/* Base styles for CeL lab tools: calm, clinical palette with automatic dark mode for the content area.
 * The CeL header and sidebar (assets/cel/cel-chrome.css) keep the brand colours. */
:root {
  --bg: #F5F8FA; --surface: #FFFFFF; --ink: #14304A; --ink2: #4E6478; --ink3: #8496A6;
  --grid: #E1E8EE; --point: #2F6E8E; --alert: #B8205F; --ok: #1F7A4D; --accent: #2F6E8E;
  --code-bg: #0F1A24; --code-ink: #D6E2EC;
  --radius: 12px; --shadow: 0 1px 2px rgba(20,48,74,.06), 0 8px 24px rgba(20,48,74,.06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#0F1A24; --surface:#152331; --ink:#E4ECF2; --ink2:#A7B8C6; --ink3:#6E8394;
    --grid:#22364A; --point:#7DB7D6; --alert:#FF6FA5; --ok:#6FD39A; --accent:#7DB7D6; --code-bg:#0A131B;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:#0F1A24; --surface:#152331; --ink:#E4ECF2; --ink2:#A7B8C6; --ink3:#6E8394;
  --grid:#22364A; --point:#7DB7D6; --alert:#FF6FA5; --ok:#6FD39A; --accent:#7DB7D6; --code-bg:#0A131B; color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font: 400 16px/1.5 "Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; font-variant-numeric: tabular-nums; }
a { color: var(--point); }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.01em; }
button, .btn { font: inherit; font-size: 14.5px; color: var(--ink); background: var(--surface); border: 1px solid var(--grid); border-radius: 8px;
  padding: 7px 13px; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; text-decoration: none; white-space: nowrap; }
button:hover, .btn:hover { border-color: var(--ink3); }
.btn.primary { background: var(--ink); color: var(--surface); border-color: var(--ink); }
:focus-visible { outline: 2px solid var(--point); outline-offset: 2px; }
svg.i { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 28px; } }
.muted { color: var(--ink2); }

.hero { padding: 44px 0 26px; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink3); margin-bottom: 10px; }
.hero h1 { font-size: clamp(30px, 4.6vw, 46px); max-width: 860px; }
.hero p.lead { font-size: 18.5px; color: var(--ink2); max-width: 760px; margin: 14px 0 0; }
h2.sec { font-size: 22px; margin: 34px 0 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card, .panel-card { background: var(--surface); border: 1px solid var(--grid); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.card { display: flex; flex-direction: column; gap: 10px; border-top: 4px solid var(--acc, var(--accent)); }
.tag { font-size: 12.5px; border: 1px solid var(--grid); border-radius: 999px; padding: 1px 9px; color: var(--ink2); }
.tabs { display: flex; gap: 2px; margin-top: 12px; overflow-x: auto; scrollbar-width: none; }
.tabs button { border: 0; border-bottom: 3px solid transparent; border-radius: 0; background: transparent; padding: 9px 14px; font-weight: 600; color: var(--ink2); }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--ink); }
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tbl th { text-align: left; font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink3); font-weight: 700; padding: 8px 14px; background: var(--bg); }
.tbl td { padding: 9px 14px; border-top: 1px solid var(--grid); vertical-align: top; }
.scroll { overflow-x: auto; }
pre.code { background: var(--code-bg); color: var(--code-ink); border-radius: var(--radius); padding: 16px 18px; overflow: auto; font: 12.5px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; }
.flag { font-weight: 700; color: var(--alert); }
.backlink { display: inline-flex; align-items: center; gap: 4px; margin-top: 14px; font-size: 14.5px; font-weight: 600; color: var(--ink2); text-decoration: none; }
.backlink:hover { color: var(--ink); }
footer.site { margin: 46px 0 0; padding: 22px 0 34px; border-top: 1px solid var(--grid); color: var(--ink2); font-size: 14px; }
footer.site p { margin: 0 0 6px; }

