/* Página de apresentação (index.php). Linha visual: caderno-razão — papel, tinta, linhas de pauta. */

:root {
    color-scheme: light;
    --paper: #f5f0e6;
    --paper-deep: #ece5d6;
    --card: #fbf8f1;
    --ink: #1d1c19;
    --ink-soft: #55524a;
    --ink-faint: #8a8578;
    --rule: #d8d0bd;
    --green: #2c6b4a;
    --green-deep: #1f4f36;
    --rust: #a8452c;
    --display: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 28px;
}

h1, h2, h3 {
    font-family: var(--display);
    font-weight: 500;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.eyebrow {
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 18px;
}

/* ---------- botões ---------- */

.btn {
    display: inline-block;
    font-family: var(--sans);
    font-weight: 600;
    font-size: 0.98rem;
    text-decoration: none;
    padding: 14px 26px;
    border-radius: 4px;
    border: 1.5px solid var(--ink);
    transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }
.btn:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }

/* ---------- topo ---------- */

.top {
    border-bottom: 1px solid var(--rule);
}
.top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 0;
}
.top-logo img { display: block; height: 44px; width: auto; }
.top-nav { display: flex; align-items: center; gap: 28px; font-size: 0.95rem; }
.top-nav a { text-decoration: none; color: var(--ink-soft); }
.top-nav a:hover { color: var(--ink); }
.top-nav { gap: 22px; }
.top-nav .btn { padding: 11px 22px; font-size: 0.95rem; white-space: nowrap; }
.top-nav .btn-line { color: var(--ink); }
.top-nav .btn-line:hover { color: var(--paper); }
.top-nav .btn-solid { color: var(--paper); }
.top-nav .btn-solid:hover { color: var(--paper); }
.top-nav-btns { display: flex; gap: 10px; }

/* ---------- hero ---------- */

.hero { padding: 84px 0 40px; }
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    gap: 40px;
    align-items: center;
}
.hero h1 {
    font-size: clamp(2.5rem, 5.2vw, 4.2rem);
    margin-bottom: 26px;
}
.hero h1 em {
    font-style: normal;
    color: var(--green);
}
.hero-lead {
    font-size: 1.2rem;
    color: var(--ink-soft);
    max-width: 30em;
    margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-note {
    margin-top: 22px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-faint);
}
.hero-art img {
    display: block;
    width: 112%;
    max-width: none;
    margin-right: -12%;
    height: auto;
}

/* ---------- seções ---------- */

.block { padding: 104px 0; }
.block + .block { border-top: 1px solid var(--rule); }
.block h2 {
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    max-width: 18em;
    margin-bottom: 20px;
}
.block-intro {
    color: var(--ink-soft);
    max-width: 38em;
    font-size: 1.1rem;
}
.split {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr);
    gap: 72px;
    align-items: start;
}
.split-head { position: sticky; top: 32px; }

/* ---------- recursos: lista pautada ---------- */

.ledger { list-style: none; counter-reset: row; border-top: 1.5px solid var(--ink); }
.ledger li {
    counter-increment: row;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 6px 14px;
    padding: 22px 0;
    border-bottom: 1px solid var(--rule);
}
.ledger li::before {
    content: counter(row, decimal-leading-zero);
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-faint);
    padding-top: 5px;
    grid-row: span 2;
}
.ledger h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.02em; }
.ledger p { color: var(--ink-soft); font-size: 1rem; }

/* ---------- desktop / mobile ---------- */

.device {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 72px;
    align-items: center;
}
.device-art img {
    display: block;
    width: 100%;
    max-width: 440px;
    height: auto;
    margin: 0 auto;
}
.device-points { list-style: none; margin-top: 30px; }
.device-points li {
    padding: 14px 0 14px 22px;
    border-top: 1px solid var(--rule);
    position: relative;
    color: var(--ink-soft);
}
.device-points li:last-child { border-bottom: 1px solid var(--rule); }
.device-points li::before {
    content: "";
    position: absolute;
    left: 0; top: 26px;
    width: 8px; height: 2px;
    background: var(--green);
}
.device-points strong { color: var(--ink); font-weight: 600; }

