/* Aulecko — public site. Same identity as the app: notebook paper, pen-ink blue, highlighter yellow, a book's serif.
   No external font or script (fast, private, CSP-strict). Mobile first; every tap target ≥ 44 px. */
:root {
  --papel: #f7f4ec; --folha: #fffdf9; --tinta: #23262d; --suave: #5f636c; --linha: #e7e1d4; --linha-forte: #d3cab8;
  --azul: #2544a8; --azul-forte: #1b3380; --azul-claro: #e9edf8; --marca: #f5c542; --marca-claro: #fdf3cf; --verde: #2f855a;
  --titulo: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --texto: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --sombra: 0 1px 2px rgb(40 30 20 / .06), 0 12px 40px rgb(40 30 20 / .10);
  --largura: 1180px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--papel); color: var(--tinta); font: 17px/1.6 var(--texto); }
h1, h2, h3 { font-family: var(--titulo); line-height: 1.12; margin: 0; letter-spacing: -.005em; }
h1 { font-size: clamp(2.3rem, 1.3rem + 4.2vw, 4.3rem); }
h2 { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { margin: 0; }
a { color: var(--azul-forte); }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 3px solid var(--azul); outline-offset: 3px; }
mark { background: linear-gradient(transparent 55%, var(--marca) 55%, var(--marca) 92%, transparent 92%); color: inherit; padding: 0 .08em; }
.pular { position: absolute; left: 8px; top: -60px; background: var(--tinta); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 50; }
.pular:focus { top: 8px; }
.nota { font-size: .9rem; color: var(--suave); }
.selo { display: inline-block; font-weight: 700; font-size: .85rem; letter-spacing: .04em; text-transform: uppercase; color: var(--azul); background: var(--azul-claro); border-radius: 999px; padding: 4px 12px; margin-bottom: 18px; }

/* buttons */
.botao, .botao-secundario, .botao-link { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 22px; border-radius: 14px; font: 700 1rem var(--texto); text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background .15s, transform .05s, border-color .15s; }
.botao { background: var(--azul); color: #fff; box-shadow: 0 6px 18px rgb(37 68 168 / .25); }
.botao:hover { background: var(--azul-forte); }
.botao:active { transform: translateY(1px); }
.botao-secundario { background: var(--folha); color: var(--azul-forte); border-color: var(--linha-forte); }
.botao-secundario:hover { border-color: var(--azul); }
.botao-link { background: transparent; color: var(--azul-forte); padding-inline: 12px; }
.botao-link:hover { background: var(--azul-claro); }
.botao-grande { min-height: 56px; padding: 14px 28px; font-size: 1.05rem; }

/* header */
.topo { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 12px 24px; padding: 10px clamp(16px, 4vw, 40px); background: rgb(247 244 236 / .9); backdrop-filter: saturate(1.2) blur(8px); border-bottom: 1px solid var(--linha); }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 700 1.35rem var(--titulo); color: var(--tinta); text-decoration: none; min-height: 44px; }
.logo img { width: 32px; height: 32px; }
.topo-nav { display: flex; gap: 4px; }
.topo-nav a { padding: 10px 12px; border-radius: 10px; color: var(--suave); font-weight: 600; text-decoration: none; }
.topo-nav a:hover { color: var(--tinta); background: var(--folha); }
.topo-acoes { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.idioma { font-weight: 600; color: var(--suave); text-decoration: none; padding: 10px; border-radius: 10px; min-height: 44px; display: inline-flex; align-items: center; }
.idioma:hover { background: var(--folha); color: var(--tinta); }
@media (max-width: 860px) { .topo-nav { display: none; } }
@media (max-width: 520px) { .topo .botao-link { display: none; } .topo .botao { padding: 10px 14px; font-size: .92rem; min-height: 44px; } .logo span { display: none; } }

