/**
 * RTEC — Diseño iOS / macOS Glassmorphism
 * Sistema de Gestión de Celulares y Accesorios
 */

/* ============================================
   VARIABLES
   ============================================ */
:root {
    /* Acento iOS azul */
    --primary:       #0A84FF;
    --primary-dark:  #0066CC;
    --primary-light: #3FA3FF;
    --primary-rgb:   10, 132, 255;

    /* Éxito — iOS green */
    --success:       #30D158;
    --success-dark:  #25A244;
    --success-light: #63E87C;
    --success-rgb:   48, 209, 88;

    /* Peligro — iOS red */
    --danger:        #FF453A;
    --danger-dark:   #D63028;
    --danger-light:  #FF7B73;
    --danger-rgb:    255, 69, 58;

    /* Advertencia — iOS orange/yellow */
    --warning:       #FF9F0A;
    --warning-dark:  #C77700;
    --warning-light: #FFB84D;
    --warning-rgb:   255, 159, 10;

    /* Info — iOS teal */
    --info:          #5AC8FA;
    --info-dark:     #32ADE6;
    --info-light:    #82D9FC;

    /* Grises */
    --gray-50:  #f2f2f7;
    --gray-100: #e5e5ea;
    --gray-200: #d1d1d6;
    --gray-300: #c7c7cc;
    --gray-400: #aeaeb2;
    --gray-500: #8e8e93;
    --gray-600: #636366;
    --gray-700: #3a3a3c;
    --gray-800: #2c2c2e;
    --gray-900: #1c1c1e;

    /* Layout */
    --header-height: 64px;
    --sidebar-width: 256px;
    --sidebar-collapsed-width: 72px;
    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;

    /* Fuente SF Pro / Inter */
    --font-primary: -apple-system, 'SF Pro Display', 'SF Pro Text', BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;

    /* Glass */
    --glass-bg:        rgba(255,255,255,0.72);
    --glass-bg-dark:   rgba(28,28,30,0.72);
    --glass-border:    rgba(255,255,255,0.55);
    --glass-border-sm: rgba(255,255,255,0.35);
    --glass-blur:      blur(28px) saturate(180%);
    --glass-blur-sm:   blur(14px) saturate(160%);
    --glass-shadow:    0 8px 40px rgba(0,0,0,0.12), 0 1px 0 rgba(255,255,255,0.6) inset;

    /* Sombras */
    --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
    --shadow:    0 4px 16px rgba(0,0,0,0.09);
    --shadow-md: 0 8px 28px rgba(0,0,0,0.12);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.16);
    --shadow-xl: 0 28px 64px rgba(0,0,0,0.20);

    /* Transición iOS */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --spring: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   Autocomplete de búsquedas
   ============================================ */
.autocomplete-wrapper {
    position: relative;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: var(--radius-sm);
    margin-top: 6px;
    max-height: 280px;
    overflow-y: auto;
    z-index: 200;
}

.autocomplete-item {
    padding: 11px 14px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.autocomplete-item:hover {
    background: rgba(var(--primary-rgb), 0.08);
}

.autocomplete-title {
    font-weight: 600;
    color: var(--gray-800);
}

.autocomplete-meta {
    font-size: 12px;
    color: var(--gray-500);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.autocomplete-estado {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(90,200,250,0.15);
    color: var(--info-dark);
    font-weight: 600;
}

.autocomplete-estado.vendido {
    background: rgba(var(--danger-rgb),0.12);
    color: var(--danger-dark);
}

.autocomplete-empty {
    padding: 12px 14px;
    color: var(--gray-500);
    font-size: 13px;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.35);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    padding: 22px;
    max-width: 960px;
    width: 92%;
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 30px; height: 30px;
    border-radius: 50%;
    background: rgba(var(--danger-rgb),0.12);
    border: none;
    font-size: 14px;
    cursor: pointer;
    color: var(--danger);
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.modal-close:hover { background: rgba(var(--danger-rgb),0.22); }

.modal-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 20px;
}

.modal-photo img {
    width: 100%;
    border-radius: var(--radius-sm);
    object-fit: cover;
    min-height: 260px;
    background: var(--gray-100);
}

.modal-info h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
}

.modal-info .mono {
    font-family: 'SF Mono', ui-monospace, monospace;
    color: var(--primary);
    margin: 4px 0 10px;
    font-size: 13px;
}

