/* ===========================
   VARIABLES Y COLORES
   =========================== */
:root {
    --color-primary: #c62828;
    --color-primary-dark: #b71c1c;
    --color-primary-light: #ef5350;
    --color-secondary: #000000;
    --color-tertiary: #2d5016;
    --color-white: #ffffff;
    --color-gray-light: #f5f5f5;
    --color-gray-medium: #e0e0e0;
    --color-gray-dark: #424242;
    --color-success: #2e7d32;
    --color-warning: #f57c00;
    --color-danger: #c62828;
    --color-info: #1976d2;

    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 16px rgba(0,0,0,0.2);

    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* ===========================
   RESET Y ESTILOS BASE
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--color-secondary);
    background-color: var(--color-gray-light);
    height: 100%;
}

body {
    overflow-x: hidden;
}

/* ===========================
   PANTALLA DE LOGIN
   =========================== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.login-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.login-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-heavy);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo-login {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.logo-login svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.login-header h1 {
    font-size: 24px;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.login-header p {
    font-size: 14px;
    color: var(--color-gray-dark);
}

.login-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-gray-medium);
    border-radius: var(--border-radius);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.1);
}

.login-footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--color-gray-medium);
}

.demo-info {
    font-size: 12px;
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* ===========================
   APLICACIÓN PRINCIPAL
   =========================== */
.main-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: var(--color-gray-light);
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.main-app.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* HEADER */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 25px 30px;
    box-shadow: var(--shadow-medium);
    z-index: 100;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 25px;
    flex: 1;
}

.logo-icon {
    width: 90px;
    height: 90px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
    flex-shrink: 0;
}

.header-title h1 {
    font-size: 26px;
    margin-bottom: 5px;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.header-title p {
    font-size: 13px;
    opacity: 0.9;
    letter-spacing: 0.3px;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-user span {
    font-size: 14px;
    font-weight: 500;
}

/* NAVBAR */
.navbar {
    background-color: var(--color-secondary);
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0;
    gap: 0;
    border-bottom: 3px solid var(--color-primary);
}

.nav-btn {
    background: none;
    border: none;
    color: var(--color-gray-light);
    padding: 15px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    flex-shrink: 0;
}

.nav-btn:hover {
    background-color: rgba(198, 40, 40, 0.1);
    color: var(--color-white);
}

.nav-btn.active {
    color: var(--color-white);
    border-bottom-color: var(--color-primary);
    background-color: rgba(198, 40, 40, 0.15);
}

/* CONTENIDO PRINCIPAL */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.section-header h2 {
    font-size: 28px;
    color: var(--color-secondary);
    margin: 0;
}

/* ===========================
   BOTONES
   =========================== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-gray-dark);
    color: var(--color-white);
}

.btn-secondary:hover {
    background-color: #616161;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: #d32f2f;
    color: var(--color-white);
}

.btn-danger:hover {
    background-color: #b71c1c;
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.btn-success:hover {
    background-color: #1b5e20;
}

.btn-small {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-large {
    padding: 14px 30px;
    font-size: 16px;
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-login {
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

/* ===========================
   DASHBOARD
   =========================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border-left: 4px solid var(--color-primary);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.stat-icon {
    font-size: 40px;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 12px;
    color: var(--color-gray-dark);
    margin: 0;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-primary);
    margin: 5px 0 0 0;
}

.dashboard-info {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-light);
}

.info-box h3 {
    color: var(--color-primary);
    margin-bottom: 20px;
    font-size: 18px;
}

.info-box ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.info-box li {
    padding: 10px;
    background: var(--color-gray-light);
    border-radius: var(--border-radius);
    font-size: 14px;
}

/* ===========================
   TABLAS
   =========================== */
.table-responsive {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow-x: auto;
    box-shadow: var(--shadow-light);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #1a1a1a 100%);
    color: var(--color-white);
}

.data-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--color-gray-medium);
    font-size: 13px;
}

.data-table tbody tr:hover {
    background-color: var(--color-gray-light);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.empty-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-gray-dark);
    font-style: italic;
}

/* Acciones en tablas */
.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.action-btn {
    padding: 6px 12px;
    font-size: 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn.edit {
    background-color: var(--color-info);
    color: white;
}

.action-btn.edit:hover {
    background-color: #1565c0;
}

.action-btn.delete {
    background-color: var(--color-danger);
    color: white;
}

.action-btn.delete:hover {
    background-color: #b71c1c;
}

.action-btn.view {
    background-color: var(--color-success);
    color: white;
}

.action-btn.view:hover {
    background-color: #1b5e20;
}

/* ===========================
   TARJETAS (CARDS)
   =========================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border-top: 4px solid var(--color-primary);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.card-header {
    margin-bottom: 15px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-secondary);
    margin: 0;
}

.card-date {
    font-size: 12px;
    color: var(--color-gray-dark);
    margin-top: 5px;
}