/* ---------- gratuito ---------- */

.free { background: var(--ink); color: var(--paper); border-top: 0 !important; }
.free .eyebrow { color: #8fc9a6; }
.free h2 { max-width: 14em; }
.free-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 72px;
    align-items: start;
}
.free-price {
    font-family: var(--display);
    font-weight: 500;
    font-size: clamp(4.5rem, 10vw, 8rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
    margin: 6px 0 12px;
    color: #8fc9a6;
}
.free-sub { color: #b9b4a6; max-width: 26em; margin-bottom: 32px; }
.free .btn-solid { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.free .btn-solid:hover { background: #8fc9a6; border-color: #8fc9a6; }
.free .btn-line { color: var(--paper); border-color: #6b675c; }
.free .btn-line:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.included { list-style: none; columns: 2; column-gap: 32px; border-top: 1px solid #3a3832; }
.included li {
    break-inside: avoid;
    padding: 11px 0;
    border-bottom: 1px solid #3a3832;
    font-size: 0.98rem;
    color: #d9d4c6;
}
.support {
    margin-top: 34px;
    padding-top: 22px;
    font-size: 0.95rem;
    color: #b9b4a6;
}
.support a { color: var(--paper); text-underline-offset: 3px; }
.support a:hover { color: #8fc9a6; }

/* ---------- para quem ---------- */

.who-list { list-style: none; }
.who-list li {
    font-family: var(--display);
    font-weight: 500;
    font-size: clamp(1.3rem, 2.4vw, 1.75rem);
    line-height: 1.3;
    padding: 20px 0;
    border-bottom: 1px solid var(--rule);
}
.who-list li:first-child { border-top: 1.5px solid var(--ink); }

/* ---------- planilha → app ---------- */

.story { max-width: 720px; }
.story p { color: var(--ink-soft); margin-bottom: 20px; }
.story .pull {
    font-family: var(--display);
    font-weight: 500;
    font-size: 1.6rem;
    line-height: 1.3;
    color: var(--ink);
    border-left: 3px solid var(--green);
    padding-left: 22px;
    margin: 34px 0 0;
}

/* ---------- sobre / google ---------- */

.about { background: var(--paper-deep); }
.about-cols {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 56px;
    margin: 44px 0 0;
}
.about h3 { font-size: 1.3rem; margin-bottom: 12px; }
.about-cols p, .about-cols li { color: var(--ink-soft); font-size: 1rem; }
.about-cols ul { list-style: none; }
.about-cols li { padding: 8px 0; border-bottom: 1px solid var(--rule); }
.about-cols li:first-child { border-top: 1px solid var(--rule); }

/* ---------- rodapé ---------- */

.foot { border-top: 1px solid var(--rule); padding: 56px 0 48px; }
.foot-row {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}
.foot-motto {
    font-family: var(--display);
    font-weight: 500;
    font-size: 1.35rem;
    line-height: 1.3;
    max-width: 16em;
    margin-bottom: 18px;
}
.foot small { color: var(--ink-faint); font-size: 0.85rem; }
.foot small a { text-underline-offset: 3px; }
.foot-links { display: grid; grid-template-columns: repeat(2, auto); gap: 8px 40px; align-content: start; font-size: 0.92rem; }
.foot-links a { color: var(--ink-soft); text-decoration: none; }
.foot-links a:hover { color: var(--green); text-decoration: underline; }

/* ---------- responsivo ---------- */

@media (max-width: 920px) {
    .hero { padding: 52px 0 24px; }
    .hero-grid, .split, .device, .free-grid { grid-template-columns: 1fr; gap: 44px; }
    .hero-art img { width: 100%; margin-right: 0; }
    .split-head { position: static; }
    .block { padding: 72px 0; }
    .about-cols { grid-template-columns: 1fr; gap: 32px; }
    .top-nav a:not(.btn) { display: none; }
    .device-art { order: -1; }
}

@media (max-width: 520px) {
    .wrap { padding: 0 20px; }
    .top-row { flex-direction: column; gap: 14px; padding: 14px 0; }
    .top-nav .btn { padding: 10px 16px; font-size: 0.9rem; }
    .top-logo img { height: 36px; }
    .included { columns: 1; }
    .foot-links { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .btn { transition: none; }
}