/* ==========================================================================
   CSS de Inicio de Sesión - Sistema de Fiscalización CPS
   Ajustado con un diseño premium, moderno y corporativo.
   ========================================================================== */

/* Variables del Sistema de Diseño */
:root {
    --cps-primary: #007b6d;
    --cps-primary-hover: #005b50;
    --cps-primary-light: rgba(0, 123, 109, 0.15);
    --cps-primary-glow: rgba(0, 123, 109, 0.25);
    --text-main: #2b3a42;
    --text-muted: #6c757d;
    --bg-card: rgba(255, 255, 255, 0.9);
    --border-color: #e2e8f0;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Configuración General */
html, body {
    height: 100%;
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: #f4f7f6;
    overflow-x: hidden;
}

/* Contenedor Principal (Flex Layout para centrar y empujar el footer) */
.login-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px 16px;
    z-index: 1;
}

/* Fondo Dinámico con Gradiente de Malla Premium (Mesh Gradient) */
.login-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(at 0% 0%, rgba(0, 123, 109, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(13, 110, 253, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 123, 109, 0.08) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(13, 202, 240, 0.08) 0px, transparent 50%),
        linear-gradient(135deg, #f0f4f3 0%, #e2e8f0 100%);
    z-index: -2;
}

/* Capa de Superposición Sutil */
.login-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(2px);
    z-index: -1;
}

/* Animación de entrada para la tarjeta de login */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tarjeta del Login (Glassmorphism) */
.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 18px;
    box-shadow: 
        0 10px 30px -10px rgba(0, 0, 0, 0.08), 
        0 1px 3px rgba(0, 0, 0, 0.03), 
        0 20px 40px -15px rgba(0, 123, 109, 0.05);
    width: 100%;
    max-width: 440px;
    padding: 40px;
    margin-bottom: auto; /* Empuja el footer hacia el final */
    margin-top: auto;    /* Centra verticalmente */
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Cabecera de la Tarjeta */
.login-card-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    max-height: 80px;
    width: auto;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.05));
    transition: transform 0.3s ease;
}

.login-logo:hover {
    transform: scale(1.05);
}

.login-title {
    font-size: 20px;
    font-weight: 700;
    color: #0b4c43;
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.login-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.4;
}

/* Formulario */
.login-form-element {
    width: 100%;
}

.form-label {
    font-size: 13px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 6px;
    display: inline-block;
}

/* Campos de entrada e iconos */
.input-group {
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
    transition: all 0.2s ease;
    background: #ffffff;
}

.input-group:focus-within {
    border-color: var(--cps-primary);
    box-shadow: 0 0 0 3px var(--cps-primary-light);
}

.input-group-text {
    background: #f8fafc;
    border: none;
    color: var(--cps-primary);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    font-size: 15px;
}

.input-group .form-control {
    border: none;
    padding: 10px 14px;
    font-size: 15px;
    color: var(--text-main);
    background: transparent;
}

.input-group .form-control:focus {
    box-shadow: none;
    outline: none;
    background: transparent;
}

/* Botón de alternar contraseña */
.toggle-password {
    background: #f8fafc;
    border: none;
    color: var(--text-muted);
    padding: 10px 14px;
    transition: all 0.15s ease;
}

.toggle-password:hover {
    color: var(--cps-primary);
    background: #f1f5f9;
}

.toggle-password:active {
    background: #e2e8f0;
}

/* Botón de Envío */
.btn-submit-login {
    background-color: var(--cps-primary);
    border: none;
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 24px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 12px var(--cps-primary-glow);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    margin-top: 10px;
}

.btn-submit-login:hover {
    background-color: var(--cps-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px var(--cps-primary-glow);
    color: #ffffff;
}

.btn-submit-login:active {
    transform: translateY(1px);
    box-shadow: 0 2px 6px var(--cps-primary-glow);
}

/* Alertas de error customizadas */
.alert-custom-danger {
    background-color: #fef2f2;
    border: 1px solid #fee2e2;
    color: #991b1b;
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 24px;
    font-size: 14px;
    line-height: 1.5;
}

.alert-info {
    border-radius: 10px;
    font-size: 14px;
    padding: 12px 16px;
}

/* Checkbox recordar sesión */
.form-check-input:checked {
    background-color: var(--cps-primary);
    border-color: var(--cps-primary);
}

.form-check-label {
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
}

/* Pie de Página (Footer) */
.login-footer {
    width: 100%;
    text-align: center;
    padding: 24px 0 8px 0;
    margin-top: auto; /* Permite colocarlo al final */
    z-index: 2;
}

.login-footer p {
    font-size: 12px;
    color: #64748b;
    margin: 0;
}

/* Adaptabilidad para Dispositivos Móviles */
@media (max-width: 480px) {
    .login-card {
        padding: 28px 20px;
        border-radius: 14px;
    }
    
    .login-logo {
        max-height: 70px;
    }
    
    .login-title {
        font-size: 18px;
    }
}