:root { --bg: #0d111c; --card: #161c2b; --tx: #e8ecf5; --mut: #8f9ab2; --bd: #26304a; --navy: #2a4f8f; --red: #d23a4b; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(1200px 600px at 50% -10%, #1c2742 0%, var(--bg) 60%); color: var(--tx); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.porta { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.placa { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--bd); border-radius: 16px; padding: 32px 28px; box-shadow: 0 20px 60px rgba(0,0,0,.45); }
.logo { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-weight: 800; letter-spacing: -.02em; background: linear-gradient(135deg, var(--navy), var(--red)); margin-bottom: 16px; }
h1 { font-size: 20px; line-height: 1.25; margin: 0 0 4px; letter-spacing: -.01em; }
.sub { margin: 0 0 24px; color: var(--mut); font-size: 13px; }
label { display: block; font-size: 13px; color: var(--mut); margin-bottom: 6px; }
input { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--bd); background: #0f1422; color: var(--tx); font-size: 15px; }
input:focus { outline: 2px solid var(--navy); border-color: transparent; }
button { width: 100%; margin-top: 16px; padding: 12px; border: 0; border-radius: 10px; background: var(--red); color: #fff; font-weight: 600; font-size: 15px; cursor: pointer; }
button:hover { filter: brightness(1.08); }
.erro { background: rgba(210,58,75,.12); border: 1px solid rgba(210,58,75,.4); color: #ff9aa5; padding: 8px 12px; border-radius: 8px; font-size: 13px; }
.nota { margin: 20px 0 0; font-size: 12px; color: var(--mut); }