/* ============================================
   REGISTRO PESTICIDAS - ESTILOS
   Temática: Agrícola/Campos de Cultivo
   Paleta: Verdes, tierra, crema
   ============================================ */

:root {
    --verde-oscuro: #1a5c2a;
    --verde-medio: #2d8a4e;
    --verde-claro: #4caf50;
    --verde-pastel: #a5d6a7;
    --verde-hoja: #66bb6a;
    --marron: #5d4037;
    --marron-claro: #8d6e63;
    --crema: #fff8e1;
    --crema-oscuro: #fff3c4;
    --gris-claro: #f5f5f5;
    --gris: #9e9e9e;
    --blanco: #ffffff;
    --sombra: rgba(0,0,0,0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gris-claro);
    color: #333;
    line-height: 1.6;
}

/* ============ LOGIN ============ */

.login-body {
    background: linear-gradient(135deg, var(--verde-oscuro) 0%, var(--verde-medio) 50%, var(--verde-claro) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--blanco);
    border-radius: 12px;
    box-shadow: 0 10px 40px var(--sombra);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--verde-oscuro), var(--verde-medio));
    color: var(--blanco);
    padding: 30px;
    text-align: center;
}

.login-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.login-header h1 {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 5px;
}

.login-header p {
    font-size: 0.85em;
    opacity: 0.9;
}

.login-card form {
    padding: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--marron);
    font-size: 0.9em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 0.95em;
    transition: var(--transition);
    background: var(--blanco);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--verde-medio);
    box-shadow: 0 0 0 3px rgba(45, 138, 78, 0.15);
}

.form-error {
    background: #ffebee;
    color: #c62828;
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    font-size: 0.85em;
    text-align: center;
}

/* Contenedor del formulario para posicionamiento relativo */
.form-card-body {
    position: relative;
}

/* Mensaje flotante sobre los controles - no desplaza nada */
.form-error-top {
    position: absolute;
    top: 8px;
    left: 10px;
    right: 10px;
    z-index: 50;
    padding: 10px 12px;
    font-size: 0.88em;
    font-weight: 600;
    border: 2px solid #ef9a9a;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    animation: fadeInMsg 0.3s ease-out;
    text-align: center;
}

@keyframes fadeInMsg {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============ BOTONES ============ */

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--sombra);
}

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

.btn-primary {
    background: var(--verde-medio);
    color: var(--blanco);
}

.btn-primary:hover {
    background: var(--verde-oscuro);
}

.btn-success {
    background: var(--verde-claro);
    color: var(--blanco);
}

.btn-success:hover {
    background: #388e3c;
}

.btn-danger {
    background: #e53935;
    color: var(--blanco);
}

.btn-danger:hover {
    background: #c62828;
}

.btn-warning {
    background: #ffa726;
    color: var(--blanco);
}

.btn-warning:hover {
    background: #f57c00;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--verde-medio);
    color: var(--verde-medio);
}

.btn-outline:hover {
    background: var(--verde-medio);
    color: var(--blanco);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8em;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Spinner */
.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--blanco);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============ HEADER / TOPBAR ============ */

.topbar {
    background: linear-gradient(135deg, var(--verde-oscuro), var(--verde-medio));
    color: var(--blanco);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px var(--sombra);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1em;
}

.topbar-brand span {
    font-size: 1.4em;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.85em;
}

.topbar-user a {
    color: var(--blanco);
    text-decoration: none;
    opacity: 0.85;
    transition: var(--transition);
}

.topbar-user a:hover {
    opacity: 1;
}

/* ============ CONTENEDOR PRINCIPAL ============ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* ============ TARJETAS (CARDS) ============ */

/* ============ LAYOUT 2 COLUMNAS ============ */

.container {
    padding: 10px;
    max-width: 100%;
}

.dashboard-layout {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.col-form {
    width: 400px;
    min-width: 340px;
    flex-shrink: 0;
}

.col-form .card {
    margin-bottom: 8px;
}

.col-table {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.col-table .card {
    min-height: calc(100vh - 80px);
}

/* ============ CARDS COMPACTAS ============ */

.col-form .card {
    margin-bottom: 8px;
}

.card-compact .card-header {
    padding: 6px 10px;
}

.card-compact .card-header h3 {
    font-size: 0.8em;
}

.card-compact .card-body {
    padding: 8px 10px;
}

.card-compact label {
    font-size: 0.7em;
    margin-bottom: 1px;
    display: block;
    color: var(--marron);
    font-weight: 500;
}

.card-compact input,
.card-compact select {
    font-size: 0.78em;
    padding: 4px 6px;
    width: 100%;
    box-sizing: border-box;
}

