/* =============================================================
   Login (index.html) — visual sobrio, blanco roto + acento
   ============================================================= */

:root {
  --bg:        #f6f5f1;
  --surface:   #ffffff;
  --surface-2: #fafaf7;
  --ink:       #1c1d22;
  --muted:     #6b7280;
  --line:      #e7e6e0;
  --accent:    #047857;
  --accent-strong: #065f46;
  --accent-soft:   rgba(4, 120, 87, 0.12);
  --accent-fg: #ffffff;
  --shadow-1:  0 1px 2px rgba(20,20,20,.04), 0 10px 30px rgba(20,20,20,.05);
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(4,120,87,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(2,132,199,.07), transparent 60%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 36px 32px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #047857, #0d9488);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 14px rgba(4,120,87,.30);
}
.brand-text { line-height: 1.15; }
.brand-text strong { display: block; font-size: 15px; color: var(--ink); }
.brand-text span   { display: block; font-size: 12px; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }

.login-title {
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 4px;
}
.login-sub {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 24px;
}

.form-actions { margin-top: 22px; }
.form-actions .btn { width: 100%; padding: 12px; font-size: 14px; }

.alert {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}
.alert--ok {
  background: #ecfdf5; color: #065f46; border-color: #a7f3d0;
}

.foot {
  margin-top: 22px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}