.card-info {
    font-size: 13px;
    color: var(--color-gray-dark);
    margin: 10px 0;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.card-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-actions {
    display: flex;
    gap: 8px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--color-gray-medium);
}

.card-actions button {
    flex: 1;
}

/* ===========================
   BÚSQUEDA Y FILTROS
   =========================== */
.search-filter-bar {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input,
.filter-select {
    padding: 10px 15px;
    border: 1px solid var(--color-gray-medium);
    border-radius: var(--border-radius);
    font-size: 14px;
    font-family: inherit;
    background-color: var(--color-white);
}

.search-input {
    flex: 1;
    min-width: 200px;
}

.filter-select {
    min-width: 150px;
}

.search-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.1);
}

/* ===========================
   ASISTENCIA
   =========================== */
.asistencia-header {
    background: var(--color-white);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow-light);
}

.asistencia-header h3 {
    margin: 0 0 10px 0;
    color: var(--color-secondary);
}

.asistencia-header p {
    margin: 0 0 15px 0;
    font-size: 13px;
    color: var(--color-gray-dark);
}

.asistencia-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.asistencia-buttons button {
    flex: 1;
    min-width: 200px;
}

.asistencia-footer {
    background: var(--color-white);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    box-shadow: var(--shadow-light);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.asistencia-footer button {
    flex: 1;
    min-width: 200px;
}

/* Estados de asistencia */
.attendance-state {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.attendance-btn {
    padding: 6px 12px;
    border: 2px solid var(--color-gray-medium);
    background: var(--color-white);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: var(--transition);
}

.attendance-btn:hover {
    border-color: var(--color-primary);
}

.attendance-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.attendance-btn.state-asistio {
    border-color: var(--color-success);
}
.attendance-btn.state-asistio.active {
    background: var(--color-success);
    border-color: var(--color-success);
}

.attendance-btn.state-falta {
    border-color: var(--color-danger);
}
.attendance-btn.state-falta.active {
    background: var(--color-danger);
    border-color: var(--color-danger);
}

.attendance-btn.state-excusa {
    border-color: var(--color-warning);
}
.attendance-btn.state-excusa.active {
    background: var(--color-warning);
    border-color: var(--color-warning);
}

.attendance-btn.state-incapacidad {
    border-color: var(--color-info);
}
.attendance-btn.state-incapacidad.active {
    background: var(--color-info);
    border-color: var(--color-info);
}

/* ===========================
   ESTADÍSTICAS
   =========================== */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--color-gray-medium);
}

.tab-btn {
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-dark);
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--color-primary);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-box {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow-light);
    border-top: 4px solid var(--color-primary);
}

.stat-title {
    font-size: 14px;
    color: var(--color-gray-dark);
    margin: 0;
    font-weight: 500;
    text-transform: uppercase;
}

.stat-percent {
    font-size: 42px;
    font-weight: bold;
    color: var(--color-primary);
    margin: 15px 0;
}

.stat-percent.danger {
    color: var(--color-danger);
}

.stat-percent.warning {
    color: var(--color-warning);
}

.stat-percent.info {
    color: var(--color-info);
}

.stat-small {
    font-size: 12px;
    color: var(--color-gray-dark);
    margin: 0;
}

.chart-container {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-light);
    margin-bottom: 30px;
}

.chart-container h3 {
    margin-top: 0;
    color: var(--color-secondary);
    font-size: 18px;
}

.stats-por-unidad {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.unidad-stats {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--color-primary);
}

.unidad-stats h4 {
    margin-top: 0;
    color: var(--color-secondary);
}

.unidad-stats p {
    margin: 8px 0;
    font-size: 13px;
}

/* ===========================
   REPORTES
   =========================== */
.report-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.report-buttons button {
    flex: 1;
    min-width: 150px;
}

.reporte-preview {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-gray-medium);
}

.report-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-primary);
}

.report-header h2 {
    color: var(--color-primary);
    font-size: 24px;
    margin-bottom: 5px;
}

.report-header p {
    color: var(--color-gray-dark);
    font-size: 13px;
}

.report-info {
    background: var(--color-gray-light);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.report-info p {
    margin: 8px 0;
    font-size: 13px;
}

.report-table {
    margin-bottom: 20px;
    overflow-x: auto;
}

.report-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.report-table th {
    background: var(--color-secondary);
    color: white;
    padding: 10px;
    text-align: left;
    font-weight: 600;
}

.report-table td {
    padding: 10px;
    border-bottom: 1px solid var(--color-gray-medium);
}

.report-table tbody tr:hover {
    background: var(--color-gray-light);
}

.report-summary {
    background: var(--color-gray-light);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.report-summary p {
    margin: 0;
    font-size: 13px;
}

.report-observations {
    background: var(--color-gray-light);
    padding: 15px;
    border-radius: var(--border-radius);
}

.report-observations h4 {
    margin-top: 0;
    color: var(--color-secondary);
    font-size: 14px;
}