.card-compact input[readonly],
.card-compact input:read-only {
    background: #e8e8e8;
    color: #555;
    cursor: default;
}

/* ============ COMPACT FORM ROWS ============ */

.comp-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
}

.comp-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.comp-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
}

.comp-row-4 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 4px;
}

.comp-row-4 label,
.comp-row-3 label,
.comp-row-2 label {
    font-size: 0.68em;
    margin-bottom: 1px;
}

/* ============ MEDIA QUERY: PANTALLA ESTRECHA ============ */

@media (max-width: 1000px) {
    .dashboard-layout {
        flex-direction: column;
    }
    .col-form {
        width: 100%;
        min-width: 0;
    }
    .col-table .card {
        min-height: auto;
    }
}

/* ============ TURNOS ============ */

.turno-row {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid #f0f0f0;
}

.turno-row:last-child {
    border-bottom: none;
}

.turno-row input[readonly] {
    background: #e8e8e8;
    cursor: default;
}

.card {
    background: var(--blanco);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px var(--sombra);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    background: var(--crema);
    padding: 15px 20px;
    border-bottom: 1px solid var(--verde-pastel);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.card-header h2, .card-header h3 {
    font-size: 1.1em;
    color: var(--verde-oscuro);
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* ============ SELECTORES (FUNDO/LOTE) ============ */

.selector-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.selector-row .form-group {
    margin-bottom: 0;
}

.tipo-registro {
    display: flex;
    gap: 15px;
    align-items: center;
    padding: 10px 0;
}

.tipo-registro label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-weight: 500;
    color: var(--marron);
}

.tipo-registro input[type="radio"] {
    accent-color: var(--verde-medio);
    width: 16px;
    height: 16px;
}

/* ============ FORMULARIO DE REGISTRO ============ */

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 10px;
}

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

.form-row.cuatro-col {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

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

.form-section-title {
    font-size: 0.85em;
    font-weight: 600;
    color: var(--verde-oscuro);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--verde-pastel);
}

/* ============ TABLA ============ */

.table-container {
    overflow-x: auto;
    overflow-y: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85em;
}

table thead {
    background: var(--verde-oscuro);
    color: var(--blanco);
}

table th {
    padding: 10px 12px;
    text-align: left;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

table th:hover {
    background: rgba(255,255,255,0.1);
}

table td {
    padding: 8px 12px;
    border-bottom: 1px solid #eee;
    white-space: nowrap;
}

table tbody tr:hover {
    background: var(--crema);
}

table tbody tr:nth-child(even) {
    background: #fafafa;
}

table tbody tr:nth-child(even):hover {
    background: var(--crema-oscuro);
}

/* ============ MODAL ============ */

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--blanco);
    border-radius: 12px;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: modalIn 0.2s ease;
}

.modal-lg {
    max-width: 900px;
}

@keyframes modalIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    background: var(--crema);
    padding: 15px 20px;
    border-bottom: 1px solid var(--verde-pastel);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1;
}

.modal-header h3 {
    font-size: 1.1em;
    color: var(--verde-oscuro);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.3em;
    cursor: pointer;
    color: var(--gris);
    padding: 4px 8px;
    border-radius: 4px;
    transition: var(--transition);
}

.modal-close:hover {
    background: #eee;
    color: #333;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ============ BÚSQUEDA ============ */

.search-box {
    position: relative;
    margin-bottom: 15px;
}

.search-box input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 0.9em;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--verde-medio);
    outline: none;
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9em;
}

/* ============ VÁLVULAS LIST ============ */

.valvulas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
    margin-bottom: 15px;
}

.valvula-item {
    padding: 8px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85em;
    user-select: none;
}

.valvula-item:hover {
    border-color: var(--verde-medio);
    background: var(--verde-pastel);
}

.valvula-item.selected {
    border-color: var(--verde-oscuro);
    background: var(--verde-medio);
    color: var(--blanco);
    font-weight: 500;
}

/* ============ BADGES ============ */

.info-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 500;
}

.badge-success {
    background: var(--verde-pastel);
    color: var(--verde-oscuro);
}

.badge-warning {
    background: #fff3e0;
    color: #e65100;
}

/* ============ UTILIDADES ============ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-10 { gap: 10px; }
.gap-15 { gap: 15px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none; }

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--gris);
}

.empty-state p {
    font-size: 1.1em;
    margin-top: 10px;
}

/* ============ RESPONSIVE ============ */

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-row.tres-col,
    .form-row.cuatro-col {
        grid-template-columns: 1fr 1fr;
    }
    
    .modal {
        max-width: 100%;
        margin: 10px;
        max-height: 95vh;
    }
    
