:root {
    --blanco: #FFFFFF;
    --azul-claro: #E8F4FD;
    --azul-medio: #4A90E2;
    --azul-oscuro: #1565C0;
    --dorado: #FFD700;
    --dorado-oscuro: #D4AF37;
    --gris-claro: #F0F4F8;
    --sombra-claro: rgba(255, 255, 255, 0.9);
    --sombra-oscuro: rgba(163, 177, 198, 0.4);
    --texto: #2C3E50;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background: linear-gradient(145deg, var(--azul-claro) 0%, var(--blanco) 100%);
    min-height: 100vh;
    color: var(--texto);
}

/* Neumorfismo Base */
.neumorphic {
    background: var(--blanco);
    border-radius: 20px;
    box-shadow: 
        8px 8px 16px var(--sombra-oscuro),
        -8px -8px 16px var(--sombra-claro);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.neumorphic-inset {
    background: var(--gris-claro);
    border-radius: 15px;
    box-shadow: 
        inset 4px 4px 8px var(--sombra-oscuro),
        inset -4px -4px 8px var(--sombra-claro);
    border: none;
}

/* Botones */
.btn-neumorphic {
    background: var(--blanco);
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    color: var(--azul-oscuro);
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 
        6px 6px 12px var(--sombra-oscuro),
        -6px -6px 12px var(--sombra-claro);
    transition: all 0.2s ease;
    width: 100%;
    margin-top: 15px;
}

.btn-neumorphic:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 
        8px 8px 16px var(--sombra-oscuro),
        -8px -8px 16px var(--sombra-claro);
}

.btn-neumorphic:active:not(:disabled) {
    box-shadow: 
        inset 4px 4px 8px var(--sombra-oscuro),
        inset -4px -4px 8px var(--sombra-claro);
    transform: translateY(0);
}

.btn-neumorphic.primary {
    background: linear-gradient(145deg, var(--azul-medio), var(--azul-oscuro));
    color: var(--blanco);
}

.btn-neumorphic.gold {
    background: linear-gradient(145deg, var(--dorado), var(--dorado-oscuro));
    color: var(--azul-oscuro);
}

.btn-neumorphic:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.login-card {
    padding: 40px 30px;
    text-align: center;
}

.login-card h2 {
    color: var(--azul-oscuro);
    font-size: 28px;
    margin-bottom: 5px;
}

.login-card p {
    color: var(--azul-medio);
    margin-bottom: 30px;
    font-size: 14px;
}

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

.input-group input {
    width: 100%;
    padding: 16px 20px;
    font-size: 16px;
    color: var(--texto);
    outline: none;
    transition: all 0.3s ease;
}

.input-group input:focus {
    box-shadow: 
        inset 6px 6px 12px var(--sombra-oscuro),
        inset -6px -6px 12px var(--sombra-claro);
}

.error-msg {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 15px;
    min-height: 20px;
}

/* Dashboard Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--blanco);
    padding: 30px 20px;
    box-shadow: 5px 0 20px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--azul-claro);
}

.sidebar-header h3 {
    color: var(--azul-oscuro);
    font-size: 20px;
}

.sidebar-menu {
    list-style: none;
    flex: 1;
}

.sidebar-menu li {
    margin: 10px 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: var(--texto);
    text-decoration: none;
    border-radius: 15px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--azul-medio);
    color: var(--blanco);
    box-shadow: 
        4px 4px 8px var(--sombra-oscuro),
        -4px -4px 8px var(--sombra-claro);
}

.sidebar-menu a.logout {
    color: #e74c3c;
    margin-top: auto;
}

.main-content {
    padding: 30px;
    overflow-y: auto;
    max-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 {
    color: var(--azul-oscuro);
    font-size: 28px;
}

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

.stat-card {
    padding: 25px;
    text-align: center;
}

.stat-card .icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.stat-card h3 {
    color: var(--azul-medio);
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--texto);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Tablas */
.table-container {
    padding: 25px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

th {
    text-align: left;
    padding: 15px;
    color: var(--azul-oscuro);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}

td {
    padding: 15px;
    background: var(--gris-claro);
    font-size: 14px;
}

tr td:first-child {
    border-radius: 10px 0 0 10px;
}

tr td:last-child {
    border-radius: 0 10px 10px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        flex-direction: row;
        padding: 10px;
        z-index: 100;
        box-shadow: 0 -5px 20px rgba(0,0,0,0.1);
    }
    
    .sidebar-header {
        display: none;
    }
    
    .sidebar-menu {
        display: flex;
        justify-content: space-around;
        width: 100%;
    }
    
    .sidebar-menu li {
        margin: 0;
    }
    
    .sidebar-menu a {
        flex-direction: column;
        padding: 10px;
        font-size: 12px;
        border-radius: 10px;
    }
    
    .sidebar-menu a span {
        font-size: 20px;
        margin-bottom: 5px;
    }
    
    .main-content {
        padding: 20px;
        padding-bottom: 100px;
    }
}