/* ---------- Kit "O meu projeto IA em 7 fases": CeL brand on top of the base palette ---------- */
:root { --navy: #2F4E5E; --orange: #F79135; --orange-ink: #B85F0E; --peach: #FFE5CE; --point: #2F4E5E; --accent: #F79135; --ink: #22343E; --ink2: #4a4a4a; --bg: #F6F7F8; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --navy: #9CC3D6; --point: #9CC3D6; --orange-ink: #F7A863; --peach: #3A2A1C; --ink: #E4ECF2; --ink2: #B9C6D0; --bg: #0F1A24; } }
:root[data-theme="dark"] { --navy: #9CC3D6; --point: #9CC3D6; --orange-ink: #F7A863; --peach: #3A2A1C; --ink: #E4ECF2; --ink2: #B9C6D0; --bg: #0F1A24; }
body { font-family: "Open Sans", Calibri, Arial, sans-serif; font-size: 16px; line-height: 1.6; }
h1, h2, h3, .eyebrow, .ph-num { font-family: "Roboto Condensed", "Segoe UI", Arial, sans-serif; }
h1, h2, h3 { color: var(--navy); }
html[lang^="pt"] [data-l="en"], html:not([lang^="pt"]) [data-l="pt"] { display: none !important; }
.eyebrow { color: var(--orange-ink); }
.hero h1 { font-weight: 700; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.pill { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 999px; padding: 12px 26px; font: 700 14px/1.2 "Open Sans", Arial, sans-serif;
  text-transform: uppercase; letter-spacing: .5px; text-decoration: none; cursor: pointer; white-space: normal; text-align: center; }
.pill.orange { background: #F79135; color: #fff; box-shadow: 0 6px 16px rgba(247,145,53,.3); }
.pill.orange:hover { background: #e07b1f; }
.pill.navy { background: #2F4E5E; color: #fff; box-shadow: 0 6px 16px rgba(47,78,94,.25); }
.pill.navy:hover { background: #22404f; }
.pill[disabled] { opacity: .6; cursor: progress; }
section.block { margin-top: 38px; }
h2.sec { font-size: 26px; margin: 0 0 6px; }
h2.sec::after { content: ""; display: block; width: 40px; height: 3px; background: var(--orange); margin-top: 8px; }
.sub { color: var(--ink2); margin: 10px 0 18px; max-width: 760px; }
.how { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.feat { background: var(--surface); border-radius: 16px; padding: 18px 20px; box-shadow: var(--shadow); border-left: 7px solid var(--orange); border-top-left-radius: 22px; border-bottom-left-radius: 22px; }
.feat h3 { font-size: 19px; margin-bottom: 6px; }
.feat p { margin: 0; color: var(--ink2); font-size: 15px; }
.note { background: var(--surface); border: 1px solid var(--grid); border-radius: 12px; padding: 12px 16px; margin-top: 14px; font-size: 15px; color: var(--ink2); }
.note strong { color: var(--ink); }
.prompt { background: var(--surface); border: 1px solid var(--grid); border-radius: 14px; box-shadow: var(--shadow); margin: 14px 0; overflow: hidden; }
.prompt-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px 10px 16px; border-bottom: 1px solid var(--grid); background: var(--bg); }
.prompt-head .lbl { font: 700 12.5px/1.3 "Roboto Condensed", Arial, sans-serif; letter-spacing: .07em; text-transform: uppercase; color: var(--navy); }
.prompt pre { margin: 0; padding: 14px 16px; white-space: pre-wrap; word-wrap: break-word; overflow-wrap: anywhere; font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: var(--ink); }
.prompt .hint { margin: 0; padding: 0 16px 12px; font-size: 14px; color: var(--ink2); }
button.copy { flex-shrink: 0; border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 700; border: 1.5px solid var(--orange); color: var(--orange-ink); background: transparent; }
button.copy:hover { background: var(--orange); color: #fff; border-color: var(--orange); }
button.copy.ok { background: #1F7A4D; border-color: #1F7A4D; color: #fff; }
.phase { background: var(--surface); border-radius: 18px; box-shadow: var(--shadow); padding: 20px; border-bottom: 6px solid var(--orange); }
@media (min-width: 720px) { .phase { padding: 26px 30px; } }
