/* ========================================================
   SISTEMA DE RESERVAS DE SALA - INTERCONSULTING
   Paleta: Naranja Corporativo (#F5841F), Carbón (#231F20)
   ======================================================== */

:root {
    --color-primary: #F5841F;
    --color-primary-hover: #DC6F10;
    --color-primary-light: #FFF2E6;
    --color-dark: #231F20;
    --color-gray-dark: #4A4A4A;
    --color-gray-medium: #8C8C8C;
    --color-gray-light: #EBEBEB;
    --color-bg: #F5F7FA;
    --color-card: #FFFFFF;
    --color-border: #E2E8F0;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 4px 16px rgba(35, 31, 32, 0.08);
    --shadow-modal: 0 20px 40px rgba(0, 0, 0, 0.18);
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-dark);
    line-height: 1.5;
    min-height: 100vh;
}

/* ================= HEADER ================= */
.app-header {
    background: #ffffff;
    border-bottom: 2px solid var(--color-primary);
    box-shadow: var(--shadow-subtle);
    padding: 12px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-logo {
    height: 42px;
    width: auto;
    display: block;
}

.header-title-wrap {
    display: flex;
    flex-direction: column;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: 0.8rem;
    color: var(--color-gray-dark);
    font-weight: 500;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: 0 4px 12px rgba(245, 132, 31, 0.35);
}

.btn-secondary {
    background-color: #ffffff;
    color: var(--color-dark);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: #f8fafc;
    border-color: var(--color-gray-medium);
}

.btn-outline {
    background: transparent;
    color: var(--color-dark);
    border-color: var(--color-border);
}

.btn-outline:hover {
    background: #edf2f7;
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.82rem;
}

/* ================= CONTENEDOR PRINCIPAL ================= */
.main-wrapper {
    max-width: 1440px;
    margin: 20px auto;
    padding: 0 20px 40px;
}

/* Barra de controles semanales */
.calendar-controls {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    box-shadow: var(--shadow-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 18px;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.current-range-display {
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.range-label {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
}

.quick-date-picker {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-date {
    padding: 7px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--color-dark);
    outline: none;
    font-family: inherit;
}

.input-date:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* ================= VISTA DE LA GRILLA SEMANAL ================= */
.calendar-grid-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.calendar-scroll-wrap {
    overflow-x: auto;
    max-height: calc(100vh - 240px);
    overflow-y: auto;
    position: relative;
    -webkit-overflow-scrolling: touch;
}

.calendar-table {
    width: 100%;
    min-width: 860px;
    border-collapse: separate;
    border-spacing: 0;
}

/* Cabecera de días */
.calendar-table thead th {
    background: #FAFAFA;
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 2px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
}

/* Esquina superior izquierda (fija en x e y) */
.calendar-table thead th:first-child {
    width: 75px;
    min-width: 75px;
    position: sticky;
    left: 0;
    top: 0;
    z-index: 40; /* Mayor que cabecera (20) y celdas de hora (30) */
    background: #F4F6F8;
    color: var(--color-gray-dark);
    font-size: 0.8rem;
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.05);
}

.day-header-title {
    font-size: 0.95rem;
    color: var(--color-dark);
    font-weight: 700;
    text-transform: capitalize;
}

.day-header-date {
    font-size: 0.8rem;
    color: var(--color-gray-medium);
    margin-top: 2px;
    font-weight: 500;
}

.day-header-today {
    background: var(--color-primary-light) !important;
}

.day-header-today .day-header-title {
    color: var(--color-primary);
}

.day-header-today .badge-today {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 10px;
    margin-top: 3px;
    font-weight: 700;
    text-transform: uppercase;
}

/* Columna de Horarios y Celdas de 30 min */
.calendar-table tbody tr {
    height: 44px;
}

/* Columna de Horas: Z-INDEX 30 para que NINGUNA reserva la tape */
.time-cell {
    border-right: 2px solid var(--color-border);
    border-bottom: 1px solid #f0f0f0;
    padding: 4px 8px;
    text-align: right;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--color-gray-dark);
    background: #FCFCFC;
    vertical-align: top;
    user-select: none;
    position: sticky;
    left: 0;
    z-index: 30; /* Clave: supera el z-index de las reservas (15) */
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.04);
}

.time-cell.hour-slot {
    border-top: 1px solid var(--color-border);
    font-weight: 700;
    color: var(--color-dark);
}

.time-cell.half-slot {
    color: #A0AEC0;
}

/* Celdas interactivas de la grilla */
.grid-slot {
    border-right: 1px solid #EFEFEF;
    border-bottom: 1px solid #EFEFEF;
    padding: 2px;
    vertical-align: top;
    position: relative;
    cursor: pointer;
    background: #ffffff;
    transition: background-color 0.15s ease;
}

.grid-slot.hour-start {
    border-top: 1px solid #E8ECEF;
}

.grid-slot:hover {
    background-color: #FFF9F3;
}

.grid-slot.today-col {
    background-color: #FFFAF5;
}

.grid-slot.today-col:hover {
    background-color: #FFF0DE;
}

/* Botón flotante al hover en slot vacío */
.slot-add-indicator {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.75rem;
    color: var(--color-primary);
    font-weight: 600;
    pointer-events: none;
}

.grid-slot:hover .slot-add-indicator {
    display: block;
}

/* Bloques de Reserva */
.reservation-block {
    position: absolute;
    left: 4px;
    right: 4px;
    top: 2px;
    border-radius: 6px;
    padding: 6px 8px;
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    z-index: 15;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.reservation-block:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
    z-index: 18;
}

.res-time {
    font-size: 0.72rem;
    font-weight: 700;
    opacity: 0.95;
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.res-title {
    font-size: 0.83rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

