/* ========================================
   SISTEMA CHUNG IMPORTACIONES
   Colores: Blanco, Negro, Rojo
   ======================================== */

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

:root {
    --rojo-principal: #DC143C;
    --rojo-hover: #B01030;
    --negro: #1a1a1a;
    --gris-oscuro: #2c2c2c;
    --blanco: #FFFFFF;
    --gris-claro: #f5f5f5;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    min-height: 100vh;
    color: var(--negro);
}

/* ========================================
   LOGIN PAGE
   ======================================== */

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: var(--blanco);
    padding: 50px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(220, 20, 60, 0.3);
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-logo {
    margin-bottom: 30px;
}

.login-logo img {
    max-width: 250px;
    height: auto;
}

.login-logo h1 {
    color: var(--rojo-principal);
    font-size: 28px;
    font-weight: 700;
    margin-top: 15px;
}

.login-logo p {
    color: var(--gris-oscuro);
    font-size: 14px;
    margin-top: 5px;
}

.form-group {
    margin-bottom: 25px;
    text-align: left;
}

.form-group label {
    display: block;
    color: var(--negro);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--gris-claro);
}

.form-group input:focus {
    outline: none;
    border-color: var(--rojo-principal);
    background: var(--blanco);
    box-shadow: 0 0 0 3px rgba(220, 20, 60, 0.1);
}

.btn {
    width: 100%;
    padding: 14px;
    background: var(--rojo-principal);
    color: var(--blanco);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn:hover {
    background: var(--rojo-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(220, 20, 60, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.alert {
    padding: 12px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

/* ========================================
   DASHBOARD
   ======================================== */

.dashboard {
    min-height: 100vh;
    background: var(--gris-claro);
}

.navbar {
    background: var(--negro);
    color: var(--blanco);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 22px;
    font-weight: 700;
    color: var(--rojo-principal);
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-logout {
    background: var(--rojo-principal);
    color: var(--blanco);
    padding: 8px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: var(--rojo-hover);
}

.main-content {
    padding: 30px;
}

.dashboard-header {
    margin-bottom: 30px;
}

.dashboard-header h2 {
    color: var(--negro);
    font-size: 32px;
    margin-bottom: 10px;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.module-card {
    background: var(--blanco);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
    color: var(--negro);
}

.module-card:hover {
    border-color: var(--rojo-principal);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(220, 20, 60, 0.2);
}

.module-icon {
    font-size: 48px;
    color: var(--rojo-principal);
    margin-bottom: 15px;
}

.module-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--negro);
}

.module-card p {
    color: #666;
    font-size: 14px;
}

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

@media (max-width: 768px) {
    .login-box {
        padding: 30px 25px;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar {
        flex-direction: column;
        gap: 15px;
    }
}

/* ========================================
   LOGO NAVBAR
   ======================================== */

.logo-navbar {
    height: 60px;
    width: auto;
    vertical-align: middle;
}