.modal-info .small {
    font-size: 13px;
    color: var(--gray-500);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
}

.meta-grid .label {
    display: block;
    font-size: 10px;
    font-weight: 700;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 2px;
}

.meta-grid strong {
    color: var(--gray-800);
    font-weight: 700;
    font-size: 15px;
}

@media (max-width: 768px) {
    .modal-grid { grid-template-columns: 1fr; }
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    /* Fondo estilo iOS — degradado suave */
    background: linear-gradient(145deg, #e8f0fe 0%, #f0f7ff 25%, #faf5ff 55%, #f0fff4 80%, #fffbf0 100%);
    background-attachment: fixed;
    color: var(--gray-800);
    line-height: 1.5;
    min-height: 100vh;
}

/* ============================================
   HEADER — glass bar estilo macOS
   ============================================ */
.main-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-height);
    background: rgba(255,255,255,0.78);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid rgba(255,255,255,0.6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    z-index: 100;
    box-shadow: 0 1px 0 rgba(0,0,0,0.08), 0 4px 20px rgba(0,0,0,0.06);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toggle-sidebar {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--gray-500);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-xs);
    transition: var(--transition);
}

.toggle-sidebar:hover {
    background: rgba(var(--primary-rgb),0.1);
    color: var(--primary);
}

.logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.logo i {
    font-size: 1.4rem;
    color: var(--primary);
    filter: drop-shadow(0 2px 6px rgba(var(--primary-rgb),0.4));
}

.header-center {
    flex: 1;
    max-width: 520px;
    margin: 0 1.5rem;
}

.search-bar {
    position: relative;
    width: 100%;
}

.search-bar i {
    position: absolute;
    left: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 13px;
}

.search-bar input {
    width: 100%;
    padding: 9px 14px 9px 38px;
    background: rgba(142,142,147,0.12);
    border: 1.5px solid transparent;
    border-radius: 12px;
    font-size: 14px;
    font-family: var(--font-primary);
    color: var(--gray-800);
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    background: rgba(255,255,255,0.9);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb),0.12);
}

.search-bar input::placeholder { color: var(--gray-400); }

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.caja-status {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    background: rgba(142,142,147,0.1);
    border: 1px solid rgba(142,142,147,0.2);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-500);
    transition: var(--transition);
}

.caja-status.activa {
    background: rgba(var(--success-rgb),0.12);
    border-color: rgba(var(--success-rgb),0.3);
    color: var(--success-dark);
}

/* Notificaciones */
.notifications { position: relative; }

.notification-btn {
    position: relative;
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--gray-500);
    cursor: pointer;
    padding: 9px;
    border-radius: 50%;
    transition: var(--transition);
}

.notification-btn:hover {
    background: rgba(var(--primary-rgb),0.1);
    color: var(--primary);
}

.notification-btn .badge {
    position: absolute;
    top: 4px; right: 4px;
    background: var(--danger);
    color: white;
    font-size: 9px;
    min-width: 16px; height: 16px;
    padding: 0 4px;
    border-radius: 999px;
    font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid white;
}

/* Dropdown notificaciones */
.notification-dropdown {
    position: absolute;
    top: calc(100% + 10px); right: 0;
    width: 340px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    display: none; z-index: 1000;
    overflow: hidden;
}

.notifications:focus-within .notification-dropdown,
.notifications.open .notification-dropdown { display: block; }

.notification-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; border-bottom: 1px solid rgba(0,0,0,0.06);
}

.notification-header h4 { font-size: 15px; font-weight: 700; color: var(--gray-900); }

.mark-all-read {
    background: none; border: none; color: var(--primary);
    font-size: 12px; font-weight: 600; cursor: pointer;
}

.notification-list { max-height: 320px; overflow-y: auto; }

.empty-notifications {
    padding: 32px 16px; text-align: center; color: var(--gray-400);
}
.empty-notifications i { font-size: 28px; display: block; margin-bottom: 8px; }
.empty-notifications p { font-size: 13px; }

/* Usuario */
.user-menu { position: relative; }

.user-btn {
    display: flex; align-items: center; gap: 8px;
    background: none; border: none; cursor: pointer;
    padding: 6px 10px; border-radius: 30px; transition: var(--transition);
}

.user-btn:hover { background: rgba(var(--primary-rgb),0.08); }

.user-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb),0.35);
}

.user-btn img {
    width: 36px; height: 36px; border-radius: 50%; object-fit: cover;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.user-btn > span {
    font-size: 13px; font-weight: 600; color: var(--gray-700);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 10px); right: 0;
    min-width: 210px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    display: none; z-index: 1000; overflow: hidden;
}