/* sections */
main > section { max-width: var(--largura); margin: 0 auto; padding: clamp(44px, 6vw, 84px) clamp(16px, 4vw, 40px); }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(28px, 5vw, 64px); align-items: center; padding-top: clamp(40px, 6vw, 80px) !important; }
.hero-sub { font-size: clamp(1.08rem, 1rem + .4vw, 1.3rem); color: var(--suave); margin: 22px 0 30px; max-width: 34em; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.hero-visual { position: relative; margin: 0; }
.janela { background: var(--folha); border: 1px solid var(--linha); border-radius: 16px; box-shadow: var(--sombra); overflow: hidden; margin: 0; }
.janela-pontos { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--linha); background: #fbf8f1; }
.janela-pontos i { width: 10px; height: 10px; border-radius: 50%; background: var(--linha-forte); }
.cartao-eco-flutuante { position: absolute; left: -18px; bottom: -22px; display: flex; align-items: center; gap: 10px; background: var(--folha); border: 1px solid var(--linha); border-radius: 14px; padding: 12px 16px; box-shadow: var(--sombra); font-weight: 700; color: var(--azul-forte); }
.onda-mini { width: 64px; height: 22px; background: repeating-linear-gradient(90deg, var(--azul) 0 3px, transparent 3px 6px); -webkit-mask: linear-gradient(90deg, #000 0 100%); mask-image: radial-gradient(ellipse at center, #000 55%, transparent 70%); border-radius: 4px; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; } .cartao-eco-flutuante { left: 12px; bottom: -18px; } }

.dor { text-align: center; }
.dor > p { max-width: 42em; margin: 18px auto 0; color: var(--suave); font-size: 1.1rem; }
.apps { list-style: none; padding: 0; margin: 30px auto; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.apps li { background: var(--folha); border: 1px solid var(--linha); border-radius: 999px; padding: 8px 16px; font-weight: 600; color: var(--suave); text-decoration: line-through; text-decoration-color: rgb(201 56 47 / .7); text-decoration-thickness: 2px; }
.dor-fecho { font-family: var(--titulo); font-size: clamp(1.3rem, 1rem + 1.2vw, 1.8rem); max-width: 30em; margin: 0 auto; }

.eco { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.eco-texto p:not(.selo) { color: var(--suave); font-size: 1.1rem; margin-top: 16px; }
.eco-demo { background: var(--folha); border: 1px solid var(--linha); border-radius: 20px; padding: clamp(18px, 3vw, 30px); box-shadow: var(--sombra); display: grid; gap: 16px; }
.eco-frase { font-family: var(--titulo); font-size: 1.3rem; }
.eco-lados { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 10px; align-items: center; }
.eco-lado { display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-areas: "play info" "barras barras"; gap: 8px 12px; align-items: center; text-align: left; background: var(--papel); border: 1px solid var(--linha); border-radius: 14px; padding: 12px; cursor: pointer; font: inherit; color: inherit; min-height: 44px; }
.eco-lado strong { display: block; } .eco-lado small { color: var(--suave); }
.eco-lado .play { grid-area: play; width: 44px; height: 44px; border-radius: 50%; background: var(--azul); position: relative; }
.eco-lado .play::after { content: ""; position: absolute; left: 17px; top: 13px; border-left: 13px solid #fff; border-top: 9px solid transparent; border-bottom: 9px solid transparent; }
.eco-lado[aria-pressed="true"] .play::after { left: 15px; top: 14px; width: 14px; height: 16px; border: 0; border-left: 4px solid #fff; border-right: 4px solid #fff; }
.eco-agora { background: var(--marca-claro); border-color: #ecd27a; }
.barras { grid-area: barras; height: 26px; background: repeating-linear-gradient(90deg, #cbc3b4 0 3px, transparent 3px 6px); border-radius: 3px; }
.eco-lado[aria-pressed="true"] .barras { background: repeating-linear-gradient(90deg, var(--azul) 0 3px, transparent 3px 6px); }
.eco-seta { font-size: 1.4rem; color: var(--suave); }
@media (max-width: 900px) { .eco { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .eco-lados { grid-template-columns: 1fr; } .eco-seta { transform: rotate(90deg); justify-self: center; } }

.como h2, .recursos h2, .perguntas h2, .para h2 { max-width: 22em; }
.passos { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: p; }
.passo { background: var(--folha); border: 1px solid var(--linha); border-radius: 18px; padding: 24px; display: grid; gap: 10px; align-content: start; }
.passo-n { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--marca); font: 800 1.1rem var(--texto); }
.passo p { color: var(--suave); }
@media (max-width: 860px) { .passos { grid-template-columns: 1fr; } }

