/* TreeLine — landing page. Tokens do design system do app (Fluent/Win11 adaptado). */

:root {
  --radius-sm: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --font: "Segoe UI Variable", Inter, system-ui, "Ubuntu", -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, "Cascadia Code", Menlo, monospace;
  --motion: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --maxw: 1160px;
}

/* Tema escuro (padrão) */
html[data-theme="dark"] {
  color-scheme: dark;
  --bg-app: #101014;
  --bg-2: #16161c;
  --bg-panel: #1c1c23;
  --bg-elev: #23232c;
  --border: rgba(255, 255, 255, 0.09);
  --border-hl: rgba(255, 255, 255, 0.14);
  --text-1: #f5f6fb;
  --text-2: #a7adbd;
  --accent: #7b8cff;
  --accent-2: #e06ea8;
  --accent-ink: #0b0b12;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 18px 50px rgba(0, 0, 0, 0.55);
  --code-bg: #0c0c11;
  --hero-glow: radial-gradient(60% 60% at 70% 20%, rgba(123, 140, 255, 0.22), transparent 70%);
}

/* Tema claro */
html[data-theme="light"] {
  color-scheme: light;
  --bg-app: #f4f5f9;
  --bg-2: #eceef5;
  --bg-panel: #ffffff;
  --bg-elev: #ffffff;
  --border: rgba(16, 18, 40, 0.1);
  --border-hl: rgba(16, 18, 40, 0.16);
  --text-1: #171a24;
  --text-2: #5b6175;
  --accent: #4f5fe0;
  --accent-2: #c94e90;
  --accent-ink: #ffffff;
  --shadow-1: 0 1px 2px rgba(16, 18, 40, 0.08), 0 18px 44px rgba(16, 18, 40, 0.14);
  --code-bg: #0f1120;
  --hero-glow: radial-gradient(60% 60% at 70% 20%, rgba(79, 95, 224, 0.14), transparent 70%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg-app);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
code, kbd { font-family: var(--mono); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 800px; }
.center { text-align: center; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0;
}
.skip:focus { left: 0; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-app) 82%, transparent);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 20px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand img { border-radius: 8px; }
.brand-name { font-size: 1.05rem; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 8px 12px; border-radius: var(--radius-sm); color: var(--text-2);
  font-size: 0.92rem; font-weight: 500; transition: color var(--motion), background var(--motion);
}
.nav a:hover { color: var(--text-1); background: color-mix(in srgb, var(--text-1) 8%, transparent); }
.nav-gh { display: inline-flex; align-items: center; gap: 7px; }
.theme-toggle, .menu-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px;
  border: 1px solid var(--border); background: var(--bg-panel); color: var(--text-1);
  border-radius: var(--radius-sm); cursor: pointer; transition: transform var(--motion), border-color var(--motion);
}
.theme-toggle:hover, .menu-btn:hover { border-color: var(--border-hl); transform: translateY(-1px); }
.theme-toggle .i-moon { display: none; }
html[data-theme="dark"] .theme-toggle .i-sun { display: none; }
html[data-theme="dark"] .theme-toggle .i-moon { display: block; }
.menu-btn { display: none; }