.user-menu:hover .user-dropdown { display: block; }

.user-info { padding: 14px 16px; }
.user-name  { font-weight: 700; color: var(--gray-900); font-size: 14px; }
.user-role  { font-size: 12px; color: var(--gray-500); margin-top: 2px; }

.user-dropdown a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 16px; color: var(--gray-700); text-decoration: none;
    font-size: 13px; font-weight: 500; transition: var(--transition);
}

.user-dropdown a:hover { background: rgba(var(--primary-rgb),0.07); color: var(--primary); }

.user-dropdown hr { margin: 4px 0; border: none; border-top: 1px solid rgba(0,0,0,0.07); }

.logout-btn { color: var(--danger) !important; }
.logout-btn:hover { background: rgba(var(--danger-rgb),0.08) !important; }

/* ============================================
   SIDEBAR — glass panel estilo macOS
   ============================================ */
.sidebar {
    position: fixed;
    top: var(--header-height); left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: rgba(255,255,255,0.68);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-right: 1px solid rgba(255,255,255,0.55);
    overflow-y: auto;
    z-index: 90;
    transition: var(--transition);
    box-shadow: 4px 0 24px rgba(0,0,0,0.05);
}

.sidebar-nav { padding: 10px 10px; }

.nav-section { padding: 14px 14px 6px; }

.nav-section h3 {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-400);
    letter-spacing: 0.08em;
}

.nav-item {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 14px; margin-bottom: 2px;
    color: var(--gray-600); text-decoration: none;
    border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
    transition: var(--transition); position: relative;
}

.nav-item i {
    font-size: 16px; width: 22px; text-align: center; flex-shrink: 0;
}

.nav-item:hover {
    background: rgba(var(--primary-rgb),0.08);
    color: var(--primary);
    transform: translateX(2px);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(var(--primary-rgb),0.18), rgba(var(--primary-rgb),0.08));
    color: var(--primary);
    font-weight: 700;
    box-shadow: 0 2px 12px rgba(var(--primary-rgb),0.15), inset 0 1px 0 rgba(255,255,255,0.5);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 20%; bottom: 20%;
    width: 3px; border-radius: 2px;
    background: var(--primary);
    box-shadow: 0 0 8px rgba(var(--primary-rgb),0.6);
}

.badge-count, .badge-alert, .badge-new {
    margin-left: auto;
    padding: 2px 8px; border-radius: 999px;
    font-size: 11px; font-weight: 700;
}

.badge-count { background: rgba(var(--warning-rgb),0.18); color: var(--warning-dark); }
.badge-alert { background: rgba(var(--danger-rgb),0.14);  color: var(--danger-dark); }
.badge-new   { background: rgba(var(--success-rgb),0.16); color: var(--success-dark); }

.sidebar-footer {
    position: sticky; bottom: 0;
    background: rgba(255,255,255,0.7);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(0,0,0,0.06);
    padding: 12px 16px;
    font-size: 12px; color: var(--gray-400);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 2rem;
    min-height: calc(100vh - var(--header-height));
}

/* ============================================
   FLASH MESSAGES
   ============================================ */
.flash-message {
    position: fixed;
    top: calc(var(--header-height) + 14px); right: 16px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 14px 20px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: var(--glass-shadow);
    z-index: 1000;
    animation: slideInFlash 0.35s cubic-bezier(0.34,1.56,0.64,1);
    max-width: 380px;
}

@keyframes slideInFlash {
    from { transform: translateX(110%); opacity: 0; }
    to   { transform: translateX(0);   opacity: 1; }
}

.flash-message i { font-size: 20px; }

.flash-success { border-left: 3px solid var(--success); }
.flash-success i { color: var(--success); }

.flash-error { border-left: 3px solid var(--danger); }
.flash-error i { color: var(--danger); }

.flash-warning { border-left: 3px solid var(--warning); }
.flash-warning i { color: var(--warning); }

.close-flash {
    background: none; border: none; cursor: pointer;
    color: var(--gray-400); padding: 4px; margin-left: auto;
    border-radius: 50%; transition: var(--transition);
}
.close-flash:hover { background: rgba(0,0,0,0.07); color: var(--gray-600); }

