/* =========================================================
   TECHFLOW MANAGER
   LIGHT MODE – DASHBOARD PROFESIONAL MODERNO
   Versión completa extendida
   ========================================================= */

/* =========================================================
   VARIABLES
   ========================================================= */

:root {

    /* === COLORES BASE === */
    --bg-main: #F4F6FA;
    --bg-sidebar: #FFFFFF;
    --bg-topbar: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-hover: #F9FAFB;

    --border-color: #E5E7EB;
    --border-soft: #F0F2F5;

    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;

    --primary: #E5383B;
    --primary-dark: #C1121F;
    --primary-soft: rgba(229, 56, 59, 0.08);
    --primary-glow: rgba(229, 56, 59, 0.25);

    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;

    --white: #FFFFFF;

    /* === DISEÑO === */
    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;

    --shadow-xs: 0 2px 4px rgba(0,0,0,0.03);
    --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 14px 40px rgba(0,0,0,0.08);
    --shadow-hover: 0 12px 30px rgba(229, 56, 59, 0.15);

    --transition-fast: all 0.2s ease;
    --transition: all 0.3s ease;
}

/* =========================================================
   RESET GLOBAL
   ========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* =========================================================
   SCROLLBAR MODERNO
   ========================================================= */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #D1D5DB;
    border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* =========================================================
   LAYOUT PRINCIPAL
   ========================================================= */

.wrapper {
    display: flex;
    min-height: 100vh;
}

/* =========================================================
   SIDEBAR
   ========================================================= */

.sidebar {
    width: 270px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.sidebar-header {
    padding: 28px 22px;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-header h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

/* Theme Toggle Switch */
.theme-toggle {
    display: flex;
    align-items: center;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.theme-icon {
    margin-left: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin: 4px 12px;
}

.sidebar-nav li.nav-section {
    margin: 18px 22px 6px;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.sidebar-nav li a i {
    width: 26px;
    font-size: 16px;
}

.sidebar-nav li a:hover {
    background: var(--primary-soft);
    color: var(--primary);
}

.sidebar-nav li.active a {
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
}

/* =========================================================
   MAIN CONTENT
   ========================================================= */

.main-content {
    flex: 1;
    margin-left: 270px;
    min-height: 100vh;
    transition: var(--transition);
}

/* =========================================================
   TOP BAR
   ========================================================= */

.top-bar {
    background: var(--bg-topbar);
    padding: 18px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 20px;
    margin-right: 20px;
    cursor: pointer;
    color: var(--text-secondary);
}

.menu-toggle:hover {
    color: var(--primary);
}

.page-title h1 {
    font-size: 22px;
    font-weight: 700;
}

.user-menu {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-name {
    font-size: 14px;
    color: var(--text-secondary);
}

/* =========================================================
   CONTENT WRAPPER
   ========================================================= */

.content-wrapper {
    padding: 30px;
}

/* =========================================================
   KPI CARDS
   ========================================================= */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.kpi-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.kpi-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.kpi-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: var(--primary-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.kpi-icon i {
    font-size: 20px;
    color: var(--primary);
}

.kpi-info h3 {
    font-size: 26px;
    font-weight: 700;
}

.kpi-info p {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    margin-bottom: 25px;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-soft);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    margin: 0;
}

.card-body {
    padding: 25px;
}

/* =========================================================
   TABLES
   ========================================================= */

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

.table th {
    padding: 14px;
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 14px;
    border-bottom: 1px solid var(--border-soft);
    color: var(--text-secondary);
}

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

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

.badge {
    padding: 5px 10px;
    border-radius: var(--radius-xs);
    font-size: 11px;
    font-weight: 600;
}

.badge-primary { background: var(--primary-soft); color: var(--primary); }
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,0.1); color: var(--danger); }

/* =========================================================
   ALERTS
   ========================================================= */

.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success { background: rgba(16,185,129,0.1); color: var(--success); }
.alert-danger  { background: rgba(239,68,68,0.1); color: var(--danger); }
.alert-warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.alert-info    { background: rgba(59,130,246,0.1); color: var(--info); }

/* =========================================================
   BUTTONS
   ========================================================= */

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
    text-decoration: none;
    font-size: 14px;
}

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

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

.btn-secondary {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

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

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

.btn-block {
    width: 100%;
    text-align: center;
}

/* =========================================================
   FORMULARIOS
   ========================================================= */