/* ---------- Language switcher ---------- */
.lang {
  display: inline-flex; align-items: center; gap: 1px; padding: 2px;
  border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-panel);
}
.lang a {
  padding: 5px 8px; border-radius: 5px; font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.03em; color: var(--text-2); transition: color var(--motion), background var(--motion);
}
.lang a:hover { color: var(--text-1); background: color-mix(in srgb, var(--text-1) 8%, transparent); }
.lang a[aria-current="true"] { color: var(--accent-ink); background: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 22px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform var(--motion), box-shadow var(--motion), background var(--motion), border-color var(--motion);
}
.btn-primary { background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--accent-2))); color: var(--accent-ink); box-shadow: 0 10px 30px color-mix(in srgb, var(--accent) 38%, transparent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px color-mix(in srgb, var(--accent) 48%, transparent); }
.btn-ghost { background: color-mix(in srgb, var(--text-1) 4%, transparent); color: var(--text-1); border-color: var(--border-hl); }
.btn-ghost:hover { transform: translateY(-2px); background: color-mix(in srgb, var(--text-1) 8%, transparent); }
.btn:focus-visible, .theme-toggle:focus-visible, .menu-btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 76px 0 40px; background-image: var(--hero-glow); }
.hero-grid { display: grid; grid-template-columns: 1.02fr 1.1fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 0.82rem; font-weight: 600; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.08em; margin: 0 0 18px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: #38d39f; box-shadow: 0 0 0 4px rgba(56, 211, 159, 0.18); }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.8rem); line-height: 1.04; letter-spacing: -0.03em; margin: 0 0 20px; }
.grad { background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.1rem; color: var(--text-2); max-width: 34em; margin: 0 0 28px; }
.lede em { color: var(--text-1); font-style: normal; font-weight: 600; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-meta { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 22px 0 0; margin: 0; color: var(--text-2); font-size: 0.86rem; }
.hero-meta li { position: relative; padding-left: 16px; }
.hero-meta li::before { content: ""; position: absolute; left: 0; top: 50%; width: 6px; height: 6px; margin-top: -3px; border-radius: 50%; background: var(--accent); }

/* janela */
.hero-shot { position: relative; }
.window {
  position: relative; z-index: 1; border: 1px solid var(--border-hl); border-radius: var(--radius-lg);
  overflow: hidden; background: var(--bg-panel); box-shadow: var(--shadow-1);
}
.window-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--bg-elev); border-bottom: 1px solid var(--border); }
.wdot { width: 11px; height: 11px; border-radius: 50%; }
.wd1 { background: #ff5f57; } .wd2 { background: #febc2e; } .wd3 { background: #28c840; }
.window-title { margin-left: 10px; font-size: 0.78rem; color: var(--text-2); }
.window img { width: 100%; }
.glow { position: absolute; inset: 12% 8% -6% 8%; background: radial-gradient(50% 60% at 50% 50%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 70%); filter: blur(40px); z-index: 0; }

/* ---------- Trust ---------- */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 56px; }
.trust-item { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 18px; }
.trust-item strong { display: block; font-size: 1.15rem; }
.trust-item span { color: var(--text-2); font-size: 0.86rem; }

/* ---------- Sections ---------- */
.sec { padding: 84px 0; }
.band { padding: 84px 0; background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sec-title { font-size: clamp(1.7rem, 3.4vw, 2.5rem); letter-spacing: -0.02em; margin: 0 0 12px; }
.sec-sub { color: var(--text-2); font-size: 1.05rem; max-width: 46em; margin: 0 0 36px; }

/* ---------- Table ---------- */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-panel); }
table.cmp { width: 100%; border-collapse: collapse; }
.cmp th, .cmp td { text-align: left; padding: 15px 20px; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.cmp thead th { background: color-mix(in srgb, var(--accent) 10%, transparent); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-2); }
.cmp tbody tr:last-child td { border-bottom: 0; }
.cmp tbody tr:hover { background: color-mix(in srgb, var(--text-1) 3%, transparent); }
.cmp td:first-child { color: var(--text-2); }
.note { color: var(--text-2); font-size: 0.82rem; margin: 14px 0 0; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 18px; }
.cards { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; transition: transform var(--motion), border-color var(--motion), box-shadow var(--motion);
}
.card:hover { transform: translateY(-3px); border-color: var(--border-hl); box-shadow: var(--shadow-1); }
.card h3 { margin: 14px 0 8px; font-size: 1.08rem; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-2); font-size: 0.94rem; }
.cicon { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.cicon svg { width: 22px; height: 22px; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.card code { background: var(--code-bg); color: var(--text-1); padding: 1px 6px; border-radius: 5px; font-size: 0.82em; }

.pill { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.pill h3 { margin: 0 0 8px; font-size: 1.02rem; }
.pill p { margin: 0; color: var(--text-2); font-size: 0.92rem; }
.pill code { background: var(--code-bg); color: var(--text-1); padding: 1px 6px; border-radius: 5px; font-size: 0.82em; }