/* ============================================
   BOTONES — estilo iOS
   ============================================ */
.btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 10px 20px;
    border: none; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 600;
    cursor: pointer; transition: var(--transition);
    text-decoration: none; font-family: var(--font-primary);
    letter-spacing: -0.1px;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 16px rgba(var(--primary-rgb),0.35);
}
.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 6px 22px rgba(var(--primary-rgb),0.45);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 16px rgba(var(--success-rgb),0.35);
}
.btn-success:hover {
    background: var(--success-dark);
    box-shadow: 0 6px 22px rgba(var(--success-rgb),0.45);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 4px 16px rgba(var(--danger-rgb),0.3);
}
.btn-danger:hover {
    background: var(--danger-dark);
    transform: translateY(-1px);
}

.btn-outline {
    background: rgba(255,255,255,0.7);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1.5px solid var(--gray-200);
    color: var(--gray-700);
}
.btn-outline:hover {
    background: rgba(var(--primary-rgb),0.07);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}

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

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex; align-items: center;
    padding: 3px 10px; border-radius: 999px;
    font-size: 12px; font-weight: 700;
}

.badge-admin       { background: rgba(var(--primary-rgb),0.15); color: var(--primary-dark); }
.badge-vendedor    { background: rgba(90,200,250,0.15);          color: var(--info-dark); }
.badge-encargado   { background: rgba(var(--success-rgb),0.15);  color: var(--success-dark); }
.badge-contabilidad{ background: rgba(var(--warning-rgb),0.15);  color: var(--warning-dark); }

/* ============================================
   TARJETAS GENÉRICAS — glass card
   ============================================ */
.card {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 16px 48px rgba(0,0,0,0.13), 0 1px 0 rgba(255,255,255,0.7) inset;
    transform: translateY(-2px);
}

.card-header {
    padding: 18px 22px 0;
    display: flex; align-items: center; gap: 12px;
}

.card-body { padding: 18px 22px; }

/* ============================================
   FORMULARIOS GLASS
   ============================================ */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 12px; font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase; letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    background: rgba(255,255,255,0.65);
    border: 1.5px solid rgba(0,0,0,0.1);
    border-radius: var(--radius-sm);
    font-size: 14px; font-family: var(--font-primary);
    color: var(--gray-800);
    transition: var(--transition);
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(255,255,255,0.9);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb),0.12);
}

/* ============================================
   TABLAS GLASS
   ============================================ */
.table-wrap {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
}

.table {
    width: 100%; border-collapse: collapse;
    font-size: 14px;
}

.table thead tr {
    background: rgba(var(--primary-rgb),0.06);
    border-bottom: 1px solid rgba(0,0,0,0.07);
}

.table thead th {
    padding: 12px 16px;
    text-align: left; font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--gray-500);
}

.table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(0,0,0,0.045);
    color: var(--gray-700);
}

.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: rgba(var(--primary-rgb),0.04); }

/* ============================================
   UTILIDADES
   ============================================ */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info    { color: var(--info); }
.text-red     { color: var(--danger); }
.font-bold    { font-weight: 600; }
.mt-3 { margin-top: 1rem; }
.mb-3 { margin-bottom: 1rem; }

/* Footer */
.main-footer {
    margin-left: var(--sidebar-width);
    padding: 16px 2rem;
    font-size: 12px; color: var(--gray-400);
    border-top: 1px solid rgba(0,0,0,0.06);
    background: rgba(255,255,255,0.5);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    text-align: center;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: var(--header-height); left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.35);
        -webkit-backdrop-filter: blur(4px);
        backdrop-filter: blur(4px);
        z-index: 80;
    }
    .sidebar-overlay.active { display: block; }
    .header-center { display: none; }
    .main-footer { margin-left: 0; }
}


.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
    border-radius: 0.5rem;
    margin-top: 4px;
    max-height: 260px;
    overflow-y: auto;
    z-index: 20;
}

.autocomplete-item {
    padding: 10px 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.autocomplete-item:hover {
    background: var(--gray-50);
}

.autocomplete-title {
    font-weight: 600;
    color: var(--gray-800);
}

.autocomplete-meta {
    font-size: 12px;
    color: var(--gray-500);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.autocomplete-estado {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 999px;
    background: #ecfeff;
    color: #0ea5e9;
}

.autocomplete-estado.vendido {
    background: #fee2e2;
    color: #b91c1c;
}

.autocomplete-empty {
    padding: 10px 12px;
    color: var(--gray-500);
    font-size: 13px;
}

