/* Estricto Diseño Flat y Minimalista */

:root {
    /* Paleta de colores - Elegante y moderna, basada en el diseño de referencia */
    --bg-main: #f0f2f5;
    --bg-sidebar: #192b45; /* Dark Blue */
    --bg-cards: #ffffff;
    --border-color: #e2e8f0;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-sidebar: #cbd5e1;
    --text-sidebar-active: #ffffff;
    --primary-color: #f39c12; /* Orange */
    --primary-hover: #d68910;
    
    /* Colores identificatorios de salones */
    --salon-grande: #192b45; /* Azul oscuro elegante */
    --salon-grande-bg: #e2e8f0;
    --salon-grande-border: #cbd5e1;
    
    --salon-chico: #f39c12; /* Naranja elegante */
    --salon-chico-bg: #fef3c7;
    --salon-chico-border: #fde68a;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
}

.layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px;
}

.brand {
    margin-bottom: 40px;
}

.brand h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-sidebar-active);
}

.brand .subtitle {
    font-size: 0.875rem;
    color: var(--text-sidebar);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    text-decoration: none;
    color: var(--text-sidebar);
    padding: 10px 12px;
    border-radius: 4px; /* Bordes redondeados sutiles */
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.15s ease;
}

.nav-item:hover, .nav-item.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-sidebar-active);
}

.legend {
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.legend h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-sidebar);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    margin-bottom: 8px;
    color: var(--text-sidebar);
}

.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.color-grande { background-color: var(--salon-grande); }
.color-chico { background-color: var(--salon-chico); }

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-main);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    background-color: var(--bg-cards);
    border-bottom: 1px solid var(--border-color);
}

.month-selector {
    display: flex;
    align-items: center;
    gap: 16px;
}

.month-selector h2 {
    font-size: 1.5rem;
    font-weight: 600;
    min-width: 200px;
    text-align: center;
}

/* Buttons (Strictly Flat) */
button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

.btn-icon {
    padding: 8px 12px;
    font-size: 1.2rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-main);
}

.btn-icon:hover {
    background-color: var(--bg-sidebar);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--primary-color);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-sidebar);
}

/* Calendar Grid */
.calendar-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px 32px;
    overflow-y: auto;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    border: 1px solid var(--border-color);
    border-bottom: none;
    background-color: var(--bg-cards);
}

.day-name {
    padding: 12px;
    text-align: right;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    border-right: 1px solid var(--border-color);
}

.day-name:last-child {
    border-right: none;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-auto-rows: minmax(120px, auto);
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
}

.calendar-cell {
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 8px;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-cards);
}

.calendar-cell.out-of-month {
    background-color: #fcfcfc;
}

.calendar-cell.out-of-month .date-number {
    color: #adb5bd;
}

.date-number {
    text-align: right;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
}

/* Events */
.events-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.event-badge {
    padding: 4px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    line-height: 1.2;
    cursor: pointer;
    border-left: 3px solid;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.event-badge:hover {
    filter: brightness(0.95);
}

.badge-grande {
    background-color: var(--salon-grande-bg);
    color: #084298;
    border-left-color: var(--salon-grande);
}

.badge-chico {
    background-color: var(--salon-chico-bg);
    color: #9a4e0a;
    border-left-color: var(--salon-chico);
}

.event-time {
    font-weight: 700;
    margin-right: 4px;
}

.event-title {
    font-weight: 500;
}

/* Modal Flat (Sin sombras, fondo sólido para el overlay) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4); /* Overlay simple */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--bg-cards);
    width: 100%;
    max-width: 500px;
    max-height: 95vh;
    overflow-y: auto;
    border-radius: 8px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-color);
    padding: 24px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 1.25rem;
}

.btn-close {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-muted);
}

/* Forms */
.flat-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
}

.flat-input {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    background-color: var(--bg-main);
}

.flat-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.time-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.time-inputs .flat-input {
    flex: 1;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Tables */
.list-wrapper {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
}

.flat-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.flat-table th, .flat-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.flat-table th {
    font-weight: 600;
    color: var(--text-muted);
    background-color: var(--bg-cards);
}