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

.form-group label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: block;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
    background: var(--bg-card);
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

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

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(6px);
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 18px;
}

.modal-footer {
    text-align: right;
    margin-top: 20px;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

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

.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-color);
    background: white;
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    display: inline-block;
}

.pagination a:hover,
.pagination .active span {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* =========================================================
   GRID SYSTEM
   ========================================================= */

.row {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.col-6 {
    grid-column: span 6;
}

.col-4 {
    grid-column: span 4;
}

.col-3 {
    grid-column: span 3;
}

/* =========================================================
   DETAILS PAGE
   ========================================================= */

.detail-group {
    margin-bottom: 15px;
}

.detail-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.detail-value {
    font-size: 16px;
    font-weight: 500;
}

/* =========================================================
   SIMULATOR SPECIFIC
   ========================================================= */

.simulator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.result-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-soft);
}

.result-price {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    margin: 20px 0;
}

.result-old-price {
    font-size: 24px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.result-percent {
    font-size: 32px;
    font-weight: 700;
    background: var(--primary-soft);
    color: var(--primary);
    display: inline-block;
    padding: 10px 30px;
    border-radius: var(--radius-sm);
    margin: 20px 0;
}

.category-row {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    border-bottom: 1px solid var(--border-soft);
}

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

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

@media (max-width: 1024px) {

    .sidebar {
        width: 250px;
    }

    .sidebar-nav li a span {
       /* display: none; */
    }

    .sidebar-header h2 {
        display: none;
    }
    
    .theme-toggle {
        margin: 0 auto;
    }

    .main-content {
        margin-left: 80px;
    }

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

@media (max-width: 768px) {

    .sidebar {
        transform: translateX(-100%);
    }

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

    .main-content {
        margin-left: 0;
    }

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

    .content-wrapper {
        padding: 20px;
    }
    
    .row {
        grid-template-columns: 1fr;
    }
    
    .col-6, .col-4, .col-3 {
        grid-column: span 1;
    }
}

/* =========================================================
   DARK MODE - Se activa con clase en body
   ========================================================= */

body.dark-mode {
    --bg-main: #0F1117;
    --bg-sidebar: #141720;
    --bg-topbar: #161A23;
    --bg-card: #1B1F2A;
    --bg-hover: #202636;

    --border-color: #2A2F3A;
    --border-soft: #242938;

    --text-primary: #F3F4F6;
    --text-secondary: #B5B9C5;
    --text-muted: #8B91A1;

    --primary: #E5383B;
    --primary-dark: #C1121F;
    --primary-soft: rgba(229, 56, 59, 0.12);
    --primary-glow: rgba(229, 56, 59, 0.35);

    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;

    --shadow-xs: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-sm: 0 6px 14px rgba(0,0,0,0.4);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.5);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.6);
    --shadow-hover: 0 14px 40px rgba(229, 56, 59, 0.25);
}

body.dark-mode .btn-secondary {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

body.dark-mode .modal-content {
    background: var(--bg-card);
    color: var(--text-primary);
}

body.dark-mode .pagination a,
body.dark-mode .pagination span {
    background: var(--bg-card);
    color: var(--text-secondary);
}

body.dark-mode .form-control {
    background: #141720;
    color: var(--text-primary);
}

/* =========================================================
   LOGOS
   ========================================================= */

/* Estilos para logos */
.sidebar-logo {
    max-width: 150px;
    max-height: 60px;
    object-fit: contain;
    margin: 0 auto 10px;
    display: block;
}

.topbar-logo {
    max-width: 100px;
    max-height: 40px;
    object-fit: contain;
    margin-right: 15px;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

@media (max-width: 1024px) {
    .sidebar-logo {
        max-width: 140px;
    }
    .sidebar-header {
        padding: 15px 5px;
    }
}

/* =========================================================
   LOGO - MODO OSCURO (INVERTIR COLORES)
   ========================================================= */

/* Logo para modo claro (por defecto) */
.sidebar-logo {
    content: url('../img/logo-edim.png');
}

/* Logo para modo oscuro */
body.dark-mode .sidebar-logo {
    content: url('../img/logo-edim-dark.png');
}

/* Logo para modo claro (por defecto) */
.topbar-logo {
    content: url('../img/logo-edim.png');
}

/* Logo para modo oscuro */
body.dark-mode .topbar-logo {
    content: url('../img/logo-edim-dark.png');
}