/* ============================================
   Modal de detalle rápido
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    padding: 18px;
    max-width: 960px;
    width: 90%;
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--gray-500);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 18px;
}

.modal-photo img {
    width: 100%;
    border-radius: 10px;
    object-fit: cover;
    min-height: 260px;
    background: var(--gray-100);
}

.modal-info h2 {
    margin: 0;
    font-size: 24px;
    color: var(--gray-800);
}

.modal-info .mono {
    font-family: monospace;
    color: #0ea5e9;
    margin: 4px 0 10px 0;
}

.modal-info .small {
    font-size: 13px;
    color: var(--gray-600);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}

.meta-grid .label {
    display: block;
    font-size: 11px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-grid strong {
    color: var(--gray-800);
    font-weight: 700;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

/* ============================================
   HEADER
   ============================================ */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.toggle-sidebar {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.toggle-sidebar:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 1.75rem;
}

.header-center {
    flex: 1;
    max-width: 600px;
    margin: 0 2rem;
}

.search-bar {
    position: relative;
    width: 100%;
}

.search-bar i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.caja-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.caja-status.activa {
    background: #d1fae5;
    color: var(--success-dark);
}

/* Notificaciones */
.notifications {
    position: relative;
}

.notification-btn {
    position: relative;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.notification-btn:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.notification-btn .badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    border-radius: 999px;
    font-weight: 600;
}

/* Usuario */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.user-btn:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-btn img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    display: none;
    z-index: 1000;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-info {
    padding: 1rem;
}

.user-name {
    font-weight: 600;
    color: var(--gray-800);
}

.user-role {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

.user-dropdown a:hover {
    background: var(--gray-50);
    color: var(--primary);
}

.user-dropdown hr {
    margin: 0.5rem 0;
    border: none;
    border-top: 1px solid var(--gray-200);
}

.logout-btn {
    color: var(--danger) !important;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: white;
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    z-index: 90;
    transition: var(--transition);
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section {
    padding: 1rem 1.5rem 0.5rem;
}

.nav-section h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.05em;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-item i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.nav-item:hover {
    background: var(--gray-50);
    color: var(--primary);
}

.nav-item.active {
    background: var(--primary);
    color: white;
    font-weight: 500;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-dark);
}

.badge-count,
.badge-alert,
.badge-new {
    margin-left: auto;
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-count {
    background: var(--warning-light);
    color: var(--warning-dark);
}

.badge-alert {
    background: var(--danger-light);
    color: var(--danger-dark);
}

.badge-new {
    background: var(--success-light);
    color: var(--success-dark);
}

.sidebar-footer {
    position: sticky;
    bottom: 0;
    background: white;
    border-top: 1px solid var(--gray-200);
    padding: 1rem 1.5rem;
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 2rem;
    min-height: calc(100vh - var(--header-height));
}

/* ============================================
   FLASH MESSAGES
   ============================================ */
.flash-message {
    position: fixed;
    top: calc(var(--header-height) + 1rem);
    right: 1rem;
    background: white;
    border-radius: 0.5rem;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.flash-message i {
    font-size: 1.5rem;
}

.flash-success {
    border-left: 4px solid var(--success);
    color: var(--success-dark);
}

.flash-success i {
    color: var(--success);
}

.flash-error {
    border-left: 4px solid var(--danger);
    color: var(--danger-dark);
}

.flash-error i {
    color: var(--danger);
}

.flash-warning {
    border-left: 4px solid var(--warning);
    color: var(--warning-dark);
}

.flash-warning i {
    color: var(--warning);
}

.close-flash {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 0.25rem;
    margin-left: auto;
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

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

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

.btn-success:hover {
    background: var(--success-dark);
}

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

.btn-danger:hover {
    background: var(--danger-dark);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--primary);
    color: var(--primary);
}

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

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-admin {
    background: var(--primary-light);
    color: white;
}

.badge-vendedor {
    background: var(--info-light);
    color: white;
}

.badge-encargado {
    background: var(--success-light);
    color: white;
}

.badge-contabilidad {
    background: var(--warning-light);
    color: var(--warning-dark);
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-red { color: var(--danger); }

.font-bold { font-weight: 600; }

.mt-3 { margin-top: 1rem; }
.mb-3 { margin-bottom: 1rem; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 80;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .header-center {
        display: none;
    }
}