/**
 * Estilos del Login - OMI Delega
 * Diseño sobrio y profesional
 */

/* === CONTENEDOR PRINCIPAL === */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    font-family: var(--font-sans);
}

/* === FONDO CON IMAGEN === */
.login-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.login-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../img/backgrounds/login-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.15;
}

.login-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
}

/* === CONTENEDOR DEL FORMULARIO === */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 450px;
    padding: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out;
}

/* === CARD DEL LOGIN === */
.login-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    padding: var(--spacing-3xl) var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
}

/* === LOGO Y TÍTULO === */
.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.login-logo-accent {
    color: var(--accent);
    font-weight: var(--font-weight-bold);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    margin-top: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* === FORMULARIO === */
.login-form {
    margin-top: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.form-control {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-card);
    transition: all var(--transition-base);
    font-family: var(--font-sans);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
    background-color: #fff;
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* === ICONOS EN INPUTS === */
.input-icon {
    position: absolute;
    left: 16px;
    top: 42px;
    color: var(--text-muted);
    font-size: var(--font-size-lg);
    pointer-events: none;
    transition: color var(--transition-fast);
}

.form-control:focus + .input-icon {
    color: var(--primary);
}

/* === CHECKBOX RECORDAR === */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-sm);
    cursor: pointer;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

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

/* === BOTÓN DE LOGIN === */
.btn-login {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 14px rgba(30, 58, 138, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.4);
}

.btn-login:hover::before {
    left: 100%;
}

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

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* === SPINNER DE CARGA === */
.btn-login .spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: var(--spacing-sm);
}

/* === ENLACES === */
.login-links {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.login-link {
    color: var(--primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.login-link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* === ALERTAS === */
.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    animation: slideDown 0.3s ease-out;
}

.alert i {
    margin-right: var(--spacing-sm);
}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.alert-info {
    background-color: var(--info-bg);
    color: var(--info);
    border: 1px solid var(--info-border);
}

/* === FOOTER === */
.login-footer {
    margin-top: var(--spacing-xl);
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* === ANIMACIONES === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* === RESPONSIVE === */
@media (max-width: 576px) {
    .login-container {
        padding: var(--spacing-md);
    }
    
    .login-card {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .login-logo {
        font-size: var(--font-size-3xl);
    }
}

/* === EFECTO DE PARTÍCULAS (OPCIONAL) === */
.login-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.3;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: float 15s infinite ease-in-out;
}

.particle:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 70%;
    right: 15%;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    width: 100px;
    height: 100px;
    bottom: 10%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-30px) scale(1.1);
    }
}