);
    padding: 3px 9px;
    border-radius: 999px;
}

.idea-state { font-family: var(--mono); font-size: 11.5px; color: var(--fg-dim); }

.idea h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.idea p { color: var(--fg-mid); font-size: 14.5px; }

.idea-board {
    margin-top: 46px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-left: 4px solid var(--green);
    border-radius: 10px;
    padding: 22px 26px;
}

.idea-board h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.idea-board-note { color: var(--fg-mid); font-size: 14.5px; margin-bottom: 10px; }
.idea-board ul { margin: 10px 0; padding-left: 24px; color: #d5d5d5; }
.idea-board li { margin: 7px 0; }
.idea-board code { color: var(--green); }

.cta {
    margin-top: 46px;
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 36px 24px;
}

.cta h3 { font-size: 21px; font-weight: 800; margin-bottom: 8px; }
.cta p { color: var(--fg-mid); margin: 0 auto 22px; max-width: 520px; }

/* ---------- about ---------- */
.about { background: var(--bg-card); border: 1px solid var(--line); border-radius: 14px; padding: 32px 36px; }
.about p { color: #d5d5d5; margin: 14px 0; }

.facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin-top: 28px;
    border-top: 1px solid var(--line);
    padding-top: 24px;
}

.facts > div { background: var(--bg-soft); border: 1px solid var(--line-soft); border-radius: 9px; padding: 14px 16px; }
.facts dt { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 1px; color: var(--fg-dim); margin-bottom: 5px; }
.facts dd { font-size: 16px; font-weight: 700; color: var(--green); }

/* ---------- terminal ---------- */
.term {
    background: #0a0f0a;
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
    display: flex;
    flex-direction: column;
    max-height: 620px;
}

.term-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--line);
    padding: 11px 14px;
    flex-shrink: 0;
}

.term-bar span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #3a3a3a;
}

.term-bar span:nth-child(1) { background: var(--orange); }
.term-bar span:nth-child(2) { background: #d9a23a; }
.term-bar span:nth-child(3) { background: var(--green); }

.term-bar code {
    margin-left: 8px;
    background: none;
    border: none;
    color: var(--fg-dim);
    font-size: 12px;
}

.term-body {
    padding: 18px 20px;
    min-height: 320px;
    max-height: 460px;
    overflow-y: auto;
    font-family: var(--mono);
    font-size: 13.5px;
    line-height: 1.65;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.012) 50%, rgba(0, 0, 0, 0.012) 50%);
    background-size: 100% 4px;
    flex: 1;
}

.term-line { color: #d8e6dc; white-space: pre-wrap; word-break: break-word; min-height: 1em; }

.term-line.t-orange { color: var(--orange); text-shadow: 0 0 10px rgba(255, 107, 26, 0.35); }
.term-line.t-cmd { color: #aef0cf; }
.term-line.t-err { color: #ff8f82; }
.term-line.t-ok { color: var(--green); }
.term-line.t-dim { color: var(--fg-dim); }
.term-line.t-acc { color: #ffb277; }
.term-line.t-green { color: var(--green-soft); font-weight: 600; }

.term-q { color: var(--orange-soft); white-space: pre-wrap; word-break: break-word; }

.term-input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--line);
    padding: 10px 14px;
    background: #070b07;
    flex-shrink: 0;
}

.term-prompt {
    font-family: var(--mono);
    font-size: 13.5px;
    color: var(--green);
    font-weight: 600;
    white-space: nowrap;
}

.term-input-row input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--fg);
    font-family: var(--mono);
    font-size: 13.5px;
    caret-color: var(--green);
}

.term-input-row input::placeholder { color: var(--fg-dim); }

.term-body::-webkit-scrollbar { width: 9px; }
.term-body::-webkit-scrollbar-thumb { background: #2a2f2a; border-radius: 6px; }
.term-body::-webkit-scrollbar-track { background: transparent; }

.term-help { margin-top: 26px; }

.term-help h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--fg);
}

.term-cmds {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 8px;
    padding: 0;
}

.term-cmds li {
    background: var(--bg-card);
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    padding: 9px 13px;
    font-size: 14px;
    color: var(--fg-mid);
}

.term-cmds code {
    display: inline-block;
    min-width: 24px;
    text-align: center;
    margin-right: 8px;
    background: rgba(61, 220, 132, 0.12);
    color: var(--green);
    border: 1px solid rgba(61, 220, 132, 0.25);
    border-radius: 5px;
    font-weight: 700;
}

@media (max-width: 640px) {
    .term-body { min-height: 260px; }
}

/* ---------- footer ---------- */
.footer {
    margin-top: 70px;
    border-top: 1px solid var(--line);
    background: var(--bg-soft);
    padding: 26px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    color: var(--fg-dim);
    font-size: 14px;
}

.footer-links { display: flex; gap: 8px; font-size: 14px; }
.footer-links a { color: var(--fg-mid); text-decoration: none; }
.footer-links a:hover { color: var(--fg); }

@media (max-width: 720px) {
    .topnav { gap: 0; overflow-x: auto; }
    .topnav a { padding: 7px 10px; font-size: 14px; }
    .github-link { display: none; }
    .topbar-inner { gap: 12px; }
    .markdown { padding: 24px 18px; }
    .about { padding: 24px 20px; }
    .hero-ascii { font-size: 8px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .btn { text-align: center; }
    .footer-inner { flex-direction: column; text-align: center; }
}

/* ---------- language switch ---------- */
.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 3px;
    white-space: nowrap;
    flex-shrink: 0;
}

.lang-btn {
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--fg-mid);
    background: transparent;
    border: none;
    padding: 4px 11px;
    border-radius: 6px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}

.lang-btn:hover { color: var(--fg); }

.lang-btn.active { color: #04120a; background: var(--green); }

@media (max-width: 720px) {
    .lang-btn { padding: 4px 8px; font-size: 11.5px; }
}