:root {
    --cla-blue: #1d3557;
    --cla-header-blue: #4a76a8;
    --cla-accent: #4C9AFF;
    --bg: #f4f6f9;
    --border: #dde3ea;
    --text: #1f2937;
    --alta: #e63946;
    --baja: #6c757d;
    --completada: #2a9d8f;
    --weekend-bg: #eaf3fc;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
}

/* Login / formularios de una sola tarjeta */
.login-body, .form-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-body { background: linear-gradient(135deg, var(--cla-blue), #457b9d); }
.form-page { padding: 2rem 1rem; }

.login-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,.2);
    width: 100%;
    max-width: 420px;
}

.login-card h1 {
    margin: 0 0 .25rem;
    font-size: 1.4rem;
    color: var(--cla-blue);
}

.login-logo {
    display: block;
    height: 72px;
    width: 72px;
    object-fit: contain;
    background: #fff;
    border-radius: 50%;
    padding: 8px;
    margin: 0 auto .75rem;
    box-shadow: 0 1px 6px rgba(0,0,0,.2);
}

.subtitle {
    margin: 0 0 1.5rem;
    color: #6b7280;
    font-size: .9rem;
}

form label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin: .75rem 0 .25rem;
}

form input, form select, form textarea {
    width: 100%;
    padding: .55rem .7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .95rem;
    font-family: inherit;
}

.error-message {
    color: var(--alta);
    font-size: .85rem;
    margin: .5rem 0 0;
}

.delete-form { margin-top: 1rem; text-align: right; }

/* Header */
.app-header {
    background: var(--cla-blue);
    color: #fff;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand { display: flex; align-items: center; gap: .9rem; }

.header-logo {
    height: 46px;
    width: 46px;
    object-fit: contain;
    background: #fff;
    border-radius: 50%;
    padding: 5px;
    box-shadow: 0 1px 4px rgba(0,0,0,.25);
}

.app-header h1 { margin: 0; font-size: 1.2rem; }
.app-header .subtitle { color: #cfe0f5; margin: .15rem 0 0; }

.logout-link {
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(255,255,255,.4);
    padding: .4rem .8rem;
    border-radius: 6px;
    font-size: .85rem;
}
.logout-link:hover { background: rgba(255,255,255,.1); }

/* Calendar */
.calendar-wrap {
    max-width: 1000px;
    margin: 1.5rem auto;
    padding: 0 1rem;
}

.calendar-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.nav-btn {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 2.2rem;
    height: 2.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    text-decoration: none;
    color: var(--text);
}

.calendar-controls h2 {
    margin: 0;
    min-width: 200px;
    text-align: center;
    color: var(--cla-blue);
}

.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.legend { display: flex; gap: .75rem; flex-wrap: wrap; }
.legend-item { display: inline-flex; align-items: center; gap: .35rem; font-size: .8rem; }
.legend-dot { width: .65rem; height: .65rem; border-radius: 50%; display: inline-block; }

.btn-pdf {
    margin-left: auto;
    background: var(--cla-blue);
    color: #fff;
    border: none;
    padding: .55rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: .85rem;
    cursor: pointer;
}
.btn-pdf:hover { background: #16283f; }

#printable-calendar {
    position: relative;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    padding-bottom: 3.5rem;
}

.cla-print-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 0 0 1rem;
}

.cla-print-shield { height: 70px; width: auto; flex-shrink: 0; }
.cla-print-mark { height: 90px; width: auto; flex-shrink: 0; }

.cla-print-titles { flex: 1; text-align: center; }
.cla-print-title {
    margin: 0;
    color: var(--cla-blue);
    font-size: 1.6rem;
    letter-spacing: .02em;
}
.cla-print-dept {
    margin: .15rem 0 0;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text);
}
.cla-print-month {
    margin: .2rem 0 0;
    font-weight: 600;
    font-size: .95rem;
    letter-spacing: .04em;
    color: #4b5563;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.dow {
    text-align: center;
    font-weight: 700;
    color: #fff;
    background: var(--cla-header-blue);
    padding: .5rem 0;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .02em;
}

.day-blank { background: #fff; }

.day-cell {
    background: #fff;
    min-height: 110px;
    padding: .4rem;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: .3rem;
}

.day-cell.weekend { background: var(--weekend-bg); }
.day-cell.weekend .day-number { color: var(--alta); }

.day-number {
    font-weight: 700;
    font-size: .85rem;
    color: #374151;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: .2rem;
}

.activity-chip {
    display: block;
    font-size: .72rem;
    line-height: 1.3;
    padding: .05rem 0 .05rem .5rem;
    border-left: 3px solid var(--baja);
    cursor: pointer;
    white-space: normal;
    overflow-wrap: break-word;
    color: var(--text);
    text-decoration: none;
}
.activity-chip:hover { background: rgba(0,0,0,.04); }

.add-activity-btn {
    align-self: flex-end;
    margin-top: auto;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: 4px;
    width: 1.4rem;
    height: 1.4rem;
    line-height: 1.3rem;
    text-align: center;
    cursor: pointer;
    color: var(--cla-accent);
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
}
.add-activity-btn:hover { background: #eef2f7; }

.calendar-mascots-wrap {
    position: absolute;
    right: -6px;
    bottom: -34px;
    pointer-events: none;
    z-index: 3;
}

.calendar-mascots-wrap .calendar-mascots { height: 260px; width: auto; }

/* Formularios de actividad / cuenta */
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: .5rem;
    margin-top: 1.25rem;
}

.btn-secondary {
    background: #fff;
    border: 1px solid var(--border);
    padding: .5rem .9rem;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    font-size: .85rem;
    display: inline-block;
}
.btn-danger {
    background: #fff;
    border: 1px solid var(--alta);
    color: var(--alta);
    padding: .5rem .9rem;
    border-radius: 6px;
    cursor: pointer;
}
.btn-full {
    display: block;
    width: 100%;
    margin-top: 1.25rem;
    padding: .65rem;
    text-align: center;
    font-weight: 600;
}
.btn-primary {
    background: var(--cla-blue);
    color: #fff;
    border: none;
    padding: .5rem 1.1rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
}

/* Cuentas de departamento */
.accounts-panel {
    margin-top: 2.5rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
}
.accounts-panel h2 { margin-top: 0; font-size: 1.05rem; color: var(--cla-blue); }

table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
td .btn-secondary { font-size: .78rem; padding: .3rem .6rem; margin-right: .4rem; }

@media (max-width: 700px) {
    .calendar-grid { grid-template-columns: repeat(7, minmax(36px, 1fr)); }
    .day-cell { min-height: 70px; font-size: .7rem; }
    .activity-chip { font-size: .62rem; }
    .cla-print-shield, .cla-print-mark { height: 48px; }
    .cla-print-title { font-size: 1.15rem; }
    .cla-print-dept { font-size: 1rem; }
    .calendar-mascots-wrap .calendar-mascots { height: 150px; }
}

/* Impresión / Guardar como PDF: solo el calendario, sin encabezado ni controles */
@media print {
    .app-header, .calendar-controls, .admin-toolbar, .accounts-panel, .logout-link {
        display: none !important;
    }
    body { background: #fff; }
    .calendar-wrap { margin: 0; padding: 0; max-width: none; }
    #printable-calendar { border: none; box-shadow: none; }
}