.flat-table tr:hover td {
    background-color: #f8f9fa;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-pending { background-color: #fff3cd; color: #856404; }
.status-confirmed { background-color: #d4edda; color: #155724; }
.status-cancelled { background-color: #f8d7da; color: #721c24; }

/* ============================================
   HAMBURGER BUTTON (hidden on desktop)
   ============================================ */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-main);
    cursor: pointer;
    z-index: 1100;
}

.hamburger-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Sidebar overlay backdrop (mobile only) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
}

/* ============================================
   RESPONSIVE: TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
        padding: 20px;
    }

    .topbar {
        padding: 16px 20px;
    }

    .month-selector h2 {
        font-size: 1.25rem;
        min-width: 160px;
    }

    .calendar-wrapper,
    .list-wrapper {
        padding: 16px 20px;
    }

    .calendar-grid {
        grid-auto-rows: minmax(100px, auto);
    }

    .event-badge {
        font-size: 0.7rem;
        padding: 3px 5px;
    }
}

/* ============================================
   RESPONSIVE: MOBILE (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
    /* Show hamburger */
    .hamburger-btn {
        display: flex;
    }

    /* Show overlay when sidebar is open */
    .sidebar-overlay.active {
        display: block;
    }

    /* Layout becomes vertical */
    .layout {
        flex-direction: column;
        overflow: auto;
    }

    /* Sidebar: slide-over from left */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 24px;
        overflow-y: auto;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: block;
        pointer-events: none;
        opacity: 0;
    }

    .sidebar-overlay.active {
        display: block;
        pointer-events: auto;
        opacity: 1;
    }

    /* Main content takes full width */
    .main-content {
        width: 100%;
        height: 100vh;
    }

    /* Topbar */
    .topbar {
        padding: 12px 16px;
        gap: 8px;
    }

    .month-selector {
        gap: 8px;
    }

    .month-selector h2 {
        font-size: 1rem;
        min-width: auto;
    }

    .btn-icon {
        padding: 6px 10px;
        font-size: 1rem;
    }

    .actions .btn-primary {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    /* Calendar: horizontal scroll */
    .calendar-wrapper {
        padding: 12px;
        overflow-x: auto;
    }

    .calendar-header {
        min-width: 700px;
    }

    .calendar-grid {
        min-width: 700px;
        grid-auto-rows: minmax(90px, auto);
    }

    .day-name {
        padding: 8px 6px;
        font-size: 0.75rem;
    }

    .calendar-cell {
        padding: 6px;
    }

    .date-number {
        font-size: 0.8rem;
    }

    .event-badge {
        font-size: 0.65rem;
        padding: 2px 4px;
    }

    /* Tables: horizontal scroll */
    .list-wrapper {
        padding: 12px;
    }

    .list-wrapper .flat-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .flat-table th, .flat-table td {
        padding: 10px 12px;
        font-size: 0.85rem;
    }

    /* Modals: full screen on mobile */
    .modal-overlay {
        align-items: flex-end;
    }

    .modal-content {
        max-width: 100%;
        max-height: 92vh;
        border-radius: 16px 16px 0 0;
        padding: 20px 16px;
    }

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

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

    .form-actions button {
        width: 100%;
        text-align: center;
    }

    /* Summary cards: 1 column */
    .summary-grid-3 {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }

    .summary-grid-2 {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }

    .summary-card-value {
        font-size: 1.5rem !important;
    }

    /* Legend: hide on mobile (it's in the sidebar) */
    .legend {
        display: block;
    }
}

/* ============================================
   RESPONSIVE: SMALL PHONES (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
    .topbar {
        flex-wrap: wrap;
        padding: 10px 12px;
    }

    .month-selector h2 {
        font-size: 0.9rem;
    }

    .actions .btn-primary {
        padding: 7px 12px;
        font-size: 0.8rem;
    }

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

    .modal-header h3 {
        font-size: 1.1rem;
    }

    .flat-input {
        padding: 8px;
        font-size: 0.9rem;
    }
}