/* auth_glass.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Jost', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e40af 100%);
    position: relative;
    overflow: hidden;
    padding: 3rem 1rem;
   overflow-y: auto;
}

/* Círculos de luz para realzar el efecto Glassmorphism */
body::before, body::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
}

body::before {
    width: 300px;
    height: 300px;
    background: rgba(37, 99, 235, 0.4);
    top: 10%;
    left: 15%;
}

body::after {
    width: 350px;
    height: 350px;
    background: rgba(147, 51, 234, 0.3);
    bottom: 10%;
    right: 15%;
}

/* Tarjeta Principal de Cristal */
.glass-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    overflow: visible !important;
    margin: auto 0;
    
}

.brand-header {
    text-align: center;
    margin-bottom: 2rem;
}

.brand-header h1 {
    color: #ffffff;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand-header p {
    color: #94a3b8;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Selector de Pestañas (Tabs) */
.auth-tabs {
    display: flex;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: #94a3b8;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Formularios y Campos */
.auth-form {
    display: none;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-form.active {
    display: flex;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    color: #cbd5e1;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #ffffff;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-group input::placeholder {
    color: #64748b;
}

.input-group input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
    background: rgba(15, 23, 42, 0.7);
}

/* Botón principal */
.btn-submit {
    margin-top: 0.5rem;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-submit:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

/* Alertas de Estado */
.alert {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    text-align: center;
    backdrop-filter: blur(8px);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert-exito {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
}