*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
       background: #f5f6fa; color: #1a1a2e; }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box { background: #fff; padding: 2.5rem 2rem; border-radius: 12px;
             box-shadow: 0 4px 24px rgba(0,0,0,.08); width: 320px; text-align: center; }
.login-box .logo { font-size: 1.8rem; font-weight: 700; color: #2563eb; }
.login-box .subtitle { color: #6b7280; margin: .25rem 0 1.5rem; font-size: .9rem; }
.login-box input { width: 100%; padding: .65rem .9rem; border: 1px solid #d1d5db;
                   border-radius: 8px; font-size: 1rem; margin-bottom: .75rem; }
.login-box button { width: 100%; padding: .7rem; background: #2563eb; color: #fff;
                    border: none; border-radius: 8px; font-size: 1rem; cursor: pointer; }
.login-box button:hover { background: #1d4ed8; }
.error { color: #dc2626; font-size: .85rem; margin-top: .5rem; }

/* Header */
header { background: #fff; border-bottom: 1px solid #e5e7eb; padding: 0 2rem; }
.header-inner { max-width: 1100px; margin: 0 auto; height: 56px;
                display: flex; align-items: center; gap: 1rem; }
.logo { font-weight: 700; font-size: 1.2rem; color: #2563eb; }
.header-title { color: #6b7280; font-size: .95rem; flex: 1; }
.logout { font-size: .85rem; color: #6b7280; text-decoration: none; }
.logout:hover { color: #2563eb; }

/* Main */
main { max-width: 1100px; margin: 2rem auto; padding: 0 1.5rem; }
.section-title { font-size: 1rem; font-weight: 600; color: #6b7280;
                 text-transform: uppercase; letter-spacing: .05em; margin-bottom: 1rem; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }

.card { background: #fff; border-radius: 12px; padding: 1.25rem 1.5rem;
        box-shadow: 0 1px 6px rgba(0,0,0,.06); }
.card-label { font-size: .8rem; font-weight: 600; color: #6b7280;
              text-transform: uppercase; letter-spacing: .04em; margin-bottom: .4rem; }
.card-value { font-size: 2rem; font-weight: 700; color: #111827; line-height: 1.1; }
.card-sub { font-size: .78rem; color: #9ca3af; margin-top: .3rem; }

.card-editable { border: 2px dashed #bfdbfe; }
.cac-form { display: flex; gap: .4rem; margin-top: .75rem; }
.cac-form input { flex: 1; padding: .4rem .6rem; border: 1px solid #d1d5db;
                  border-radius: 6px; font-size: .85rem; }
.cac-form button { padding: .4rem .75rem; background: #2563eb; color: #fff;
                   border: none; border-radius: 6px; font-size: .85rem; cursor: pointer; }

.errors { margin-top: 1.5rem; background: #fef2f2; border: 1px solid #fecaca;
          border-radius: 8px; padding: 1rem; font-size: .85rem; color: #b91c1c; }

footer { max-width: 1100px; margin: 2rem auto .5rem; padding: 0 1.5rem;
         display: flex; justify-content: space-between; font-size: .78rem; color: #9ca3af; }