:root { --ink: #1c2230; --ink-soft: #4a5263; --paper: #f6f3ec; --rule: #d9d2c3; --accent: #2f6fed; --brass: #e0b25b; --danger: #b3261e; }
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 16px;
  background:
    linear-gradient(rgb(28 34 48 / 0.05) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, rgb(28 34 48 / 0.05) 1px, transparent 1px) 0 0 / 28px 28px,
    var(--paper);
  color: var(--ink);
  font: 15px/1.45 system-ui, 'Segoe UI', sans-serif;
}
.login { width: min(380px, 100%); }
.marca { margin-bottom: 22px; }
.marca h1 { margin: 10px 0 4px; font-size: 28px; font-weight: 400; letter-spacing: -0.02em; }
.marca h1 b { font-weight: 650; }
.marca p { margin: 0; color: var(--ink-soft); }
form { display: grid; gap: 14px; padding: 22px; background: #fff; border: 1px solid var(--rule); border-radius: 10px; box-shadow: 0 10px 30px rgb(28 34 48 / 0.08); }
label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--ink-soft); }
input[type='email'], input[type='password'] { height: 40px; padding: 0 12px; border: 1px solid var(--rule); border-radius: 7px; font: inherit; color: var(--ink); }
input:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.recordar { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.error { margin: 0; color: var(--danger); font-size: 14px; }
button { height: 42px; border: 0; border-radius: 7px; background: var(--ink); color: var(--paper); font: 600 15px system-ui, sans-serif; cursor: pointer; box-shadow: inset 0 -2px 0 var(--brass); }
button:hover { background: #2b3346; }