.ph-top { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.ph-num { flex-shrink: 0; width: 46px; height: 46px; border-radius: 50%; background: #2F4E5E; color: #fff; display: grid; place-items: center; font-size: 22px; font-weight: 700; }
.ph-tech { font: 700 13px/1.3 "Roboto Condensed", Arial, sans-serif; letter-spacing: .07em; text-transform: uppercase; color: var(--orange-ink); }
.phase h3 { font-size: 24px; }
.ideas { margin: 10px 0 4px; padding-left: 20px; }
.ideas li { margin: 4px 0; }
.check { background: var(--peach); border-radius: 12px; padding: 12px 16px; margin-top: 14px; }
.check h4 { margin: 0 0 6px; font: 700 15px/1.3 "Roboto Condensed", Arial, sans-serif; color: var(--ink); }
.check ul { margin: 0; padding-left: 0; list-style: none; }
.check li { padding-left: 26px; position: relative; margin: 5px 0; }
.check li::before { content: ""; position: absolute; left: 2px; top: 4px; width: 14px; height: 14px; border: 2px solid var(--orange-ink); border-radius: 4px; }
.phases { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.pcard { background: var(--surface); border-radius: 16px; box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 8px; border-bottom: 5px solid var(--grid); }
.pcard .ph-num { width: 36px; height: 36px; font-size: 17px; }
.pcard h3 { font-size: 19px; }
.pcard p { margin: 0; font-size: 15px; color: var(--ink2); }
.pcard .lock { margin-top: auto; align-self: flex-start; font-size: 12.5px; font-weight: 700; color: var(--orange-ink); border: 1.5px solid var(--orange); border-radius: 999px; padding: 2px 10px; }
.pcard.alert { border-bottom-color: var(--orange); }
form.kit { background: var(--surface); border-radius: 18px; box-shadow: var(--shadow); padding: 20px; display: grid; gap: 14px; max-width: 760px; }
@media (min-width: 720px) { form.kit { padding: 26px 30px; grid-template-columns: 1fr 1fr; } form.kit .full { grid-column: 1 / -1; } }
.fld label { display: block; font-weight: 600; font-size: 14.5px; margin-bottom: 5px; }
.fld .opt { font-weight: 400; color: var(--ink3); }
.fld input, .fld select { width: 100%; font: inherit; font-size: 16px; padding: 10px 12px; border: 1.5px solid var(--grid); border-radius: 10px; background: var(--bg); color: var(--ink); }
.fld input:focus, .fld select:focus { border-color: var(--navy); outline: none; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; }
.consent input { width: 20px; height: 20px; margin-top: 3px; flex-shrink: 0; accent-color: #F79135; }
.rgpd { font-size: 13.5px; color: var(--ink2); margin: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { border-radius: 12px; padding: 12px 16px; font-size: 15px; display: none; }
.status.show { display: block; }
.status.info { background: var(--peach); color: var(--ink); }
.status.ok { background: #E3F3EA; color: #14532D; }
.status.err { background: #FBE4EC; color: #7A1238; }
.status a { color: inherit; font-weight: 700; }
.courses { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.course { background: var(--surface); border-radius: 18px; box-shadow: var(--shadow); padding: 20px; border-bottom: 6px solid var(--orange); display: flex; flex-direction: column; gap: 8px; }
.course .tagl { font: 700 13px/1.2 "Roboto Condensed", Arial, sans-serif; color: var(--orange-ink); text-transform: uppercase; letter-spacing: .06em; }
.course h3 { font-size: 20px; }
.course p { margin: 0; color: var(--ink2); font-size: 15px; }
.course a.more { margin-top: auto; align-self: flex-start; color: var(--navy); font-weight: 700; text-decoration: none; border-bottom: 2px solid var(--orange); }
.small { font-size: 14px; color: var(--ink2); }
section[id] { scroll-margin-top: 80px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .pill.navy { box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.35); } }
:root[data-theme="dark"] .pill.navy { box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.35); }