.res-person {
    font-size: 0.72rem;
    opacity: 0.9;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

/* ================= MODALES ================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(3px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 16px;
}

.modal-container {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-modal);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlideIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-container.modal-lg {
    max-width: 760px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray-medium);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    border-radius: 4px;
}

.modal-close-btn:hover {
    color: var(--color-dark);
    background: #edf2f7;
}

.modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #FAFAFA;
    flex-shrink: 0;
}

/* Formulario */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.form-label .required {
    color: var(--color-danger);
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--color-dark);
    background: #fff;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-row {
    display: flex;
    gap: 14px;
}

.form-row .form-group {
    flex: 1;
}

.color-options {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 6px;
}

.color-dot-label {
    cursor: pointer;
}

.color-dot-label input {
    display: none;
}

.color-dot {
    display: block;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: transform 0.15s, border-color 0.15s;
}

.color-dot-label input:checked + .color-dot {
    border-color: #231F20;
    transform: scale(1.15);
}

/* Auditoría Modal Tabla y Estilos */
.audit-toolbar {
    margin-bottom: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.audit-search-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
}

.audit-table-wrap {
    max-height: 420px;
    overflow-y: auto;
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    -webkit-overflow-scrolling: touch;
}

.audit-table {
    width: 100%;
    min-width: 520px; /* Asegura que las columnas no colapsen en mobile */
    border-collapse: collapse;
    font-size: 0.84rem;
}

.audit-table th {
    background: #F8FAFC;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 5;
}

.audit-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

.audit-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-creacion {
    background: #D1FAE5;
    color: #065F46;
}

.badge-modificacion {
    background: #FEF3C7;
    color: #92400E;
}

.badge-eliminacion {
    background: #FEE2E2;
    color: #991B1B;
}

.audit-user {
    font-weight: 600;
    color: var(--color-dark);
}

.audit-time {
    color: var(--color-gray-dark);
    font-size: 0.78rem;
    white-space: nowrap;
}

/* Toast Notificaciones */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--color-dark);
    color: #ffffff;
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 260px;
    max-width: 380px;
    animation: toastFade 0.3s ease;
}

.toast.toast-success {
    border-left: 5px solid var(--color-success);
}

.toast.toast-error {
    border-left: 5px solid var(--color-danger);
}

@keyframes toastFade {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================================
   RESPONSIVE DESIGN (TABLETS & SMARTPHONES)
   ======================================================== */
@media (max-width: 768px) {
    /* Header compacto */
    .app-header {
        padding: 8px 12px;
    }

    .header-container {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
    }

    .header-brand {
        gap: 8px;
    }

    .header-logo {
        height: 30px;
    }

    .header-title {
        font-size: 0.98rem;
        line-height: 1.1;
    }

    .header-subtitle {
        display: none; /* Oculta subtítulo en pantallas pequeñas para ganar espacio */
    }

    .header-actions {
        gap: 6px;
    }

    .header-actions .btn {
        padding: 7px 10px;
        font-size: 0.78rem;
    }

    /* Contenedor Principal */
    .main-wrapper {
        margin: 10px auto;
        padding: 0 10px 24px;
    }

    /* Barra de controles de navegación semanal */
    .calendar-controls {
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        gap: 10px;
    }

    .calendar-controls .nav-buttons {
        display: flex;
        justify-content: space-between;
        width: 100%;
    }

    .calendar-controls .nav-buttons .btn {
        flex: 1;
        text-align: center;
        padding: 7px 4px;
    }

    .current-range-display {
        justify-content: center;
        order: -1; /* El rango de fecha queda arriba de los botones de navegación */
    }

    .range-label {
        font-size: 0.98rem;
        text-align: center;
    }

    .quick-date-picker {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: #F8FAFC;
        padding: 6px 10px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--color-border);
    }

    .quick-date-picker .input-date {
        flex: 1;
        max-width: 170px;
        padding: 5px 8px;
    }

    /* Grilla de Calendario en Mobile */
    .calendar-scroll-wrap {
        /* Ajuste de altura dinámica para pantallas móviles modernas */
        max-height: calc(100vh - 210px);
        max-height: calc(100dvh - 210px);
    }

    .calendar-table {
        min-width: 760px; /* Permite visualizar 2 o 3 días cómodamente y deslizar con fluidez */
    }

    .calendar-table thead th:first-child {
        width: 65px;
        min-width: 65px;
    }

    .time-cell {
        font-size: 0.72rem;
        padding: 4px 6px;
    }

    .day-header-title {
        font-size: 0.88rem;
    }

    .day-header-date {
        font-size: 0.75rem;
    }

    /* MODALES EN MOBILE */
    .modal-overlay {
        padding: 8px;
        align-items: flex-end; /* Efecto bottom-sheet muy amigable en smartphones */
    }

    .modal-container {
        max-height: 94vh;
        max-height: 94dvh;
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
    }

    .modal-header {
        padding: 12px 16px;
    }

    .modal-title {
        font-size: 1rem;
    }

    .modal-body {
        padding: 14px 16px;
    }

    .modal-footer {
        padding: 12px 16px;
        background: #ffffff;
    }

    .form-group {
        margin-bottom: 12px;
    }

    /* "Desde" y "Hasta" se mantienen en una sola fila en mobile para ahorrar espacio */
    .form-row.form-row-time {
        display: flex !important;
        flex-direction: row !important;
        gap: 10px !important;
    }

    .form-row:not(.form-row-time) {
        flex-direction: column;
        gap: 0;
    }

    /* Modal de auditoría */
    .audit-toolbar {
        flex-direction: column;
    }

    .audit-search-input {
        width: 100%;
    }
}