:root {
    --azul:        #1565c0;
    --azul-osc:    #0d47a1;
    --celeste:     #4fc3f7;
    --celeste-cl:  #e3f2fd;
    --gris-txt:    #33475b;
    --gris-cl:     #f5f8fc;
    --ok:          #2e7d32;
    --error:       #c62828;
    --borde:       #cfd8e3;
    --sombra:      0 2px 10px rgba(21, 101, 192, .08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--gris-txt);
    background: linear-gradient(160deg, var(--celeste-cl) 0%, #ffffff 60%);
    min-height: 100vh;
}

header {
    background: linear-gradient(90deg, var(--azul-osc), var(--azul));
    color: #fff;
    padding: 14px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--sombra);
}
header h1 { font-size: 1.15rem; margin: 0; font-weight: 600; }
header .user { font-size: .9rem; opacity: .95; }
header a { color: #fff; text-decoration: underline; margin-left: 12px; }

.wrap { max-width: 720px; margin: 34px auto; padding: 0 18px; }

.card {
    background: #fff;
    border: 1px solid var(--borde);
    border-radius: 12px;
    box-shadow: var(--sombra);
    padding: 26px 28px;
}

.card h2 {
    margin: 0 0 4px;
    color: var(--azul-osc);
    font-size: 1.25rem;
}
.card .sub { margin: 0 0 22px; color: #7089a3; font-size: .9rem; }

.login-wrap {
    max-width: 380px;
    margin: 8vh auto;
    padding: 0 18px;
}

label {
    display: block;
    font-size: .86rem;
    font-weight: 600;
    margin: 14px 0 5px;
    color: var(--azul-osc);
}

input[type=text], input[type=password], input[type=number],
input[type=date], select, textarea {
    width: 100%;
    padding: 9px 11px;
    font-size: .95rem;
    border: 1px solid var(--borde);
    border-radius: 8px;
    background: var(--gris-cl);
    color: var(--gris-txt);
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--celeste);
    box-shadow: 0 0 0 3px rgba(79, 195, 247, .25);
    background: #fff;
}
textarea { resize: vertical; min-height: 70px; }

.field.err input, .field.err select, .field.err textarea {
    border-color: var(--error);
    background: #fff5f5;
}
.msg-err { color: var(--error); font-size: .8rem; margin-top: 4px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 20px; }
.grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

button {
    margin-top: 22px;
    background: var(--azul);
    color: #fff;
    border: none;
    padding: 11px 22px;
    font-size: .98rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background .15s, transform .05s;
}
button:hover { background: var(--azul-osc); }
button:active { transform: translateY(1px); }

.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: .92rem;
}
.alert.ok    { background: #e8f5e9; color: var(--ok);    border: 1px solid #a5d6a7; }
.alert.error { background: #ffebee; color: var(--error); border: 1px solid #ef9a9a; }
.alert.warn  { background: #fff8e1; color: #b26a00;      border: 1px solid #ffe082; }

.btn-link {
    display: inline-block;
    margin-top: 8px;
    background: var(--celeste);
    color: var(--azul-osc);
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}
.btn-link:hover { background: #29b6f6; color: #fff; }

.foot { text-align: center; margin-top: 18px; }
.foot a { color: var(--azul); }