    .selector-row {
        grid-template-columns: 1fr;
    }
    
    .topbar-brand span {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-row.tres-col,
    .form-row.cuatro-col {
        grid-template-columns: 1fr;
    }
}

/* ============ PAGINACIÓN ============ */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 15px 0 5px;
    flex-wrap: wrap;
}

.pagination .btn-sm {
    min-width: 36px;
    justify-content: center;
    font-size: 0.8em;
}

#infoPagina {
    padding: 0 8px;
    font-size: 0.85em !important;
    white-space: nowrap;
    font-weight: 500;
}

/* ============================================
   FRECUENCIA BADGE (clickeable)
   ============================================ */

.frecuencia-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 6px;
    background: var(--crema);
    border: 2px solid var(--verde-pastel);
    border-radius: 6px;
    font-size: 0.78em;
    font-weight: 600;
    color: var(--verde-oscuro);
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 28px;
    user-select: none;
    box-sizing: border-box;
}

.frecuencia-badge:hover {
    border-color: var(--verde-medio);
    background: var(--crema-oscuro);
    box-shadow: 0 0 0 3px rgba(45, 138, 78, 0.1);
}

.frecuencia-badge .frec-icon {
    margin-right: 6px;
    font-size: 0.9em;
}

.frecuencia-badge .frec-valor {
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* ============================================
   MENÚ PRINCIPAL (menu.php)
   ============================================ */

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

.menu-card {
    background: var(--blanco);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 20px var(--sombra);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    border: 2px solid transparent;
}

.menu-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.menu-card-verde:hover {
    border-color: var(--verde-medio);
}

.menu-card-marron:hover {
    border-color: var(--marron-claro);
}

.menu-card-icon {
    font-size: 3.5em;
    line-height: 1;
}

.menu-card-title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--verde-oscuro);
}

.menu-card-marron .menu-card-title {
    color: var(--marron);
}

.menu-card-desc {
    font-size: 0.85em;
    color: var(--gris);
    line-height: 1.5;
    max-width: 280px;
}

.menu-card-action {
    margin-top: 8px;
    font-size: 0.9em;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.menu-card-verde .menu-card-action {
    color: var(--blanco);
    background: var(--verde-medio);
}

.menu-card-verde:hover .menu-card-action {
    background: var(--verde-oscuro);
}

.menu-card-marron .menu-card-action {
    color: var(--blanco);
    background: var(--marron-claro);
}

.menu-card-marron:hover .menu-card-action {
    background: var(--marron);
}

/* ============================================
   PESTAÑAS (TABS) - tablas.html
   ============================================ */

.tab-bar {
    display: flex;
    border-bottom: 3px solid var(--verde-pastel);
    margin-bottom: 20px;
    gap: 4px;
}

.tab-item {
    padding: 10px 24px 9px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    color: var(--gris);
    border-bottom: 3px solid transparent;
    margin-bottom: 0;
    transition: all 0.3s ease;
    white-space: nowrap;
    user-select: none;
}

.tab-item:hover {
    color: var(--verde-oscuro);
    background: var(--crema);
    border-radius: 8px 8px 0 0;
}

.tab-item.active {
    color: var(--verde-oscuro);
    font-weight: 600;
    border-bottom-color: var(--verde-oscuro);
}

.tab-content {
    display: none;
    animation: fadeIn 0.25s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   RESPONSIVE - MENÚ Y TABS
   ============================================ */

@media (max-width: 600px) {
    .menu-grid {
        grid-template-columns: 1fr;
        margin: 20px auto;
        padding: 0 10px;
        gap: 20px;
    }
    
    .menu-card {
        padding: 30px 20px;
    }
    
    .tab-item {
        padding: 10px 16px;
        font-size: 0.82em;
    }
}

/* ============================================
   FOOTER - COPYRIGHT
   ============================================ */

.footer {
    background: linear-gradient(135deg, var(--verde-oscuro), var(--verde-medio));
    color: var(--blanco);
    text-align: center;
    padding: 6px 20px;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--verde-pastel), var(--verde-hoja), var(--verde-pastel));
}

.footer p {
    margin: 0;
    font-size: 0.72em;
    line-height: 1.6;
    opacity: 0.9;
}

.footer p strong {
    color: var(--verde-pastel);
    font-weight: 600;
}

/* Footer pegado abajo - solo para el login */
.login-body {
    background: linear-gradient(135deg, var(--verde-oscuro) 0%, var(--verde-medio) 50%, var(--verde-claro) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-body .login-container {
    margin-bottom: auto;
}

.login-body .footer {
    margin-top: auto;
}