.grade-recursos { list-style: none; padding: 0; margin: 36px 0 40px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.recurso { display: grid; gap: 8px; align-content: start; padding: 4px; }
.recurso p { color: var(--suave); }
.recurso-ic { width: 44px; height: 44px; border-radius: 12px; background: var(--azul-claro); position: relative; }
.recurso-ic::after { content: ""; position: absolute; inset: 12px; border-radius: 4px; background: var(--azul); }
.ic-2::after { border-radius: 50% 50% 50% 0; transform: rotate(-45deg); background: #c9382f; }
.ic-3::after { background: repeating-linear-gradient(90deg, var(--azul) 0 3px, transparent 3px 5px); }
.ic-4::after { border-radius: 50%; background: var(--marca); box-shadow: 0 0 0 4px #fff inset; }
.ic-5::after { background: conic-gradient(#2544a8 0 25%, #1f7a4d 0 50%, #8a2846 0 75%, #b4531a 0); border-radius: 50%; }
.ic-6::after { inset: 13px 11px; border-radius: 6px 6px 4px 4px; background: var(--verde); }
.janela-larga img { width: 100%; }
@media (max-width: 860px) { .grade-recursos { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .grade-recursos { grid-template-columns: 1fr; } }

.marca { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 32px; align-items: center; background: var(--folha); border-radius: 28px; border: 1px solid var(--linha); margin-top: 20px !important; margin-bottom: 20px !important; }
.marca p { color: var(--suave); font-size: 1.1rem; margin-top: 14px; }
.marca-cores { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.marca-cor { aspect-ratio: 1; border-radius: 18px; box-shadow: inset 0 0 0 1px rgb(0 0 0 / .06); }
@media (max-width: 760px) { .marca { grid-template-columns: 1fr; } }

.chips-grandes { list-style: none; padding: 0; margin: 28px 0; display: flex; flex-wrap: wrap; gap: 10px; }
.chips-grandes li { background: var(--folha); border: 1px solid var(--linha); border-radius: 999px; padding: 10px 18px; font-weight: 600; }
.prova { margin: 10px 0 0; padding: 22px 26px; border-left: 4px solid var(--marca); background: var(--folha); border-radius: 0 16px 16px 0; font-size: 1.1rem; }

.perguntas details { border-bottom: 1px solid var(--linha); padding: 6px 0; max-width: 820px; }
.perguntas details:first-of-type { margin-top: 26px; }
.perguntas summary { cursor: pointer; font-weight: 700; font-size: 1.08rem; padding: 14px 0; min-height: 44px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.perguntas summary::after { content: "+"; font-size: 1.4rem; color: var(--azul); }
.perguntas details[open] summary::after { content: "–"; }
.perguntas details p { color: var(--suave); padding: 0 0 16px; max-width: 46em; }

.cta-final { text-align: center; display: grid; justify-items: center; gap: 18px; }
.cta-final h2 { max-width: 18em; }
.rodape { max-width: var(--largura); margin: 0 auto; padding: 36px clamp(16px, 4vw, 40px) 48px; border-top: 1px solid var(--linha); display: grid; gap: 6px; color: var(--suave); font-size: .92rem; }

/* sign in / sign up */
.auth { max-width: 460px; margin: 0 auto; padding: clamp(28px, 6vw, 64px) 16px 40px; }
.auth-cartao { background: var(--folha); border: 1px solid var(--linha); border-radius: 22px; box-shadow: var(--sombra); padding: clamp(22px, 5vw, 36px); display: grid; gap: 14px; }
.auth-cartao h1 { font-size: clamp(1.8rem, 1.4rem + 1.4vw, 2.3rem); }
.auth-sub { color: var(--suave); }
.auth-form { display: grid; gap: 14px; margin-top: 6px; }
.campo { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }
.campo input { font: inherit; font-weight: 400; min-height: 50px; padding: 12px 14px; border: 1px solid var(--linha-forte); border-radius: 12px; background: #fff; color: var(--tinta); }
.campo input:focus { border-color: var(--azul); outline: 3px solid var(--azul-claro); outline-offset: 0; }
.campo small { color: var(--suave); font-weight: 400; }
.auth-msg { min-height: 1.2em; font-weight: 600; }
.auth-msg.erro { color: #b3261e; }
.auth-msg.ok { color: var(--verde); }
.auth-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; }
.auth-demo { text-align: center; font-size: .95rem; }
.auth-voltar { text-align: center; margin-top: 18px; }
[hidden] { display: none !important; }

/* text pages */
.texto { max-width: 760px; margin: 0 auto; padding: clamp(32px, 6vw, 72px) 16px; display: grid; gap: 14px; }
.texto h2 { font-size: 1.4rem; margin-top: 18px; }
.texto p { color: var(--suave); }
.para { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.foto-mesa { margin: 0; border-radius: 22px; overflow: hidden; box-shadow: var(--sombra); }
.foto-mesa img { width: 100%; }
@media (max-width: 900px) { .para { grid-template-columns: 1fr; } }