.report-observations p {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
}

/* ===========================
   SANCIONES
   =========================== */
.sancion-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.sancion-badge.sancionado {
    background-color: rgba(198, 40, 40, 0.1);
    color: var(--color-danger);
}

/* ===========================
   LOGS
   =========================== */
.logs-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.log-entry {
    background: var(--color-white);
    border-left: 4px solid var(--color-primary);
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    font-size: 13px;
}

.log-entry.modified {
    border-left-color: var(--color-warning);
}

.log-time {
    font-weight: 600;
    color: var(--color-primary);
}

.log-user {
    color: var(--color-secondary);
    font-weight: 500;
}

.log-action {
    color: var(--color-gray-dark);
    margin-top: 8px;
}

/* ===========================
   MODALES
   =========================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 30px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-heavy);
    animation: slideUp 0.3s ease;
    position: relative;
}

.modal-small {
    max-width: 400px;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    color: var(--color-gray-dark);
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-primary);
    transform: scale(1.2);
}

.modal-content h2,
.modal-content h3 {
    margin-top: 0;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.form-modal {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.form-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.form-buttons button {
    flex: 1;
    min-width: 120px;
}

/* ===========================
   NOTIFICACIONES (TOAST)
   =========================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    max-width: 400px;
}

.toast {
    background: var(--color-white);
    border-left: 4px solid var(--color-primary);
    padding: 15px 20px;
    margin-bottom: 10px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
    animation: slideInRight 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.toast.success {
    border-left-color: var(--color-success);
}

.toast.error {
    border-left-color: var(--color-danger);
}

.toast.warning {
    border-left-color: var(--color-warning);
}

.toast.info {
    border-left-color: var(--color-info);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===========================
   RESPONSIVIDAD
   =========================== */
@media (max-width: 1024px) {
    .main-content {
        padding: 20px;
    }

    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    /* HEADER */
    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .header-logo {
        flex-direction: column;
        gap: 10px;
    }

    .header-title h1 {
        font-size: 20px;
    }

    .header-user {
        width: 100%;
        justify-content: space-between;
    }

    /* NAVBAR */
    .navbar {
        padding: 0 10px;
    }

    .nav-btn {
        padding: 12px 12px;
        font-size: 12px;
    }

    /* CONTENIDO */
    .main-content {
        padding: 15px;
    }

    .section-header h2 {
        font-size: 22px;
    }

    /* GRID */
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-por-unidad {
        grid-template-columns: 1fr;
    }

    .search-filter-bar {
        flex-direction: column;
    }

    .search-input,
    .filter-select {
        width: 100%;
    }

    /* TABLAS */
    .data-table {
        font-size: 12px;
    }

    .data-table th,
    .data-table td {
        padding: 10px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        padding: 8px;
    }

    /* MODAL */
    .modal-content {
        padding: 20px;
        max-width: 90vw;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* ASISTENCIA */
    .asistencia-buttons {
        flex-direction: column;
    }

    .asistencia-buttons button {
        width: 100%;
        min-width: unset;
    }

    .asistencia-footer button {
        width: 100%;
        min-width: unset;
    }

    /* REPORTES */
    .report-buttons button {
        width: 100%;
        min-width: unset;
    }

    .reporte-preview {
        padding: 20px;
    }

    .report-summary {
        grid-template-columns: 1fr;
    }

    /* LOGIN */
    .login-card {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    /* HEADER */
    .header {
        padding: 15px;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }

    .header-title h1 {
        font-size: 18px;
    }

    .header-title p {
        font-size: 11px;
    }

    .header-user {
        flex-direction: column;
        gap: 10px;
    }

    .header-user span {
        font-size: 12px;
    }

    /* NAVBAR */
    .nav-btn {
        padding: 10px 8px;
        font-size: 10px;
    }

    /* CONTENIDO */
    .main-content {
        padding: 10px;
    }

    .section-header h2 {
        font-size: 18px;
    }

    /* GRID */
    .stat-card {
        gap: 10px;
    }

    .stat-icon {
        font-size: 30px;
    }

    .stat-number {
        font-size: 24px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    /* TABLAS */
    .data-table {
        font-size: 11px;
    }

    .data-table th,
    .data-table td {
        padding: 8px;
    }

    /* MODAL */
    .modal {
        padding: 10px;
    }

    .modal-content {
        padding: 15px;
    }

    .modal-close {
        font-size: 24px;
        width: 25px;
        height: 25px;
    }

    .form-buttons {
        flex-direction: column;
    }

    .form-buttons button {
        width: 100%;
    }

    /* LOGIN */
    .login-card {
        padding: 15px;
    }

    .login-header h1 {
        font-size: 20px;
    }

    /* TOAST */
    .toast-container {
        max-width: calc(100vw - 20px);
    }
}

/* ===========================
   UTILIDADES
   =========================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.text-danger {
    color: var(--color-danger);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-info {
    color: var(--color-info);
}

/* Scroll */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-gray-light);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-medium);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-dark);
}