/* --- Variables Globales (identidad corporativa Comercial Genesis) --- */
:root {
    --primary-color: #173B63; /* Azul corporativo profundo */
    --primary-hover: #245A8D;
    --accent-color: #D4A017; /* Dorado, uso como detalle/acento */
    --sidebar-bg: linear-gradient(135deg, #F4F6F8 0%, #E4EAF0 55%, #D7E2EC 100%);
    --body-bg: #F4F6F8;
    --form-bg: #ffffff;
    --text-color: #1F2937;
    --text-secondary: #6B7280;
    --sidebar-text-color: #173B63;
    --input-border-color: #D9E1E8;
    --input-focus-color: var(--primary-color);
    --error-color: #C0392B;
    --success-color: #198754;
    --box-shadow: 0 10px 30px rgba(23, 59, 99, 0.10);
}

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

body, html {
    height: 100%;
    font-family: 'Poppins', sans-serif;
    background-color: var(--body-bg);
    color: var(--text-color);
    overflow-x: hidden;
}

/* --- Decoración animada de fondo (pantalla completa) --- */
.bg-decor {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.bg-decor .shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.35;
    will-change: transform;
}

.bg-circle-1 {
    width: 460px;
    height: 460px;
    top: -140px;
    left: -120px;
    background: radial-gradient(circle at 30% 30%, #7C9CBF, transparent 70%);
    animation: bgDriftA 24s ease-in-out infinite alternate;
}

.bg-circle-2 {
    width: 380px;
    height: 380px;
    bottom: -150px;
    right: -90px;
    background: radial-gradient(circle at 70% 70%, #D4A017, transparent 70%);
    opacity: 0.18;
    animation: bgDriftB 20s ease-in-out infinite alternate;
}

.bg-blob-1 {
    width: 320px;
    height: 320px;
    top: 45%;
    left: 65%;
    background: radial-gradient(circle, #A9C0D6, transparent 70%);
    opacity: 0.4;
    animation: bgDriftC 18s ease-in-out infinite alternate;
}

.bg-dots {
    position: absolute;
    inset: -40px;
    background-image: radial-gradient(#245A8D 1.5px, transparent 1.5px);
    background-size: 42px 42px;
    opacity: 0.25;
    animation: bgDotsFloat 25s linear infinite;
}

@keyframes bgDriftA {
    from { transform: translate(0, 0); }
    to { transform: translate(75px, 55px); }
}

@keyframes bgDriftB {
    from { transform: translate(0, 0); }
    to { transform: translate(-60px, -70px); }
}

@keyframes bgDriftC {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(-45px, 40px) scale(1.12); }
}

@keyframes bgDotsFloat {
    from { transform: translate(0, 0); }
    to { transform: translate(-42px, -42px); }
}

/* --- Contenedor Principal (Wrapper) --- */
.login-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 100vh;
    padding: 20px;
}

/* --- Contenedor del Login --- */
.login-container {
    display: flex;
    flex-direction: column; /* Apilado en móvil por defecto */
    width: 100%;
    max-width: 400px; /* Tamaño máximo para móviles */
    background-color: var(--form-bg);
    border-radius: 16px;
    box-shadow: var(--box-shadow);
    overflow: hidden; /* Mantiene los bordes redondeados */
    transition: all 0.3s ease-in-out;
}

/* --- Barra Lateral (Sidebar) --- */
.login-sidebar {
    position: relative;
    overflow: hidden;
    background: var(--sidebar-bg);
    color: var(--sidebar-text-color);
    padding: 40px 20px;
    text-align: center;
}

.sidebar-decor {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

    .sidebar-decor .shape {
        position: absolute;
        border-radius: 50%;
        opacity: 0.5;
        will-change: transform;
    }

.sidebar-circle-1 {
    width: 220px;
    height: 220px;
    top: -60px;
    right: -60px;
    background: radial-gradient(circle at 30% 30%, #D7E2EC, transparent 70%);
    animation: bgDriftA 20s ease-in-out infinite alternate;
}

.sidebar-circle-2 {
    width: 180px;
    height: 180px;
    bottom: -50px;
    left: -50px;
    background: radial-gradient(circle at 70% 70%, #A9C0D6, transparent 70%);
    animation: bgDriftB 23s ease-in-out infinite alternate;
}

.sidebar-content {
    position: relative;
    z-index: 1;
}

.logo-container {
    display: inline-block;
    background: rgba(255, 255, 255, 0.75);
    border-radius: 20px;
    padding: 20px 28px;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(23, 59, 99, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.sidebar-content .logo {
    max-width: 170px;
    display: block;
    margin: 0 auto;
}

.sidebar-content h1 {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1.5rem;
    color: var(--text-color);
}

.sidebar-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sidebar-content .tagline {
    margin-top: 14px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-color);
    opacity: 0.9;
}

/* --- Sección del Formulario --- */
.login-form-section {
    padding: 40px 30px;
}

.login-form-content h2 {
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
    color: var(--text-color);
}

/* --- Grupos de Formulario y Campos de Texto --- */
.form-group {
    margin-bottom: 20px;
    width: 100%;
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: var(--input-border-color);
    transition: color 0.3s ease;
}

.form-control {
    width: 100%;
    padding: 12px 12px 12px 45px; /* Espacio para el ícono */
    border: 1px solid var(--input-border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

    .form-control:focus {
        outline: none;
        border-color: var(--input-focus-color);
        box-shadow: 0 0 0 3px rgba(23, 59, 99, 0.15);
    }

        .form-control:focus + .input-icon i,
        .form-control:not(:placeholder-shown) + .input-icon i {
            color: var(--primary-color);
        }

/* --- Botón de Login --- */
.btn-login {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

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

/* --- Mensajes de Error y Alertas --- */
.error-message {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-top: -15px;
    display: block;
    margin-bottom: 10px;
    padding-left: 5px;
}

.alert-message {
    display: block;
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    text-align: center;
    border-radius: 8px;
    background-color: var(--error-color); /* Por defecto, para error de credenciales */
    color: white;
}


/* --- Responsive Design (Para Tablets y Escritorios) --- */
@media (min-width: 768px) {
    .login-container {
        flex-direction: row; /* Columnas lado a lado */
        max-width: 800px; /* Más ancho en pantallas grandes */
    }

    .login-sidebar, .login-form-section {
        flex: 1; /* Ambas columnas toman el 50% del espacio */
    }

    .login-sidebar {
        display: flex;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    .login-form-section {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .login-form-content {
        width: 100%;
        max-width: 350px; /* Controla el ancho del formulario dentro de su sección */
    }
}

/* --- Responsive: reducir elementos decorativos en móvil --- */
@media (max-width: 767px) {
    .bg-blob-1,
    .bg-dots {
        display: none;
    }

    .bg-circle-1,
    .bg-circle-2 {
        opacity: 0.2;
    }

    .logo-container {
        padding: 16px 22px;
    }

    .sidebar-content .logo {
        max-width: 130px;
    }
}

@media (max-width: 480px) {
    .bg-decor {
        display: none;
    }

    .login-wrapper {
        padding: 12px;
    }
}

/* --- Accesibilidad: respetar preferencia de movimiento reducido --- */
@media (prefers-reduced-motion: reduce) {
    .bg-circle-1,
    .bg-circle-2,
    .bg-blob-1,
    .bg-dots,
    .sidebar-circle-1,
    .sidebar-circle-2 {
        animation: none !important;
    }

    .btn-login:hover {
        transform: none;
    }

    * {
        transition-duration: 0.01ms !important;
    }
}