/* ---------- Showcase ---------- */
.showcase { display: grid; grid-template-columns: 1fr 1.25fr; gap: 44px; align-items: center; padding: 28px 0; }
.showcase.reverse { direction: rtl; }
.showcase.reverse > * { direction: ltr; }
.sc-text h3 { font-size: 1.5rem; letter-spacing: -0.02em; margin: 0 0 12px; }
.sc-text p { color: var(--text-2); margin: 0 0 16px; }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.ticks li { position: relative; padding-left: 28px; color: var(--text-1); font-size: 0.94rem; }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #38d39f; font-weight: 700; }
.ticks code { background: var(--code-bg); color: var(--text-1); padding: 1px 6px; border-radius: 5px; font-size: 0.82em; }
.sc-shot img { border: 1px solid var(--border-hl); border-radius: var(--radius-lg); box-shadow: var(--shadow-1); }

/* ---------- Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.gallery figure { margin: 0; }
.gallery img { border: 1px solid var(--border); border-radius: var(--radius-lg); transition: transform var(--motion), border-color var(--motion); }
.gallery figure:hover img { transform: translateY(-3px); border-color: var(--border-hl); }
.gallery img.cover { aspect-ratio: 908 / 531; object-fit: cover; }
.gallery figcaption { color: var(--text-2); font-size: 0.85rem; margin-top: 10px; }

/* ---------- Steps / install ---------- */
.steps { list-style: none; margin: 0 0 36px; padding: 0; display: grid; gap: 26px; }
.steps li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; }
.steps li > div { min-width: 0; }
.step-n { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); font-weight: 700; font-size: 1.1rem; }
.steps h3 { margin: 4px 0 10px; font-size: 1.1rem; }
.steps p { margin: 0 0 10px; color: var(--text-2); }
.steps a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.code { display: flex; align-items: center; gap: 12px; background: var(--code-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; margin: 8px 0 12px; }
.code code { flex: 1; min-width: 0; color: #e7e9f3; font-size: 0.88rem; overflow-x: auto; white-space: nowrap; }
.copy { flex: none; border: 1px solid rgba(255, 255, 255, 0.16); background: rgba(255, 255, 255, 0.06); color: #e7e9f3; padding: 7px 14px; border-radius: 6px; font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: background var(--motion); }
.copy:hover { background: rgba(255, 255, 255, 0.14); }
.muted { color: var(--text-2); }
.install-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 4px 20px; transition: border-color var(--motion); }
.faq details[open] { border-color: var(--border-hl); }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; transition: transform var(--motion); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0 0 16px; color: var(--text-2); }

/* ---------- Final ---------- */
.final { padding: 90px 0; background-image: var(--hero-glow); }
.final h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.03em; margin: 0 0 12px; }
.center-cta { justify-content: center; }

/* ---------- Footer ---------- */
.footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 46px 0 30px; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-brand { display: flex; gap: 12px; align-items: center; }
.foot-brand img { border-radius: 8px; }
.foot-brand strong { display: block; }
.foot-brand p { margin: 2px 0 0; color: var(--text-2); font-size: 0.88rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; }
.foot-links a { color: var(--text-2); font-size: 0.9rem; transition: color var(--motion); }
.foot-links a:hover { color: var(--text-1); }
.foot-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--border); }
.foot-bottom p { margin: 0; font-size: 0.84rem; color: var(--text-2); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 500ms ease, transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-shot { order: -1; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .trust { grid-template-columns: repeat(2, 1fr); }
  .showcase, .showcase.reverse { grid-template-columns: 1fr; direction: ltr; }
  .gallery { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav { position: fixed; inset: 62px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-panel); border-bottom: 1px solid var(--border); padding: 8px; transform: translateY(-120%); transition: transform var(--motion); box-shadow: var(--shadow-1); }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 14px; }
  .menu-btn { display: inline-grid; }
  .theme-toggle { margin-left: auto; }
  .nav { margin-left: 0; }
  .cards, .cols-4 { grid-template-columns: 1fr; }
  .trust { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .sec, .band { padding: 60px 0; }
  .brand-name { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}